Bug in i915 video driver?

Hate posting another thread, but I’m a bit stumped here, and the nature of the issue is making troubleshooting problematic.

New computer with Alder Lake chipset, Rocky 9 installed. System boots fine, my display works as expected, but when I go into Settings and then to Display, it comes up as ‘Unknown Display’, unable to change resolution. That part isn’t so bad, but I’m running several systems (including a Rocky 8 box) on a KVM switch, I’ve found that if I switch to another system for more than a few seconds, when I switch back I can’t get the display to come up, and I’m forced to reboot the box.

System has dual DisplayPort outputs, no VGA or HDMI.

[wright@localhost ~]$ sudo lspci -v
(snip)
0000:00:02.0 VGA compatible controller: Intel Corporation AlderLake-S GT1 (rev 0c) (prog-if 00 [VGA controller])
	Subsystem: Dell Device 0ac1
	Flags: bus master, fast devsel, latency 0, IRQ 255
	Memory at 6002000000 (64-bit, non-prefetchable) [size=16M]
	Memory at 4000000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 3000 [size=64]
	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
	Capabilities: [40] Vendor Specific Information: Len=0c <?>
	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
	Capabilities: [ac] MSI: Enable- Count=1/1 Maskable+ 64bit-
	Capabilities: [d0] Power Management version 2
	Capabilities: [100] Process Address Space ID (PASID)
	Capabilities: [200] Address Translation Service (ATS)
	Capabilities: [300] Page Request Interface (PRI)
	Capabilities: [320] Single Root I/O Virtualization (SR-IOV)
	Kernel modules: i915

[wright@localhost ~]$ modinfo i915
filename:       /lib/modules/5.14.0-70.22.1.el9_0.x86_64/kernel/drivers/gpu/drm/i915/i915.ko.xz
license:        GPL and additional rights
description:    Intel Graphics
author:         Intel Corporation
author:         Tungsten Graphics, Inc.
import_ns:      DMA_BUF
(snip)

[wright@localhost ~]$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 2560 x 1440, current 2560 x 1440, maximum 2560 x 1440
default connected primary 2560x1440+0+0 0mm x 0mm
   2560x1440     93.00* 

I installed a package called monitor-edid which would supposedly read the EDID settings for the display, but these commands returned no results, which seems to me indicates that the system isn’t reading my display at all. But I’m stumped on how to troubleshoot from here.

What do you see in /var/log/Xorg. 0. log?

I’m not convinced that i915 is the correct driver for this new gpu. Might want to google around and see what spec information is available on the Alder Lake gpu. Phoronix might be a good place to look also.

I found this article that seemed to indicate that AlderLake-S GT1 would use the i915 driver, it also indicated support issues with kernel 5.15, and Rocky is using 5.14, no idea if any fixes have made their way back into 5.14 or not.

Below is the Xorg.0.log file. I saw some video information there but I’ve never had need to troubleshoot this sort of issue so I’m not sure what’s actually relevant here.

[root@localhost log]# cat Xorg.0.log
[    22.128] (--) Log file renamed from "/var/log/Xorg.pid-1938.log" to "/var/log/Xorg.0.log"
[    22.129] 
X.Org X Server 1.20.11
X Protocol Version 11, Revision 0
[    22.129] Build Operating System:  5.4.188-104.359.amzn2.x86_64 
[    22.129] Current Operating System: Linux localhost.localdomain 5.14.0-70.22.1.el9_0.x86_64 #1 SMP PREEMPT Tue Aug 9 19:45:51 UTC 2022 x86_64
[    22.129] Kernel command line: BOOT_IMAGE=(hd1,gpt2)/vmlinuz-5.14.0-70.22.1.el9_0.x86_64 root=/dev/mapper/rl-root ro crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M resume=/dev/mapper/rl-swap rd.lvm.lv=rl/root rd.lvm.lv=rl/swap rhgb quiet
[    22.129] Build Date: 10 February 2022  12:00:00AM
[    22.129] Build ID: xorg-x11-server 1.20.11-10.el9 
[    22.129] Current version of pixman: 0.40.0
[    22.129] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[    22.129] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    22.129] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Sep 16 23:15:07 2022
[    22.130] (==) Using config directory: "/etc/X11/xorg.conf.d"
[    22.130] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    22.130] (==) No Layout section.  Using the first Screen section.
[    22.130] (==) No screen section available. Using defaults.
[    22.130] (**) |-->Screen "Default Screen Section" (0)
[    22.130] (**) |   |-->Monitor "<default monitor>"
[    22.130] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[    22.130] (==) Automatically adding devices
[    22.130] (==) Automatically enabling devices
[    22.130] (==) Automatically adding GPU devices
[    22.130] (==) Automatically binding GPU devices
[    22.130] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    22.130] (==) FontPath set to:
	catalogue:/etc/X11/fontpath.d,
	built-ins
[    22.130] (==) ModulePath set to "/usr/lib64/xorg/modules"
[    22.130] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[    22.130] (II) Loader magic: 0x560632dadd40
[    22.130] (II) Module ABI versions:
[    22.130] 	X.Org ANSI C Emulation: 0.4
[    22.130] 	X.Org Video Driver: 24.1
[    22.130] 	X.Org XInput driver : 24.1
[    22.130] 	X.Org Server Extension : 10.0
[    22.131] (++) using VT number 1

[    22.131] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c1
[    22.132] (--) PCI:*(0@0:2:0) 8086:4680:1028:0ac1 rev 12, Mem @ 0x6002000000/16777216, 0x4000000000/268435456, I/O @ 0x00003000/64, BIOS @ 0x????????/65536
[    22.132] (II) LoadModule: "glx"
[    22.132] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[    22.135] (II) Module glx: vendor="X.Org Foundation"
[    22.135] 	compiled for 1.20.11, module version = 1.0.0
[    22.135] 	ABI class: X.Org Server Extension, version 10.0
[    22.135] (==) Matched modesetting as autoconfigured driver 0
[    22.135] (==) Matched fbdev as autoconfigured driver 1
[    22.135] (==) Matched vesa as autoconfigured driver 2
[    22.135] (==) Assigned the driver to the xf86ConfigLayout
[    22.135] (II) LoadModule: "modesetting"
[    22.135] (II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
[    22.137] (II) Module modesetting: vendor="X.Org Foundation"
[    22.137] 	compiled for 1.20.11, module version = 1.20.11
[    22.137] 	Module class: X.Org Video Driver
[    22.137] 	ABI class: X.Org Video Driver, version 24.1
[    22.137] (II) LoadModule: "fbdev"
[    22.137] (II) Loading /usr/lib64/xorg/modules/drivers/fbdev_drv.so
[    22.137] (II) Module fbdev: vendor="X.Org Foundation"
[    22.137] 	compiled for 1.20.11, module version = 0.5.0
[    22.137] 	Module class: X.Org Video Driver
[    22.137] 	ABI class: X.Org Video Driver, version 24.1
[    22.137] (II) LoadModule: "vesa"
[    22.137] (WW) Warning, couldn't open module vesa
[    22.137] (EE) Failed to load module "vesa" (module does not exist, 0)
[    22.137] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    22.137] (II) FBDEV: driver for framebuffer: fbdev
[    22.137] (WW) Falling back to old probe method for modesetting
[    22.137] (EE) open /dev/dri/card0: No such file or directory
[    22.137] (WW) Falling back to old probe method for fbdev
[    22.137] (II) Loading sub module "fbdevhw"
[    22.137] (II) LoadModule: "fbdevhw"
[    22.137] (II) Loading /usr/lib64/xorg/modules/libfbdevhw.so
[    22.137] (II) Module fbdevhw: vendor="X.Org Foundation"
[    22.137] 	compiled for 1.20.11, module version = 0.0.2
[    22.137] 	ABI class: X.Org Video Driver, version 24.1
[    22.137] (II) FBDEV(0): using default device
[    22.137] (II) FBDEV(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[    22.137] (==) FBDEV(0): Depth 24, (==) framebuffer bpp 32
[    22.137] (==) FBDEV(0): RGB weight 888
[    22.137] (==) FBDEV(0): Default visual is TrueColor
[    22.137] (==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
[    22.137] (II) FBDEV(0): hardware: EFI VGA (video memory: 14400kB)
[    22.137] (DB) xf86MergeOutputClassOptions unsupported bus type 0
[    22.137] (II) FBDEV(0): checking modes against framebuffer device...
[    22.137] (II) FBDEV(0): checking modes against monitor...
[    22.137] (II) FBDEV(0): Virtual size is 2560x1440 (pitch 2560)
[    22.137] (**) FBDEV(0):  Built-in mode "current": 368.7 MHz, 135.6 kHz, 92.6 Hz
[    22.137] (II) FBDEV(0): Modeline "current"x0.0  368.73  2560 2592 2656 2720  1440 1444 1448 1464 -hsync -vsync -csync (135.6 kHz b)
[    22.137] (==) FBDEV(0): DPI set to (96, 96)
[    22.137] (II) Loading sub module "fb"
[    22.137] (II) LoadModule: "fb"
[    22.137] (II) Module "fb" already built-in
[    22.137] (**) FBDEV(0): using shadow framebuffer
[    22.137] (II) Loading sub module "shadow"
[    22.137] (II) LoadModule: "shadow"
[    22.137] (II) Loading /usr/lib64/xorg/modules/libshadow.so
[    22.138] (II) Module shadow: vendor="X.Org Foundation"
[    22.138] 	compiled for 1.20.11, module version = 1.1.0
[    22.138] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    22.138] (II) UnloadModule: "modesetting"
[    22.138] (II) Unloading modesetting
[    22.138] (II) FBDEV(0): FBIOBLANK: Invalid argument (Screen blanking not supported by kernel - disabling)
[    22.138] (==) FBDEV(0): Backing store enabled
[    22.138] (==) FBDEV(0): DPMS enabled
[    22.139] (II) Initializing extension Generic Event Extension
[    22.139] (II) Initializing extension SHAPE
[    22.139] (II) Initializing extension MIT-SHM
[    22.139] (II) Initializing extension XInputExtension
[    22.139] (II) Initializing extension XTEST
[    22.139] (II) Initializing extension BIG-REQUESTS
[    22.139] (II) Initializing extension SYNC
[    22.139] (II) Initializing extension XKEYBOARD
[    22.139] (II) Initializing extension XC-MISC
[    22.139] (II) Initializing extension SECURITY
[    22.139] (II) Initializing extension XFIXES
[    22.139] (II) Initializing extension RENDER
[    22.139] (II) Initializing extension RANDR
[    22.139] (II) Initializing extension COMPOSITE
[    22.139] (II) Initializing extension DAMAGE
[    22.139] (II) Initializing extension MIT-SCREEN-SAVER
[    22.139] (II) Initializing extension DOUBLE-BUFFER
[    22.140] (II) Initializing extension RECORD
[    22.140] (II) Initializing extension DPMS
[    22.140] (II) Initializing extension Present
[    22.140] (II) Initializing extension DRI3
[    22.140] (II) Initializing extension X-Resource
[    22.140] (II) Initializing extension XVideo
[    22.140] (II) Initializing extension XVideo-MotionCompensation
[    22.140] (II) Initializing extension SELinux
[    22.140] (II) SELinux: Disabled by boolean
[    22.140] (II) Initializing extension GLX
[    22.140] (II) AIGLX: Screen 0 is not DRI2 capable
[    22.181] (II) IGLX: Loaded and initialized swrast
[    22.181] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[    22.181] (II) Initializing extension XFree86-VidModeExtension
[    22.181] (II) Initializing extension XFree86-DGA
[    22.181] (II) Initializing extension DRI2
[    22.199] (II) config/udev: Adding input device Power Button (/dev/input/event2)
[    22.199] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[    22.199] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[    22.199] (**) Power Button: Applying InputClass "system-keyboard"
[    22.199] (II) LoadModule: "libinput"
[    22.199] (II) Loading /usr/lib64/xorg/modules/input/libinput_drv.so
[    22.201] (II) Module libinput: vendor="X.Org Foundation"
[    22.201] 	compiled for 1.20.11, module version = 1.0.1
[    22.201] 	Module class: X.Org XInput Driver
[    22.201] 	ABI class: X.Org XInput driver, version 24.1
[    22.201] (II) Using input driver 'libinput' for 'Power Button'
[    22.202] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 22 paused 0
[    22.202] (**) Power Button: always reports core events
[    22.202] (**) Option "Device" "/dev/input/event2"
[    22.202] (**) Option "_source" "server/udev"
[    22.206] (II) event2  - Power Button: is tagged by udev as: Keyboard
[    22.206] (II) event2  - Power Button: device is a keyboard
[    22.206] (II) event2  - Power Button: device removed
[    22.206] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2/event2"
[    22.206] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6)
[    22.206] (**) Option "xkb_layout" "us"
[    22.206] (II) event2  - Power Button: is tagged by udev as: Keyboard
[    22.207] (II) event2  - Power Button: device is a keyboard
[    22.207] (II) config/udev: Adding input device Power Button (/dev/input/event0)
[    22.207] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[    22.207] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[    22.207] (**) Power Button: Applying InputClass "system-keyboard"
[    22.207] (II) Using input driver 'libinput' for 'Power Button'
[    22.207] (II) systemd-logind: got fd for /dev/input/event0 13:64 fd 25 paused 0
[    22.207] (**) Power Button: always reports core events
[    22.207] (**) Option "Device" "/dev/input/event0"
[    22.207] (**) Option "_source" "server/udev"
[    22.207] (II) event0  - Power Button: is tagged by udev as: Keyboard
[    22.207] (II) event0  - Power Button: device is a keyboard
[    22.207] (II) event0  - Power Button: device removed
[    22.207] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0/event0"
[    22.207] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 7)
[    22.207] (**) Option "xkb_layout" "us"
[    22.208] (II) event0  - Power Button: is tagged by udev as: Keyboard
[    22.208] (II) event0  - Power Button: device is a keyboard
[    22.208] (II) config/udev: Adding input device Sleep Button (/dev/input/event1)
[    22.208] (**) Sleep Button: Applying InputClass "evdev keyboard catchall"
[    22.208] (**) Sleep Button: Applying InputClass "libinput keyboard catchall"
[    22.208] (**) Sleep Button: Applying InputClass "system-keyboard"
[    22.208] (II) Using input driver 'libinput' for 'Sleep Button'
[    22.208] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 26 paused 0
[    22.208] (**) Sleep Button: always reports core events
[    22.208] (**) Option "Device" "/dev/input/event1"
[    22.208] (**) Option "_source" "server/udev"
[    22.208] (II) event1  - Sleep Button: is tagged by udev as: Keyboard
[    22.208] (II) event1  - Sleep Button: device is a keyboard
[    22.208] (II) event1  - Sleep Button: device removed
[    22.208] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input1/event1"
[    22.208] (II) XINPUT: Adding extended input device "Sleep Button" (type: KEYBOARD, id 8)
[    22.208] (**) Option "xkb_layout" "us"
[    22.209] (II) event1  - Sleep Button: is tagged by udev as: Keyboard
[    22.209] (II) event1  - Sleep Button: device is a keyboard
[    22.209] (II) config/udev: Adding input device Generic USB (/dev/input/event3)
[    22.209] (**) Generic USB: Applying InputClass "evdev keyboard catchall"
[    22.209] (**) Generic USB: Applying InputClass "libinput keyboard catchall"
[    22.209] (**) Generic USB: Applying InputClass "system-keyboard"
[    22.209] (II) Using input driver 'libinput' for 'Generic USB'
[    22.209] (II) systemd-logind: got fd for /dev/input/event3 13:67 fd 27 paused 0
[    22.209] (**) Generic USB: always reports core events
[    22.209] (**) Option "Device" "/dev/input/event3"
[    22.209] (**) Option "_source" "server/udev"
[    22.210] (II) event3  - Generic USB: is tagged by udev as: Keyboard
[    22.210] (II) event3  - Generic USB: device is a keyboard
[    22.210] (II) event3  - Generic USB: device removed
[    22.210] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.1/1-6.1:1.0/0003:09EB:0131.0001/input/input3/event3"
[    22.210] (II) XINPUT: Adding extended input device "Generic USB" (type: KEYBOARD, id 9)
[    22.210] (**) Option "xkb_layout" "us"
[    22.210] (II) event3  - Generic USB: is tagged by udev as: Keyboard
[    22.210] (II) event3  - Generic USB: device is a keyboard
[    22.211] (II) config/udev: Adding input device Generic USB Mouse (/dev/input/event4)
[    22.211] (**) Generic USB Mouse: Applying InputClass "evdev pointer catchall"
[    22.211] (**) Generic USB Mouse: Applying InputClass "libinput pointer catchall"
[    22.211] (II) Using input driver 'libinput' for 'Generic USB Mouse'
[    22.211] (II) systemd-logind: got fd for /dev/input/event4 13:68 fd 28 paused 0
[    22.211] (**) Generic USB Mouse: always reports core events
[    22.211] (**) Option "Device" "/dev/input/event4"
[    22.211] (**) Option "_source" "server/udev"
[    22.211] (II) event4  - Generic USB Mouse: is tagged by udev as: Mouse
[    22.212] (II) event4  - Generic USB Mouse: device is a pointer
[    22.212] (II) event4  - Generic USB Mouse: device removed
[    22.212] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.1/1-6.1:1.1/0003:09EB:0131.0002/input/input4/event4"
[    22.212] (II) XINPUT: Adding extended input device "Generic USB Mouse" (type: MOUSE, id 10)
[    22.212] (**) Option "AccelerationScheme" "none"
[    22.212] (**) Generic USB Mouse: (accel) selected scheme none/0
[    22.212] (**) Generic USB Mouse: (accel) acceleration factor: 2.000
[    22.212] (**) Generic USB Mouse: (accel) acceleration threshold: 4
[    22.212] (II) event4  - Generic USB Mouse: is tagged by udev as: Mouse
[    22.212] (II) event4  - Generic USB Mouse: device is a pointer
[    22.213] (II) config/udev: Adding input device Generic USB Mouse (/dev/input/mouse0)
[    22.213] (II) No input driver specified, ignoring this device.
[    22.213] (II) This device may have been added with another device file.
[    22.213] (II) config/udev: Adding input device Generic USB Consumer Control (/dev/input/event5)
[    22.213] (**) Generic USB Consumer Control: Applying InputClass "evdev keyboard catchall"
[    22.213] (**) Generic USB Consumer Control: Applying InputClass "libinput keyboard catchall"
[    22.213] (**) Generic USB Consumer Control: Applying InputClass "system-keyboard"
[    22.213] (II) Using input driver 'libinput' for 'Generic USB Consumer Control'
[    22.213] (II) systemd-logind: got fd for /dev/input/event5 13:69 fd 29 paused 0
[    22.213] (**) Generic USB Consumer Control: always reports core events
[    22.213] (**) Option "Device" "/dev/input/event5"
[    22.213] (**) Option "_source" "server/udev"
[    22.214] (II) event5  - Generic USB Consumer Control: is tagged by udev as: Keyboard
[    22.214] (II) event5  - Generic USB Consumer Control: device is a keyboard
[    22.214] (II) event5  - Generic USB Consumer Control: device removed
[    22.214] (II) libinput: Generic USB Consumer Control: needs a virtual subdevice
[    22.214] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.1/1-6.1:1.1/0003:09EB:0131.0002/input/input5/event5"
[    22.214] (II) XINPUT: Adding extended input device "Generic USB Consumer Control" (type: MOUSE, id 11)
[    22.214] (**) Option "AccelerationScheme" "none"
[    22.214] (**) Generic USB Consumer Control: (accel) selected scheme none/0
[    22.214] (**) Generic USB Consumer Control: (accel) acceleration factor: 2.000
[    22.214] (**) Generic USB Consumer Control: (accel) acceleration threshold: 4
[    22.214] (II) event5  - Generic USB Consumer Control: is tagged by udev as: Keyboard
[    22.214] (II) event5  - Generic USB Consumer Control: device is a keyboard
[    22.214] (II) config/udev: Adding input device Generic USB System Control (/dev/input/event6)
[    22.215] (**) Generic USB System Control: Applying InputClass "evdev keyboard catchall"
[    22.215] (**) Generic USB System Control: Applying InputClass "libinput keyboard catchall"
[    22.215] (**) Generic USB System Control: Applying InputClass "system-keyboard"
[    22.215] (II) Using input driver 'libinput' for 'Generic USB System Control'
[    22.215] (II) systemd-logind: got fd for /dev/input/event6 13:70 fd 30 paused 0
[    22.215] (**) Generic USB System Control: always reports core events
[    22.215] (**) Option "Device" "/dev/input/event6"
[    22.215] (**) Option "_source" "server/udev"
[    22.215] (II) event6  - Generic USB System Control: is tagged by udev as: Keyboard
[    22.215] (II) event6  - Generic USB System Control: device is a keyboard
[    22.215] (II) event6  - Generic USB System Control: device removed
[    22.215] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.1/1-6.1:1.1/0003:09EB:0131.0002/input/input6/event6"
[    22.215] (II) XINPUT: Adding extended input device "Generic USB System Control" (type: KEYBOARD, id 12)
[    22.215] (**) Option "xkb_layout" "us"
[    22.216] (II) event6  - Generic USB System Control: is tagged by udev as: Keyboard
[    22.216] (II) event6  - Generic USB System Control: device is a keyboard
[    22.216] (II) config/udev: Adding input device Logitech G300s Optical Gaming Mouse (/dev/input/event7)
[    22.216] (**) Logitech G300s Optical Gaming Mouse: Applying InputClass "evdev pointer catchall"
[    22.216] (**) Logitech G300s Optical Gaming Mouse: Applying InputClass "libinput pointer catchall"
[    22.216] (II) Using input driver 'libinput' for 'Logitech G300s Optical Gaming Mouse'
[    22.268] (II) systemd-logind: got fd for /dev/input/event7 13:71 fd 31 paused 0
[    22.268] (**) Logitech G300s Optical Gaming Mouse: always reports core events
[    22.268] (**) Option "Device" "/dev/input/event7"
[    22.268] (**) Option "_source" "server/udev"
[    22.269] (II) event7  - Logitech G300s Optical Gaming Mouse: is tagged by udev as: Mouse
[    22.269] (II) event7  - Logitech G300s Optical Gaming Mouse: device is a pointer
[    22.269] (II) event7  - Logitech G300s Optical Gaming Mouse: device removed
[    22.269] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.0/0003:046D:C246.0003/input/input7/event7"
[    22.269] (II) XINPUT: Adding extended input device "Logitech G300s Optical Gaming Mouse" (type: MOUSE, id 13)
[    22.269] (**) Option "AccelerationScheme" "none"
[    22.269] (**) Logitech G300s Optical Gaming Mouse: (accel) selected scheme none/0
[    22.269] (**) Logitech G300s Optical Gaming Mouse: (accel) acceleration factor: 2.000
[    22.269] (**) Logitech G300s Optical Gaming Mouse: (accel) acceleration threshold: 4
[    22.269] (II) event7  - Logitech G300s Optical Gaming Mouse: is tagged by udev as: Mouse
[    22.269] (II) event7  - Logitech G300s Optical Gaming Mouse: device is a pointer
[    22.270] (II) config/udev: Adding input device Logitech G300s Optical Gaming Mouse (/dev/input/mouse1)
[    22.270] (II) No input driver specified, ignoring this device.
[    22.270] (II) This device may have been added with another device file.
[    22.270] (II) config/udev: Adding input device Logitech G300s Optical Gaming Mouse Keyboard (/dev/input/event8)
[    22.270] (**) Logitech G300s Optical Gaming Mouse Keyboard: Applying InputClass "evdev keyboard catchall"
[    22.270] (**) Logitech G300s Optical Gaming Mouse Keyboard: Applying InputClass "libinput keyboard catchall"
[    22.270] (**) Logitech G300s Optical Gaming Mouse Keyboard: Applying InputClass "system-keyboard"
[    22.270] (II) Using input driver 'libinput' for 'Logitech G300s Optical Gaming Mouse Keyboard'
[    22.271] (II) systemd-logind: got fd for /dev/input/event8 13:72 fd 32 paused 0
[    22.271] (**) Logitech G300s Optical Gaming Mouse Keyboard: always reports core events
[    22.271] (**) Option "Device" "/dev/input/event8"
[    22.271] (**) Option "_source" "server/udev"
[    22.271] (II) event8  - Logitech G300s Optical Gaming Mouse Keyboard: is tagged by udev as: Keyboard
[    22.271] (II) event8  - Logitech G300s Optical Gaming Mouse Keyboard: device is a keyboard
[    22.271] (II) event8  - Logitech G300s Optical Gaming Mouse Keyboard: device removed
[    22.271] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.1/0003:046D:C246.0004/input/input8/event8"
[    22.271] (II) XINPUT: Adding extended input device "Logitech G300s Optical Gaming Mouse Keyboard" (type: KEYBOARD, id 14)
[    22.271] (**) Option "xkb_layout" "us"
[    22.272] (II) event8  - Logitech G300s Optical Gaming Mouse Keyboard: is tagged by udev as: Keyboard
[    22.272] (II) event8  - Logitech G300s Optical Gaming Mouse Keyboard: device is a keyboard
[    22.272] (II) config/udev: Adding input device Logitech G300s Optical Gaming Mouse (/dev/input/event9)
[    22.272] (II) No input driver specified, ignoring this device.
[    22.272] (II) This device may have been added with another device file.
[    22.272] (II) config/udev: Adding input device Intel HID events (/dev/input/event10)
[    22.272] (**) Intel HID events: Applying InputClass "evdev keyboard catchall"
[    22.272] (**) Intel HID events: Applying InputClass "libinput keyboard catchall"
[    22.272] (**) Intel HID events: Applying InputClass "system-keyboard"
[    22.272] (II) Using input driver 'libinput' for 'Intel HID events'
[    22.272] (II) systemd-logind: got fd for /dev/input/event10 13:74 fd 33 paused 0
[    22.272] (**) Intel HID events: always reports core events
[    22.273] (**) Option "Device" "/dev/input/event10"
[    22.273] (**) Option "_source" "server/udev"
[    22.273] (II) event10 - Intel HID events: is tagged by udev as: Keyboard
[    22.273] (II) event10 - Intel HID events: device is a keyboard
[    22.273] (II) event10 - Intel HID events: device removed
[    22.273] (**) Option "config_info" "udev:/sys/devices/platform/INTC1070:00/input/input10/event10"
[    22.273] (II) XINPUT: Adding extended input device "Intel HID events" (type: KEYBOARD, id 15)
[    22.273] (**) Option "xkb_layout" "us"
[    22.273] (II) event10 - Intel HID events: is tagged by udev as: Keyboard
[    22.273] (II) event10 - Intel HID events: device is a keyboard
[    22.273] (II) config/udev: Adding input device Intel HID 5 button array (/dev/input/event11)
[    22.273] (**) Intel HID 5 button array: Applying InputClass "evdev keyboard catchall"
[    22.273] (**) Intel HID 5 button array: Applying InputClass "libinput keyboard catchall"
[    22.273] (**) Intel HID 5 button array: Applying InputClass "system-keyboard"
[    22.273] (II) Using input driver 'libinput' for 'Intel HID 5 button array'
[    22.274] (II) systemd-logind: got fd for /dev/input/event11 13:75 fd 34 paused 0
[    22.274] (**) Intel HID 5 button array: always reports core events
[    22.274] (**) Option "Device" "/dev/input/event11"
[    22.274] (**) Option "_source" "server/udev"
[    22.274] (II) event11 - Intel HID 5 button array: is tagged by udev as: Keyboard
[    22.274] (II) event11 - Intel HID 5 button array: device is a keyboard
[    22.274] (II) event11 - Intel HID 5 button array: device removed
[    22.274] (**) Option "config_info" "udev:/sys/devices/platform/INTC1070:00/input/input11/event11"
[    22.274] (II) XINPUT: Adding extended input device "Intel HID 5 button array" (type: KEYBOARD, id 16)
[    22.274] (**) Option "xkb_layout" "us"
[    22.274] (II) event11 - Intel HID 5 button array: is tagged by udev as: Keyboard
[    22.274] (II) event11 - Intel HID 5 button array: device is a keyboard
[    22.274] (II) config/udev: Adding input device Dell WMI hotkeys (/dev/input/event12)
[    22.275] (**) Dell WMI hotkeys: Applying InputClass "evdev keyboard catchall"
[    22.275] (**) Dell WMI hotkeys: Applying InputClass "libinput keyboard catchall"
[    22.275] (**) Dell WMI hotkeys: Applying InputClass "system-keyboard"
[    22.275] (II) Using input driver 'libinput' for 'Dell WMI hotkeys'
[    22.275] (II) systemd-logind: got fd for /dev/input/event12 13:76 fd 35 paused 0
[    22.275] (**) Dell WMI hotkeys: always reports core events
[    22.275] (**) Option "Device" "/dev/input/event12"
[    22.275] (**) Option "_source" "server/udev"
[    22.275] (II) event12 - Dell WMI hotkeys: is tagged by udev as: Keyboard
[    22.275] (II) event12 - Dell WMI hotkeys: device is a keyboard
[    22.275] (II) event12 - Dell WMI hotkeys: device removed
[    22.275] (**) Option "config_info" "udev:/sys/devices/platform/PNP0C14:02/wmi_bus/wmi_bus-PNP0C14:02/9DBB5994-A997-11DA-B012-B622A1EF5492/input/input12/event12"
[    22.275] (II) XINPUT: Adding extended input device "Dell WMI hotkeys" (type: KEYBOARD, id 17)
[    22.275] (**) Option "xkb_layout" "us"
[    22.276] (II) event12 - Dell WMI hotkeys: is tagged by udev as: Keyboard
[    22.276] (II) event12 - Dell WMI hotkeys: device is a keyboard
[    22.276] (II) config/udev: Adding input device PC Speaker (/dev/input/event13)
[    22.276] (II) No input driver specified, ignoring this device.
[    22.276] (II) This device may have been added with another device file.
[    22.278] (**) Generic USB Consumer Control: Applying InputClass "evdev keyboard catchall"
[    22.278] (**) Generic USB Consumer Control: Applying InputClass "libinput keyboard catchall"
[    22.278] (**) Generic USB Consumer Control: Applying InputClass "system-keyboard"
[    22.278] (II) Using input driver 'libinput' for 'Generic USB Consumer Control'
[    22.278] (II) systemd-logind: returning pre-existing fd for /dev/input/event5 13:69
[    22.278] (**) Generic USB Consumer Control: always reports core events
[    22.278] (**) Option "Device" "/dev/input/event5"
[    22.278] (**) Option "_source" "_driver/libinput"
[    22.278] (II) libinput: Generic USB Consumer Control: is a virtual subdevice
[    22.278] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.1/1-6.1:1.1/0003:09EB:0131.0002/input/input5/event5"
[    22.278] (II) XINPUT: Adding extended input device "Generic USB Consumer Control" (type: KEYBOARD, id 18)
[    22.278] (**) Option "xkb_layout" "us"
[    35.003] (**) Option "fd" "22"
[    35.003] (II) event2  - Power Button: device removed
[    35.003] (**) Option "fd" "25"
[    35.003] (II) event0  - Power Button: device removed
[    35.004] (**) Option "fd" "26"
[    35.004] (II) event1  - Sleep Button: device removed
[    35.004] (**) Option "fd" "27"
[    35.004] (II) event3  - Generic USB: device removed
[    35.004] (**) Option "fd" "28"
[    35.004] (II) event4  - Generic USB Mouse: device removed
[    35.004] (**) Option "fd" "29"
[    35.004] (**) Option "fd" "30"
[    35.004] (II) event6  - Generic USB System Control: device removed
[    35.004] (**) Option "fd" "31"
[    35.004] (II) event7  - Logitech G300s Optical Gaming Mouse: device removed
[    35.004] (**) Option "fd" "32"
[    35.004] (II) event8  - Logitech G300s Optical Gaming Mouse Keyboard: device removed
[    35.004] (**) Option "fd" "33"
[    35.004] (II) event10 - Intel HID events: device removed
[    35.004] (**) Option "fd" "34"
[    35.004] (II) event11 - Intel HID 5 button array: device removed
[    35.004] (**) Option "fd" "35"
[    35.004] (II) event12 - Dell WMI hotkeys: device removed
[    35.004] (**) Option "fd" "29"
[    35.004] (II) event5  - Generic USB Consumer Control: device removed
[    35.005] (II) systemd-logind: got pause for 13:66
[    35.005] (II) systemd-logind: got pause for 13:69
[    35.005] (II) systemd-logind: got pause for 13:65
[    35.005] (II) systemd-logind: got pause for 13:70
[    35.005] (II) systemd-logind: got pause for 13:64
[    35.005] (II) systemd-logind: got pause for 13:71
[    35.005] (II) systemd-logind: got pause for 13:68
[    35.005] (II) systemd-logind: got pause for 13:75
[    35.005] (II) systemd-logind: got pause for 13:76
[    35.005] (II) systemd-logind: got pause for 13:67
[    35.005] (II) systemd-logind: got pause for 13:72
[    35.005] (II) systemd-logind: got pause for 13:74
[    36.726] (II) UnloadModule: "libinput"
[    36.726] (II) systemd-logind: not releasing fd for 13:69, still in use
[    36.726] (II) UnloadModule: "libinput"
[    36.726] (II) systemd-logind: releasing fd for 13:76
[    36.739] (II) UnloadModule: "libinput"
[    36.739] (II) systemd-logind: releasing fd for 13:75
[    36.758] (II) UnloadModule: "libinput"
[    36.758] (II) systemd-logind: releasing fd for 13:74
[    36.773] (II) UnloadModule: "libinput"
[    36.773] (II) systemd-logind: releasing fd for 13:72
[    36.789] (II) UnloadModule: "libinput"
[    36.789] (II) systemd-logind: releasing fd for 13:71
[    36.798] (II) UnloadModule: "libinput"
[    36.798] (II) systemd-logind: releasing fd for 13:70
[    36.809] (II) UnloadModule: "libinput"
[    36.809] (II) systemd-logind: releasing fd for 13:69
[    36.818] (II) UnloadModule: "libinput"
[    36.818] (II) systemd-logind: releasing fd for 13:68
[    36.831] (II) UnloadModule: "libinput"
[    36.831] (II) systemd-logind: releasing fd for 13:67
[    36.846] (II) UnloadModule: "libinput"
[    36.846] (II) systemd-logind: releasing fd for 13:65
[    36.860] (II) UnloadModule: "libinput"
[    36.860] (II) systemd-logind: releasing fd for 13:64
[    36.874] (II) UnloadModule: "libinput"
[    36.874] (II) systemd-logind: releasing fd for 13:66
[    36.884] (II) Server terminated successfully (0). Closing log file.
[root@localhost log]# 

Ya, I don’t see anything. I use a KVM switch between laptop and RL server and monitor is usually off. I have problems when turning on the monitor to log into RL. It will claim no signal til I’ve fiddled with up|dn arrows or switch between console / graphic modes but I never have issues when a session is ongoing on both machines of switching between them. Have you tried unplugging -replugging in the display port connector on the Dell when this happens?
What is the history with the KVM?

KVM is a StarTech.com SV431DPUA2, 4 port DisplayPort switch. It’s under a year old, has a newer MacMini attached, a Rocky 8.6 system (Intel i7-7700T, Intel HD Graphics 630). Also previously had another Rocky 9 system (Intel i5-6600T, Intel HD Graphics 530).

No KVM issues with those other Rocky systems, but the graphics chipsets are older versions, and both of those correctly recognized my monitor brand info correctly and displayed this in the Settings/Display panel. Also had no problems switching to an inactive (but not sleeping) system and waking the display when switching the KVM. So far I’ve found nothing that would trigger this new system with the
AlderLake-S GT1 chipset to display a screen after switching away.

I’ve found this bugzilla report that seems similar to what I’ve found, I’ve added some comments there.