# Installing the prerequisites for Ansys Fluent breaks the Abaqus GUI on Rocky Linux 9.6 **URL:** \ **Category:** Rocky Linux Help & Support\ **Tags:** rocky-linux-9\ **Created:** [September 17, 2026, 7:04pm UTC](https://forums.rockylinux.org/t/installing-the-prerequisites-for-ansys-fluent-breaks-the-abaqus-gui-on-rocky-linux-9-6/20804 "2026-09-17T19:04:14Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![segmentation\_fault](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@segmentation\_fault](https://forums.rockylinux.org/u/segmentation_fault)\ **Post date:** [September 17, 2026, 7:04pm UTC](https://forums.rockylinux.org/t/installing-the-prerequisites-for-ansys-fluent-breaks-the-abaqus-gui-on-rocky-linux-9-6/20804/1 "2026-09-17T19:04:14Z")
Posted about this earlier [here](https://forums.rockylinux.org/t/abaqus-gui-launches-without-any-fonts-for-the-menu-items-but-works-on-another-node-installed-fonts-seem-identical/20257) but had no luck finding the root cause. Now I was able to take a deeper dive and found the issue. If I install this prereqs for Ansys Fluent ( xorg-x11-fonts-75dpi ), then the Abaqus GUI breaks ( launches with missing fonts for all the text. See: [Untitled hosted at ImgBB — ImgBB](https://ibb.co/svFmdtZc) ) Is it an Ansys or Simulia issue? I can open ticket with the vendors but hoping there’s an easy fix. Surely I am not the only HPC to be running Fluent and Abaqus on Rocky Linux 9.6. ---
**Author:** ![segmentation\_fault](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@segmentation\_fault](https://forums.rockylinux.org/u/segmentation_fault)\ **Post date:** [September 22, 2026, 3:23pm UTC](https://forums.rockylinux.org/t/installing-the-prerequisites-for-ansys-fluent-breaks-the-abaqus-gui-on-rocky-linux-9-6/20804/2 "2026-09-22T15:23:52Z")
I reached out to Ansys and they said to just remove the xorg-x11-fonts-75dpi library. I did that and confirmed both Abaqus and Fluent GUI launch ok !