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Latest comment: 13 September by Richardm in topic EGL device selection

mesa bug effecting 'Ryzen APU's Raven gfx9'

Considering the mesa bug effecting 'Ryzen APU's Raven gfx9' and patched packages being discussed here, https://bbs.archlinux.org/viewtopic.php?pid=2227172#p2227172 should we consider mentioning it in the 'Install' section with a link pointing to the packages? https://bbs.archlinux.org/viewtopic.php?pid=2227056#p2227056 Weezer (talk) 21:13, 18 February 2025 (UTC)Reply

It's a good thought, but not suitable for the section. Once it manifests itself into a longer running bug report that needs tracking, it could be described in OpenGL#Development and linked down from OpenGL#Installation. Meanwhile simply keeping this talk item open may also help. --Indigo (talk) 22:26, 18 February 2025 (UTC)Reply

EGL device selection

Should we mentionGBM_BACKEND=dri vs. GBM_BACKEND=nvidia-drm? I have an amdgpu (primary/card0) + nvidia (card1) system where eglinfo along with several apps try to initialize the nvidia and fail (bc it's dedicated to CUDA/LLM thus not fully configured as display device). The error in eglinfo was eglinfo: eglInitialize failed.

The usual environment variables (e.g. DRI_PRIME, __GLX_VENDOR_LIBRARY_NAME, MESA_LOADER_DRIVER_OVERRIDE et al) were totally ignored. Setting the [previously unset]GBM_BACKEND=dri is the only functional fix I've found. Richardm (talk) 11:27, 13 September 2026 (UTC)Reply