Description of problem: Using Blender on Fedora 35 is strongly impacted and unusable for some Intel hardware. The problem is described here: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5782 And resolution is here: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5731 Version-Release number of selected component (if applicable): 21.3.3 How reproducible: Always... Steps to Reproduce: Open Blender and use 3rd button to rotate the view, the UI is flickering Actual results: UI is flickering Expected results: UI should be stable Additional info: I tried the patch on SRPM and rebuilt it. It's only 1 line of code that impacts ASYNC directive on Iris drivers.
Applying the patch found at https://gitlab.freedesktop.org/mesa/mesa/-/issues/5731#note_1205469 to mesa-21.3.3-1.fc35 fixes the issue of viewport flickering in Blender for me.
This bug also exists for some QtQuick applications and mpv in certain configurations (such as -profile gpu-hq).
The package was upgraded to 21.3.5 and Blender is now unusable again. I will try to reapply the patch to the new SRPM... It's extremely important to fix this please.
(In reply to Patrice FERLET from comment #3) > The package was upgraded to 21.3.5 and Blender is now unusable again. > > I will try to reapply the patch to the new SRPM... > > It's extremely important to fix this please. Sorry, I meant 21.3.4
Just patched 21.3.4 version - the patch fixes the problems.
Sorry about the slow response - I will try to get to this today
FEDORA-2022-d9c9d567ce has been submitted as an update to Fedora 35. https://bodhi.fedoraproject.org/updates/FEDORA-2022-d9c9d567ce
I saw similar artifacts with Qutebrowser, and can confirm that the artifacts disappear after installing the proposed build, without regressions. Thanks!
FEDORA-2022-d9c9d567ce has been pushed to the Fedora 35 stable repository. If problem still persists, please make note of it in this bug report.