heavy glitches on amd ryzen 5 since version 20.x
System information
- OS: Arch Linux
- GPU: [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev c6)
- Kernel version: Linux arch 5.4.33-3-lts x86_64
- Mesa version: 4.6 (Compatibility Profile) Mesa 20.0.4
- Xserver version (if applicable): X.Org X Server 1.20.8
- Desktop manager and compositor: XFCE4 / no compositor
Describe the issue
All the untextured uniform-colored surfaces are filled with random data from gpu memory, the pattern changes at every framebuffer refresh. Textured surfaces are fine. You can see in the steam and glxgears screenshots attached.
On windows the GPU works fine, so i'm excluding hardware faults. Tried lts and bleeding edge kernels, no difference.
Regression
Mesa 19.x branch works fine.