Textures glitch in openg AMD IGPU

**dnikic** · May 30th, 2020

Upon opening most 3D games i encounter some sort of graphical glitches relating textures on Ideapad S145.
The same problem was present back from Ubuntu 18.04 and still is.
I've provided two example glitches in a picture below.

glitches.png

OS: Ubuntu 20.04 LTS x86_64
Kernel: 5.4.0-33-generic
Processor: AMD® Ryzen 3 3200u with radeon vega mobile gfx × 4
DE: Gnome 3.36.2
Windowing system: X11
Ram memory: 5,7 GiB (8gb total for System Ram and iGPUVram)
OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.0.4
Vulkan Instance Version: 1.2.131

Code:

  
*-display                 
       description: VGA compatible controller
       product: Picasso
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:03:00.0
       version: c4
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi msix vga_controller bus_master cap_list
       configuration: driver=amdgpu latency=0
       resources: irq:55 memory:c0000000-cfffffff memory:d0000000-d01fffff ioport:1000(size=256) memory:d0600000-d067ffff

**Perfect Storm** · May 30th, 2020

Have you tried with Option “TearFree” “on” in the x org config file?

**dnikic** · May 30th, 2020

I haven't attempted to edit the x11 config, but using wayland instead of x11 didn't fix the issue.

**dnikic** · August 9th, 2020

FIXED

Source
It was a mesa bug:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/2814

The fix
created file:
sudo nano /etc/environment.d/mesa.conf
pasted in:
AMD_DEBUG=nodmacopyimage