[Graphics] Random Graphical Glitches and Display Dropouts

[questionlp]

In more recent versions of the Linux kernel, 6.11 in particular, experience random display dropouts that last for less than a second or graphical glitches and corruption appear (either a small line to a sizeable portion of the screen). This seems to be due to issues with the AMD Radeon GPU drivers included in the kernel.

[questionlp]

One potential fix is to add a kernel argument to the respective kernel boot entries in Grub. The argument that needs to be added is: amdgpu.dcdebugmask=0x10.

To add the argument to all kernel entries, you can use the grubby command as shown below:

sudo grubby --update-kernel=ALL --args="amdgpu.dcdebugmask=0x10"

[questionlp]

The amdgpu.dcdebugmask=0x10 kernel argument did not seem to reduce the graphical glitches nor provided enough information. Instead, Framework provides a fix:

sudo grubby --update-kernel=ALL --args="amdgpu.sg_display=0"

To remove the amdgpu.dcdebugmask=0x10 argument and add the amdgpu.sg_display=0 argument in one fell swoop, run:

sudo grubby --update-kernel=ALL --args="amdgpu.sg_display=0" --remove-args="amdgpu.dcdebugmask=0x10"