12-02-2021, 05:37 PM
I wrote a larger post explaining in more detail just now, but it still needs to be approved. I managed to get GPU support working properly in Debian's 5.10 and 5.14 kernels, by fixing a missing dependency-issue.
Create a file `/etc/modprobe.d/panfrost.conf`:
Then run `sudo update-initramfs -u` to make this config file part of the initrd file, i.e. part of early boot.
Without this, `dmesg` shows that it repeatedly tries loading 'panfrost' and failing. I can only get it to load after Xorg and my desktop are loaded. And then I would need to restart the desktop manager to make GLX/acceleration/DRI work. If you do this, you should see Mesa Panfrost support in `glxinfo`.
Create a file `/etc/modprobe.d/panfrost.conf`:
Code:
softdep panfrost pre: governor_simpleondemand
Without this, `dmesg` shows that it repeatedly tries loading 'panfrost' and failing. I can only get it to load after Xorg and my desktop are loaded. And then I would need to restart the desktop manager to make GLX/acceleration/DRI work. If you do this, you should see Mesa Panfrost support in `glxinfo`.