On 2021-01-31 7:47 p.m., Johannes Brakensiek wrote:
I checked the xorg config - there is none. I blacklisted the nouveau
module, made a new ramfs, installed grub and so on. But the boot process
hangs at the point where the radeon module is loaded. With „nomodeset“
and having the NVidia card connected it gives the error message about
missing UMS/KMS at the point (and boots). So I’d expect driver
loading/mode setting to happen there, but it does not.
Any helpful idea out there?
Is the firmware-amd-graphics / firmware-linux-nonfree package installed?
If yes, I'd suggest booting with
modprobe.blacklist=radeon
on the kernel command line (this will prevent the radeon kernel driver
from getting loaded automatically). Then once the system is booted up,
log in via SSH and run
sudo modprobe radeon
This way you should be able to capture dmesg output from loading the
radeon driver.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
