Re: Radeon 5700 XT: Wayland/X11 not using amdgpu

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> On Jul 2, 2020, at 1:55 PM, Richard Shaw <hobbes1069@xxxxxxxxx> wrote:
> 
> On Thu, Jul 2, 2020 at 12:14 PM Braden McDaniel <braden@xxxxxxxxxxxxx> wrote:
> 
> # cat /proc/cmdline
> BOOT_IMAGE=(hd1,gpt2)/vmlinuz-5.7.6-201.fc32.x86_64 root=UUID=cbcfb536-a8c8-4f79-8efd-60bec46d8a39 ro resume=UUID=9c3b9288-3bec-4565-8edc-c2083d05e51d nomodeset rhgb quiet
> 
> This looks suspicious:
> 
> Jul 02 02:25:34 mull kernel: [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu kernel modesetting.
> 
> Same thing a few seconds later:
> 
> Jul 02 02:25:39 mull kernel: [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu kernel modesetting.
> 
> Just a guess based on this thread (I have no extra knowledge about the amd drivers) but it looks like the driver requires mode setting, but you've explicitly disabled it on the kernel command line (nomodeset).
> 
> Instead of changing it and regenerating the kernel parameters, I would try just editing it during grub boot and remove the "nomodeset" and see what happens.

Yep, that was it.  Thanks!

For the record, *I* didn’t add “nomodeset” to the kernel command line; the Fedora install did that.  Maybe you get that when installing with the “basic graphics” installer?

-- 
Braden McDaniel
<braden@xxxxxxxxxxxxx>


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