Comment # 36 on bug 1177428 from Christian Hartmann

Created attachment 842496 [details]
dmesg output

(In reply to Takashi Iwai from comment #28)
> (In reply to Christian Hartmann from comment #27)
> > Downgrading the kernel-firmware-amdgpu package fixed the issue.
> 
> Could you give dmesg output with "firmware_class.dyndbg=+p" boot option, too?
> We need to check which firmware is involved.
> 
> In the case of Karl, it was amdgpu/picasso*.

I've uploaded my dmesg output... And yes, it also looks like picasso...