Re: [gentoo-user] New install - Wayland and graphical login

[Michael <confabulate@kintzios.com>]

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On Sunday, 27 June 2021 10:05:59 BST Wols Lists wrote:
> On 21/06/21 16:17, Michael wrote:
> > Have you tried using a Display Manager?  Some of my systems won't work
> > with
> > Wayland, but I haven't spent time to find out why all I get with them is a
> > black screen.
> > 
> > Anyway, from a VT you'd run something like:
> > 
> > XDG_SESSION_TYPE=wayland dbus-run-session startplasma-wayland
> 
> Okay, we're slowly moving forward ...
> 
> My first attempt got the error "kwin-plasma won't run as root" or
> somesuch. Created a new user for me, and promptly got a black screen!

You're meant to be running X11 as a non-root user.


> As I said earlier, X currently won't run. I've got a Asus EAH4350, and
> am loading the Radeon driver.

I am not familiar with the model and any APU/graphics options it may be 
furnished with.  You have not shared what the video card might be.  A quick 
search on the interwebs mention an AMD R700 family, HD4350 card.  According 
to:

https://wiki.gentoo.org/wiki/Radeon

such a card requires in your make.conf:

VIDEO_CARDS="radeon r600"

emerge 'sys-kernel/linux-firmware' and in your kernel specify the following 
firmware:

radeon/R600_rlc.bin radeon/RS780_uvd.bin radeon/RS780_pfp.bin radeon/
RS780_me.bin


> When I looked at the X log it was clearly
> loading the driver, which failed with something like "cannot find
> /dev/card1". If that gives anyone any clues where to point me that's
> great, or I'll transfer the logs to this machine and post them.
> 
> Cheers,
> Wol

dmesg will show if there is any problem with the kernel missing modules, or 
having problems loading firmware;

/var/log/Xorg.0.log will show what problems X11 comes up with when it tries to 
launch.

Normally /dev/dri/card0 is the first card being loaded:

$ grep -i card /var/log/Xorg.0.log
[    37.111] (II) xfree86: Adding drm device (/dev/dri/card0)
[    37.148] (II) xfree86: Adding drm device (/dev/dri/card1)
[    38.366] (II) Applying OutputClass "Radeon" to /dev/dri/card0
[    38.367] (II) Applying OutputClass "Radeon" to /dev/dri/card1


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