From mboxrd@z Thu Jan  1 00:00:00 1970
From: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
Subject: Re: KMScon vs. AMD Radeon
Date: Sat, 20 Apr 2019 10:59:21 +0200
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To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: Guix-devel <guix-devel@gnu.org>, Mathieu Othacehe <m.othacehe@gmail.com>, Pierre Neidhardt <ambrevar@gmail.com>

On Fri, Apr 19, 2019 at 07:11:17PM +0200, pelzflorian (Florian Pelz) wrot=
e:
> The important remaining issue is that Xorg does not start on this
> computer.  Neither the radeon nor fbdev and not even vesa works, for
> whatever reason.  fbdev apparently is not supported.  VESA might be a
> fixable bug (it displays =E2=80=9C(EE) VESA(0): Cannot read int vect=E2=
=80=9D like
> <https://bugs.launchpad.net/xserver-xorg-driver-vesa/+bug/1432899>).
> On other AMD GPUs the results may be more successful.  I have not
> tried other free distributions on this PC yet.
>=20

fbdev works for Xorg on the AMD GPU on Trisquel and Debian with
800x600 resolution at 75 Hz refresh rate.  It displays: =E2=80=9C(=3D=3D)=
 Depth 24
pixmap format is 32 bpp=E2=80=9D.

Perhaps the Guix config for fbdev is wrong.  I do not find a fbdev
configuration in xorg.conf.d, but I find none on Debian either.  This
is strange.

Regards,
Florian