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From: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
Subject: Re: KMScon vs. AMD Radeon
Date: Sat, 6 Apr 2019 13:03:17 +0200
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To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: Guix-devel <guix-devel@gnu.org>, Mathieu Othacehe <m.othacehe@gmail.com>, Pierre Neidhardt <ambrevar@gmail.com>

On Sat, Apr 06, 2019 at 11:05:43AM +0200, Danny Milosavljevic wrote:
> Hi,
>=20
> On Thu, 4 Apr 2019 18:07:48 +0200
> "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de> wrote:
>=20
> > I got exactly the same result on my grandma=E2=80=99s 10-years-old la=
ptop.  I
> > just found out it is using an old AMD GPU too (AMD RS780M).
>=20
> :(
>=20
> What does
>=20
>   readlink /sys/class/drm/card0/subsystem
>=20
> say after passing "nomodeset" to the kernel ?
>=20
> Does it still say "drm" ?
>=20
>=20

There is no card0.  There is only ttm and version.

readlink /sys/class/drm/card0/subsystem

gives no output at all.

readlink /sys/class/drm/ttm/subsystem

gives

../../../../class/drm



> Other than that, it might help to update the system bios, but that's a =
shitty workaround.
>=20


That would not be an acceptable workaround IMO.

Thank you for all your work!