Re: f25 and ATI graphic cards

[François Patte]

Le 27/03/2017 09:30, Samuel Sieb a écrit :
>  On 03/26/2017 01:42 AM, François Patte wrote:
> > Does anyone know how to get rid of this:
> >
> > [drm:atom_op_jump [radeon]] *ERROR* atombios stuck ......
> > [drm:atom_execute_table_locked [radeon]] *ERROR* atombios stuck....
> >
> > and some other messages
> >
> > Sometimes it takes ages before shutdown
> >
> > I could see that many people have this problem since several years (not
> > only with fedora: debian, ubuntu.... also)
> >
>  It appears to be often related to hybrid graphics.  Is that the case here? 
I don't know what exactly is a hybrid graphics... Do you mean that there
are two graphic cards? It the case as far I can see:

lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
returns:

00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core
Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if
00 [VGA controller])
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Mars XTX [Radeon HD 8790M] [1002:6606] (rev ff) (prog-if ff)

So, I can see that the integrated graphic card is in use, not the ATI card.

I have two questions:
1- How to activate the ATI graphic card? This card is supported by linux
for I bought that computer from Dell with ubuntu installed to be sure
that the hardware is linux compatible and the ATI graphic was configured.

2- Why, as the ATI card is not in use, the radeon module is loaded by
the kernel?

-- 
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. [phone]
http://www.math-info.univ-paris5.fr/~patte