[SOLVED] Debian Unstable and multiple gpus (mobo integrated xpress200 and PCI Radeon 7000)

umb · 12-23-2014, 06:52 AM

I've been running Debian Unstable on my familiar desktop for a quite long time now and nothing happened, but yesterday i decided to do an "upgrade", founding a Radeon 7000 that none wanted, so i picked it. Inserted, i had all the packages required because i have a Xpress200 integrated graphics but no /etc/X11/xorg.conf generated. So i logged in as single root user,

Code:

# Xorg -configure

and copied the /root/xorg.conf.new in /etc/X11.conf, leaving a few backup files around. I only have a monitor but the xorg.conf file says, if I'm correct, that i have two monitors, which 0 is the real one, and 1 that is supposedly at the right of the monitor 0, and the Radeon 7000 outputs in monitor 1 that doesn't exists!

The vga is correctly detected

Code:

umberts@degenero:~$ lspci -nn | grep VGA
01:05.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RS480 [Radeon Xpress 200 Series] [1002:5954]
02:02.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV100 [Radeon 7000 / Radeon VE] [1002:5159]
umberts@degenero:~$

But xrandr only detects vga0 and monitor0

Code:

umberts@degenero:~$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 370mm x 222mm
   1024x768      60.00*+  75.08    70.07  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   640x480       75.00    72.81    66.67    60.00  
   720x400       70.08  
umberts@degenero:~$

If i move the vga cable from the mobo port to the new vga port the screen stays black with no source available.

I've ran out of clues, maybe someone hasn't! Thanks for reply in advance

EDDY1 · 12-24-2014, 12:00 AM

Quote:

and copied the /root/xorg.conf.new in /etc/X11.conf,

It should've been copied to /etc/X11/xorg.conf, but maybe you just have a typo in your post, please verify.
Also what DE?

umb · 12-24-2014, 05:14 AM

Quote:

Originally Posted by EDDY1

It should've been copied to /etc/X11/xorg.conf, but maybe you just have a typo in your post, please verify.
Also what DE?

Yup, just a typo. DE is XFCE 4.10 and i have an update: went in the BIOS and changed the main graphics adapter from Onboard to PCI, Grub and init 1 mode successfully showed but when Xorg started nothing happened, just the _ on the left upper corner of the screen. I guess there's something that i have to tweak in /etc/X11/xorg.conf ?

Head_on_a_Stick · 12-24-2014, 02:32 PM

Generally speaking, the X server auto-configures these days.

In the case of ATI cards, you need an xorg.conf to specify the use of the fglrx driver but not for anything else.

Try removing the generated xorg.conf and replace it with something like this:
https://wiki.debian.org/ATIProprietary#configure

umb · 12-27-2014, 04:31 AM

Quote:

Originally Posted by Head_on_a_Stick

Generally speaking, the X server auto-configures these days.

In the case of ATI cards, you need an xorg.conf to specify the use of the fglrx driver but not for anything else.

Try removing the generated xorg.conf and replace it with something like this:
https://wiki.debian.org/ATIProprietary#configure

Well i tried removing all the xorg.conf files i had and switched the default graphic adapter to PCI and it works, still need to test 3d performance but it can be considered as resolved, thanks!

EDDY1 · 12-27-2014, 12:02 PM

If this is a desktop you have to enable the graphics card in bios.