RESOLVED:Multi screen and graphics cards failed with stretch

Getting your soundcard to work, using Debian on non-i386 hardware, etc

RESOLVED:Multi screen and graphics cards failed with stretch

Postby Pbas » 2017-06-22 16:29

Hello,
On debian previous version (jessie) I managed to use my 3 screen on KDE but since stretch update, my conf doesn't work anymore.
If anyone could help me?

My configuration
Code: Select all
Ecran 1 (DVI) -- Ecran 2 (VGA) -            - Ecran 3 (VGA)
|                            |         |                       |
|____________________________|         |_______________________|
     Card : Radeon X1550 64-bits         Card : Radeon 3000
     Resolution : Screen 1: 1680x1050    Resolution : Both 1280x1024
                  Screen 2: 1024x768

What I already tried

First I found this link http://nouveau.freedesktop.org/wiki/MultiMonitorDesktop with nouveau driver but nouveau doesn't work at all with my cards.

I'm freely inspired by this post: https://bbs.archlinux.org/viewtopic.php?id=143690.

Actually the better I managed is to use 2 screens from my Radeon X1550 64-bits graphics card with this xorg.conf (I commented one line with driver "radeon")

Code: Select all
Section "ServerLayout"
    Identifier  "Layout0"
    Option      "Xinerama" "on"
    Option      "Clone"    "on"
    # You would need one screen for each monitor
    Screen   0  "Screen0" 0 0
    Screen   1  "Screen1"  LeftOf "Screen0"
    Screen   2  "Screen2"  RightOf "Screen0"

EndSection
Section "Device"
    Identifier  "Device0"
# if ucommented X server failed with segmentation fault:
# Driver      "radeon"
    # Actual PCI location of first card/gpu
    BusID       "PCI:2:0:0"
    Screen      0
EndSection
Section "Device"
    Identifier  "Device1"
    Driver      "radeon"
    BusID       "PCI:2:0:1"
    Screen      0
EndSection
Section "Device"
    Identifier  "Device2"
    Driver      "radeon"
    BusID       "PCI:1:5:0"
    Screen      0
EndSection
Section "Screen"
    Identifier  "Screen0"
    Device      "Device0"
    Monitor     "Monitor0"
    DefaultDepth    24
    SubSection "Display"
      Depth       24
      Modes       "1680x1050"
   EndSubSection
EndSection
Section "Screen"
    Identifier  "Screen1"
    Device      "Device1"
    Monitor     "Monitor1"
    DefaultDepth    24
    SubSection "Display"
      Depth       24
      Modes       "1024x768"
   EndSubSection
EndSection
Section "Screen"
    Identifier  "Screen2"
    Device      "Device2"
    Monitor     "Monitor2"
    DefaultDepth    24
    SubSection "Display"
      Depth       24
      Modes       "1280x1024"
    EndSubSection
EndSection
Section "Monitor"
    Identifier     "Monitor0"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
EndSection

Section "Monitor"
    Identifier     "Monitor2"
EndSection



Code: Select all
# lspci |grep VGA
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS780L [Radeon 3000]
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV505 [Radeon X1550 64-bit]

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x99 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 3 associated providers: 0 name:ATI Radeon X1550 64-bit @ pci:0000:02:00.0
Provider 1: id: 0x53 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 2 associated providers: 0 name:ATI Radeon 3000 Graphics @ pci:0000:01:05.0




if I activate xinerama and set "radeon" driver on first graphic card (like I used on Jessie), X server crash with segmentation fault.
If I set "radeon" driver for my 2 graphics cards then I must deactivate xinerama option and I can use only 2 screen from my graphics cards and xrandr :?


Any help will be welcome (or a nice site to obtain help :-).

Thxs
Pascal B
Last edited by Pbas on 2017-07-03 08:15, edited 1 time in total.
Pbas
 
Posts: 9
Joined: 2010-05-19 16:45

Re: Multi screen and graphics cards failed with stretch

Postby Pbas » 2017-07-03 08:14

Here the solution that Michel Dänzer gave me (using xrandr withoout xorg.conf):
http://www.mail-archive.com/xorg-driver ... 28520.html
Pbas
 
Posts: 9
Joined: 2010-05-19 16:45


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