3 Screens, two Dual-Head graphic cards

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3 Screens, two Dual-Head graphic cards

Postby umizon on Sun Jan 25, 2009 8:12 am

My monitor installation:
    ATI Gainward HD4850, PCI-E x16 - Two 22" Widescreen Monitors (DVI)
    ATI Saphire HD3650, PCI-E x16 - One 22" Widescreen Monitor (DVI)
aticonfig --list-adapters shows:
Code: Select all
* 0. 01:00.0 ATI Radeon HD 3600 Series
  1. 02:00.0 ATI Radeon HD 4800 Series

With the radeonhd driver one (the one connected to the ATI HD3650) of three (the other two are just black and inactive) monitors works fine (except Compiz-Fusion) and I can't get the fglrx driver up and running, I've downloaded it from ATIs official site and installed it with following commands:

Code: Select all
sudo ati-driver-installer-8-12-x86.x86_64.run --buildpkg Ubuntu/8.10

sudo dpkg -i fglrx-kernel-source_8.561-0ubuntu1_i386.deb xorg-driver-fglrx_8.561-0ubuntu_i386.deb xorg-driver-fglrx-dev_0ubuntu1_i386.deb fglrx-modaliases_8.561-0ubuntu1_i386.deb libamdxvba1_8.561-0ubuntu1_i386.deb

sudo aticonfig --initial


Here's the /etc/X11/xorg.conf after the installation
Code: Select all
Section "ServerLayout"
        Identifier     "aticonfig Layout"
        Screen      0  "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Files"
EndSection

Section "Module"
EndSection

Section "Monitor"
        Identifier   "Configured Monitor"
EndSection

Section "Monitor"
        Identifier   "aticonfig-Monitor[0]-0"
        Option      "VendorName" "ATI Proprietary Driver"
        Option      "ModelName" "Generic Autodetecting Monitor"
        Option      "DPMS" "true"
EndSection

Section "Device"
        Identifier  "Configured Video Device"
        Option      "UseFBDev" "true"
        BusID       "PCI:1:0:0"
EndSection

Section "Device"
        Identifier  "aticonfig-Device[0]-0"
        Driver      "fglrx"
        BusID       "PCI:1:0:0"
EndSection

Section "Screen"
        Identifier "Default Screen"
        Device     "Configured Video Device"
        Monitor    "Configured Monitor"
EndSection

Section "Screen"
        Identifier "aticonfig-Screen[0]-0"
        Device     "aticonfig-Device[0]-0"
        Monitor    "aticonfig-Monitor[0]-0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection


Then I reboot the system and when the xserver should start, the only thing I can see are some strange purple pixel lines, not really the output I wanted :wink:
And if I wanna go into the console with Ctrl + Alt + F1, the system reboots.

I reboot now the system in to the recovery mode and choose the root prompt option and I edit the /etc/X11/xorg.conf
Code: Select all
Section "ServerLayout"
        Identifier     "aticonfig Layout"
        Screen      0  "Screen0" 0 0
        Screen         "Screen1" RightOf "Screen0"
        Screen         "Screen2" RightOf "Screen1"
EndSection

Section "Files"
EndSection

Section "Module"
EndSection

Section "Monitor"
        Identifier  "Monitor0"
        Option      "VendorName" "ATI Proprietary Driver"
        Option      "ModelName" "Generic Autodetecting Monitor"
        Option      "DPMS" "true"
EndSection

Section "Device"
        Identifier  "Device0"
        Driver      "fglrx"
        BusID       "PCI:1:0:0"
EndSection

Section "Device"
        Identifier  "Device1"
        Driver      "fglrx"
        BusID       "PCI:2:0:0"
        Screen 0
EndSection

Section "Device"
        Identifier  "Device2"
        Driver      "fglrx"
        BusID       "PCI:2:0:0"
        Screen 1
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Device0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "Device1"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen2"
        Device     "Device2"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection


After reboot, all Screens are black and inactive (except the one connected to the ATI HD3650, is active) but on the monitor that worked before I can go into the console with Ctrl + Alt + F1.

Does anyone know what I'm doing wrong, is it even possible in Linux to use two graphic cards with dual-head?
(Sorry for the strange english, my native language is german. Hope you understand it :D )
thanking you in anticipation
umizon
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Re: 3 Screens, two Dual-Head graphic cards

Postby Husse on Sat Jan 31, 2009 3:24 pm

This is an odd setup (no offence meant :)) and it's the first time I bump into it
You did not tell us which Mint you have but regardless of that I'd recommend that you let envy uninstall the driver and then install it again - envy is good at that
In Elyssa you find Envy in the menu in Felicia you have to start it from the terminal or a launcher (Alt+F2)
The command is envyng -t
Also xinerama may help you (you find it in synaptic)
Image
Don't fix it if it ain't broken, don't break it if you can't fix it
Husse
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Location: Near Borås Sweden


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