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Reload this Page [SOLVED] Running Fedora 14 on 4 screens
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Old 12-20-2010, 04:39 AM   #1
ChaPat
LQ Newbie
 
Registered: Mar 2007
Location: Switzerland
Distribution: Fedoras core 6.0
Posts: 7

Rep: Reputation: 0
Running Fedora 14 on 4 screens

Hello,

I am trying running Fedora 14 on a computer with 2 NVIDIA cards (each dualheads) so I should have 4 screens. The video cards are one GeForce GT9500 on a port PCIe 16x and the second card is one GeForce GT9500 on a port PCIe 1x. I choose both card with the same chipset. I can drive each video card separatly with two screens but I can not run both cards together. When I try having 4 screens, the following message is into the file /var/log/Xorg.0.log:
Code:
[    84.443] 
X.Org X Server 1.9.0
Release Date: 2010-08-20
[    84.443] X Protocol Version 11, Revision 0
[    84.443] Build Operating System: x86-05 2.6.32-72.el6.bz634452.x86_64 
[    84.443] Current Operating System: Linux testpc.fa18samt.ch 2.6.35.6-45.fc14.i686 #1 SMP Mon Oct 18 23:56:17 UTC 2010 i686
[    84.444] Kernel command line: ro root=UUID=f0f94192-6abd-46b2-b832-36f2f3fcfe21 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=fr_CH-latin1 nomodeset rhgb quiet
[    84.444] Build Date: 13 October 2010  03:29:59PM
[    84.444] Build ID: xorg-x11-server 1.9.0-15.fc14 
[    84.455] Current version of pixman: 0.18.4
[    84.455] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[    84.456] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    84.457] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Dec 20 09:48:14 2010
[    84.485] (==) Using config file: "/etc/X11/xorg.conf"
[    84.485] (==) Using config directory: "/etc/X11/xorg.conf.d"
[    84.485] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    84.546] (==) ServerLayout "Default Layout"
[    84.546] (**) |-->Screen "Screen0" (0)
[    84.546] (**) |   |-->Monitor "Monitor0"
[    84.546] (**) |   |-->Device "Device0"
[    84.546] (**) |-->Screen "Screen1" (1)
[    84.546] (**) |   |-->Monitor "Monitor1"
[    84.546] (**) |   |-->Device "Device1"
[    84.546] (**) |-->Input Device "Keyboard0"
[    84.546] (**) |-->Input Device "Mouse0"
[    84.546] (**) Option "Xinerama" "0"
[    84.546] (==) Automatically adding devices
[    84.546] (==) Automatically enabling devices
[    84.547] (==) FontPath set to:
	catalogue:/etc/X11/fontpath.d,
	built-ins
[    84.547] (==) ModulePath set to "/usr/lib/xorg/modules"
[    84.547] (WW) AllowEmptyInput is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[    84.547] (WW) Disabling Keyboard0
[    84.547] (WW) Disabling Mouse0
[    84.547] (II) Loader magic: 0x81fac2c
[    84.548] (II) Module ABI versions:
[    84.548] 	X.Org ANSI C Emulation: 0.4
[    84.548] 	X.Org Video Driver: 8.0
[    84.548] 	X.Org XInput driver : 11.0
[    84.548] 	X.Org Server Extension : 4.0
[    84.550] (--) PCI:*(0:1:0:0) 10de:0640:10de:0551 rev 161, Mem @ 0xf8000000/16777216, 0xc0000000/268435456, 0xf6000000/33554432, I/O @ 0x0000ac00/128, BIOS @ 0x????????/524288
[    84.550] (--) PCI: (0:5:0:0) 10de:0640:0000:0000 rev 161, Mem @ 0xfd000000/16777216, 0xd0000000/268435456, 0xfa000000/33554432, I/O @ 0x0000ec00/128, BIOS @ 0x????????/524288
[    84.550] (II) LoadModule: "extmod"
[    84.596] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[    84.605] (II) Module extmod: vendor="X.Org Foundation"
[    84.605] 	compiled for 1.9.0, module version = 1.0.0
[    84.605] 	Module class: X.Org Server Extension
[    84.605] 	ABI class: X.Org Server Extension, version 4.0
[    84.605] (II) Loading extension SELinux
[    84.605] (II) Loading extension MIT-SCREEN-SAVER
[    84.605] (II) Loading extension XFree86-VidModeExtension
[    84.605] (II) Loading extension XFree86-DGA
[    84.605] (II) Loading extension DPMS
[    84.605] (II) Loading extension XVideo
[    84.605] (II) Loading extension XVideo-MotionCompensation
[    84.605] (II) Loading extension X-Resource
[    84.605] (II) LoadModule: "dbe"
[    84.605] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[    84.606] (II) Module dbe: vendor="X.Org Foundation"
[    84.606] 	compiled for 1.9.0, module version = 1.0.0
[    84.606] 	Module class: X.Org Server Extension
[    84.606] 	ABI class: X.Org Server Extension, version 4.0
[    84.606] (II) Loading extension DOUBLE-BUFFER
[    84.606] (II) LoadModule: "glx"
[    84.606] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    84.962] (II) Module glx: vendor="NVIDIA Corporation"
[    84.962] 	compiled for 4.0.2, module version = 1.0.0
[    84.962] 	Module class: X.Org Server Extension
[    84.962] (II) NVIDIA GLX Module  260.19.29  Wed Dec  8 12:25:40 PST 2010
[    84.962] (II) Loading extension GLX
[    84.962] (II) LoadModule: "record"
[    84.963] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[    84.966] (II) Module record: vendor="X.Org Foundation"
[    84.966] 	compiled for 1.9.0, module version = 1.13.0
[    84.966] 	Module class: X.Org Server Extension
[    84.966] 	ABI class: X.Org Server Extension, version 4.0
[    84.966] (II) Loading extension RECORD
[    84.966] (II) LoadModule: "dri"
[    84.966] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so
[    84.979] (II) Module dri: vendor="X.Org Foundation"
[    84.979] 	compiled for 1.9.0, module version = 1.0.0
[    84.979] 	ABI class: X.Org Server Extension, version 4.0
[    84.979] (II) Loading extension XFree86-DRI
[    84.979] (II) LoadModule: "dri2"
[    84.980] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[    84.980] (II) Module dri2: vendor="X.Org Foundation"
[    84.980] 	compiled for 1.9.0, module version = 1.2.0
[    84.980] 	ABI class: X.Org Server Extension, version 4.0
[    84.980] (II) Loading extension DRI2
[    84.980] (II) LoadModule: "nvidia"
[    84.981] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[    85.027] (II) Module nvidia: vendor="NVIDIA Corporation"
[    85.027] 	compiled for 4.0.2, module version = 1.0.0
[    85.027] 	Module class: X.Org Video Driver
[    85.029] (II) NVIDIA dlloader X Driver  260.19.29  Wed Dec  8 12:10:28 PST 2010
[    85.030] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[    85.030] (--) using VT number 7

[    85.048] (II) Loading sub module "fb"
[    85.048] (II) LoadModule: "fb"
[    85.048] (II) Loading /usr/lib/xorg/modules/libfb.so
[    85.060] (II) Module fb: vendor="X.Org Foundation"
[    85.060] 	compiled for 1.9.0, module version = 1.0.0
[    85.060] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    85.060] (II) Loading sub module "wfb"
[    85.060] (II) LoadModule: "wfb"
[    85.060] (II) Loading /usr/lib/xorg/modules/libwfb.so
[    85.063] (II) Module wfb: vendor="X.Org Foundation"
[    85.063] 	compiled for 1.9.0, module version = 1.0.0
[    85.063] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    85.063] (II) Loading sub module "ramdac"
[    85.063] (II) LoadModule: "ramdac"
[    85.063] (II) Module "ramdac" already built-in
[    85.066] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[    85.066] (==) NVIDIA(0): RGB weight 888
[    85.066] (==) NVIDIA(0): Default visual is TrueColor
[    85.066] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[    85.066] (**) NVIDIA(0): Option "TwinView" "0"
[    85.066] (**) NVIDIA(0): Option "MetaModes" "CRT-0: nvidia-auto-select +0+0"
[    85.067] (**) NVIDIA(0): Option "TwinViewXineramaInfoOrder" "CRT-0"
[    85.067] (**) NVIDIA(0): Enabling RENDER acceleration
[    85.068] (II) NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
[    85.068] (II) NVIDIA(0):     enabled.
[    86.646] (II) NVIDIA(0): NVIDIA GPU GeForce 9500 GT (G96) at PCI:1:0:0 (GPU-0)
[    86.646] (--) NVIDIA(0): Memory: 524288 kBytes
[    86.646] (--) NVIDIA(0): VideoBIOS: 62.94.28.00.00
[    86.646] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[    86.646] (--) NVIDIA(0): Interlaced video modes are supported on this GPU
[    86.646] (--) NVIDIA(0): Connected display device(s) on GeForce 9500 GT at PCI:1:0:0
[    86.646] (--) NVIDIA(0):     Samsung S/M 900NF (CRT-0)
[    86.646] (--) NVIDIA(0):     Philips 190S (CRT-1)
[    86.646] (--) NVIDIA(0): Samsung S/M 900NF (CRT-0): 400.0 MHz maximum pixel clock
[    86.646] (--) NVIDIA(0): Philips 190S (CRT-1): 400.0 MHz maximum pixel clock
[    86.649] (II) NVIDIA(0): Display Device found referenced in MetaMode: CRT-0
[    86.661] (II) NVIDIA(0): Assigned Display Device: CRT-0
[    86.661] (II) NVIDIA(0): Validated modes:
[    86.661] (II) NVIDIA(0):     "CRT-0:nvidia-auto-select+0+0"
[    86.661] (II) NVIDIA(0): Virtual screen size determined to be 1280 x 1024
[    86.684] (--) NVIDIA(0): DPI set to (90, 96); computed from "UseEdidDpi" X config
[    86.684] (--) NVIDIA(0):     option
[    86.730] (==) NVIDIA(0): Enabling 32-bit ARGB GLX visuals.
[    86.730] (**) NVIDIA(1): Depth 24, (--) framebuffer bpp 32
[    86.730] (==) NVIDIA(1): RGB weight 888
[    86.730] (==) NVIDIA(1): Default visual is TrueColor
[    86.730] (==) NVIDIA(1): Using gamma correction (1.0, 1.0, 1.0)
[    86.730] (**) NVIDIA(1): Option "TwinView" "0"
[    86.730] (**) NVIDIA(1): Option "MetaModes" "CRT-1: nvidia-auto-select +0+0"
[    86.730] (**) NVIDIA(1): Enabling RENDER acceleration
[    86.730] (II) NVIDIA(1): NVIDIA GPU GeForce 9500 GT (G96) at PCI:1:0:0 (GPU-0)
[    86.730] (--) NVIDIA(1): Memory: 524288 kBytes
[    86.730] (--) NVIDIA(1): VideoBIOS: 62.94.28.00.00
[    86.730] (II) NVIDIA(1): Detected PCI Express Link width: 16X
[    86.730] (--) NVIDIA(1): Interlaced video modes are supported on this GPU
[    86.730] (--) NVIDIA(1): Connected display device(s) on GeForce 9500 GT at PCI:1:0:0
[    86.730] (--) NVIDIA(1):     Samsung S/M 900NF (CRT-0)
[    86.730] (--) NVIDIA(1):     Philips 190S (CRT-1)
[    86.730] (--) NVIDIA(1): Samsung S/M 900NF (CRT-0): 400.0 MHz maximum pixel clock
[    86.730] (--) NVIDIA(1): Philips 190S (CRT-1): 400.0 MHz maximum pixel clock
[    86.733] (II) NVIDIA(1): Display Device found referenced in MetaMode: CRT-1
[    86.739] (II) NVIDIA(1): Assigned Display Device: CRT-1
[    86.739] (II) NVIDIA(1): Validated modes:
[    86.739] (II) NVIDIA(1):     "CRT-1:nvidia-auto-select+0+0"
[    86.739] (II) NVIDIA(1): Virtual screen size determined to be 1280 x 1024
[    86.743] (--) NVIDIA(1): DPI set to (85, 86); computed from "UseEdidDpi" X config
[    86.743] (--) NVIDIA(1):     option
[    86.743] (==) NVIDIA(1): Enabling 32-bit ARGB GLX visuals.
[    86.743] (--) Depth 24 pixmap format is 32 bpp
[    86.743] (II) NVIDIA: Using 768.00 MB of virtual memory for indirect memory access.
[    92.739] (EE) NVIDIA(GPU-1): Failed to initialize the NVIDIA GPU at PCI:5:0:0.  Please
[    92.739] (EE) NVIDIA(GPU-1):     check your system's kernel log for additional error
[    92.739] (EE) NVIDIA(GPU-1):     messages and refer to Chapter 8: Common Problems in the
[    92.739] (EE) NVIDIA(GPU-1):     README for additional information.
[    92.739] (EE) NVIDIA(GPU-1): Failed to initialize the NVIDIA graphics device!
[    92.740] (II) NVIDIA(0): Initialized GPU GART.
[    92.751] (II) NVIDIA(0): Setting mode "CRT-0:nvidia-auto-select+0+0"
[    92.782] (II) Loading extension NV-GLX
[    92.805] (II) NVIDIA(0): Initialized OpenGL Acceleration
[    92.829] (==) NVIDIA(0): Disabling shared memory pixmaps
[    92.829] (II) NVIDIA(0): Initialized X Rendering Acceleration
[    92.829] (==) NVIDIA(0): Backing store disabled
[    92.829] (==) NVIDIA(0): Silken mouse enabled
[    92.835] (**) NVIDIA(0): DPMS enabled
[    92.835] (II) Loading extension NV-CONTROL
[    92.835] (II) Loading extension XINERAMA
[    92.835] (II) Loading sub module "dri2"
[    92.835] (II) LoadModule: "dri2"
[    92.836] (II) Reloading /usr/lib/xorg/modules/extensions/libdri2.so
[    92.836] (II) NVIDIA(0): [DRI2] Setup complete
[    92.836] (==) RandR enabled
[    92.837] (II) NVIDIA(1): Initialized GPU GART.
[    92.842] (II) NVIDIA(1): Setting mode "CRT-1:nvidia-auto-select+0+0"
[    92.936] (II) NVIDIA(1): Initialized OpenGL Acceleration
[    92.939] (==) NVIDIA(1): Disabling shared memory pixmaps
[    92.939] (II) NVIDIA(1): Initialized X Rendering Acceleration
[    92.939] (==) NVIDIA(1): Backing store disabled
[    92.939] (==) NVIDIA(1): Silken mouse enabled
[    92.942] (==) NVIDIA(1): DPMS enabled
[    92.942] (II) Loading sub module "dri2"
[    92.942] (II) LoadModule: "dri2"
[    92.943] (II) Reloading /usr/lib/xorg/modules/extensions/libdri2.so
[    92.943] (II) NVIDIA(1): [DRI2] Setup complete
...
My config file is as follow:
Code:
Section "ServerLayout"
    Identifier     "Default Layout"
    Screen      0  "Screen0" 0 0
    Screen      1  "Screen1" RightOf "Screen0"
    Screen         "Screen2" RightOf "Screen1"
    Screen         "Screen3" RightOf "Screen2"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "keyboard"
    Option         "XkbLayout" "fr_CH"
    Option         "XkbModel" "pc105"
EndSection

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Samsung S/M 900NF"
    HorizSync       30.0 - 110.0
    VertRefresh     50.0 - 160.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Philips 190S"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 76.0
EndSection

Section "Monitor"
    Identifier     "Monitor2"
    VendorName     "Unknown"
    ModelName      "Samsung S/M 900NF"
    HorizSync       30.0 - 110.0
    VertRefresh     50.0 - 160.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor3"
    VendorName     "Unknown"
    ModelName      "Philips 190S"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 76.0
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9500 GT"
    BusID          "PCI:1:0:0"
    Screen          0
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9500 GT"
    BusID          "PCI:1:0:0"
    Screen          1
EndSection

Section "Device"
    Identifier     "Device2"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9500 GT"
    BusID          "PCI:5:0:0"
    Screen          0
EndSection

Section "Device"
    Identifier     "Device3"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9500 GT"
    BusID          "PCI:5:0:0"
    Screen          1
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT-0: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "CRT-1: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen2"
    Device         "Device2"
    Monitor        "Monitor2"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT-0: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen3"
    Device         "Device3"
    Monitor        "Monitor3"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "CRT-1: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
The cards are recognized from the operating system with the command lspci as follow:
Code:
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4
00:1a.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5
00:1a.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6
00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller
00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1
00:1c.2 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 3
00:1c.3 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 4
00:1c.4 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 5
00:1c.5 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 6
00:1d.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1
00:1d.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2
00:1d.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3
00:1d.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
00:1f.0 ISA bridge: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller
00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port SATA IDE Controller #1
00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2
01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9500 GT] (rev a1)
02:00.0 Ethernet controller: Atheros Communications AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0)
03:00.0 SATA controller: JMicron Technology Corp. JMB361 AHCI/IDE (rev 02)
03:00.1 IDE interface: JMicron Technology Corp. JMB361 AHCI/IDE (rev 02)
04:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6315 Series Firewire Controller
05:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9500 GT] (rev a1)
Thus I use nvidia driver, I deactivate the nouveau driver by adding it into the /etc/modprobe.d/blacklist.conf as follow:
Code:
# watchdog drivers
blacklist i8xx_tco

# Video card driver
blacklist nouveau
option nouveau modeset=0

# framebuffer drivers
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist i810fb
blacklist cirrusfb
blacklist intelfb
blacklist kyrofb
blacklist i2c-matroxfb
blacklist hgafb
blacklist nvidiafb
blacklist rivafb
blacklist savagefb
blacklist sstfb
blacklist neofb
blacklist tridentfb
blacklist tdfxfb
blacklist virgefb
blacklist vga16fb
blacklist viafb

# ISDN - see bugs 154799, 159068
blacklist hisax
blacklist hisax_fcpcipnp

# sound drivers
blacklist snd-pcsp

# I/O dynamic configuration support for s390x (bz #563228)
blacklist chsc_sch
The file /var/log/dmesg indicates the followng lined for the video card:
Code:
...
[    0.145528] vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=io+mem,locks=none
[    0.145533] vgaarb: device added: PCI:0000:05:00.0,decodes=io+mem,owns=none,locks=none
[    0.145536] vgaarb: loaded
...
[    7.392020] nvidia: module license 'NVIDIA' taints kernel.
[    7.392023] Disabling lock debugging due to kernel taint
[    8.325612] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    8.325620] nvidia 0000:01:00.0: setting latency timer to 64
[    8.325625] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=io+mem
[    8.325627] vgaarb: transferring owner from PCI:0000:01:00.0 to PCI:0000:05:00.0
[    8.325760] nvidia 0000:05:00.0: enabling device (0000 -> 0003)
[    8.325763] nvidia 0000:05:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[    8.325776] nvidia 0000:05:00.0: setting latency timer to 64
[    8.325789] vgaarb: device changed decodes: PCI:0000:05:00.0,olddecodes=io+mem,decodes=none:owns=none
[    8.325922] NVRM: loading NVIDIA UNIX x86 Kernel Module  260.19.29  Wed Dec  8 12:09:09 PST 2010
[   10.068420] EXT4-fs (sda3): re-mounted. Opts: (null)
[   10.695305] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[   10.701933] SELinux: initialized (dev sda1, type ext4), uses xattr
[   11.468345] Adding 4095996k swap on /dev/sda2.  Priority:-1 extents:1 across:4095996k 
[   11.471055] SELinux: initialized (dev binfmt_misc, type binfmt_misc), uses genfs_contexts
I installed without any problem the driver from nvidia: NVIDIA-linux-x86-290.10.29.run

I try several things but I was not able running the 4 screens and I need some help. I have no solution at the moment. Could someone help finding the good way having 4 screens running?

Thanks in advance
Last edited by ChaPat; 12-20-2010 at 06:35 AM.
 
Old 01-09-2011, 09:49 PM   #2
crystalwave
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Registered: Nov 2009
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F-14 x 4 screens - Suggestion
Hi,
Done that before ...

Check out your xorg.conf - Both "Device" sections mention identical "BusID PCI:1:0:0".

Lookup VGA devices in your 'lspci' output log :
..
01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9500 GT] (rev a1)
..
05:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9500 GT] (rev a1)

Your second board shows up with PCI bus address '05:00.0'
=> "BusID PCI:5:0:0" should properly identify the second board within Device2 section

Cheers
 
Old 01-10-2011, 12:39 AM   #3
crystalwave
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Registered: Nov 2009
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Ooops,

Sorry, didn't scroll all the way down ... in xorg.conf, you define four devices, binding each one to a screen ...

Have you tried defining a different screen # in each Device section ?

Also, there is something like Option "UseDisplayDevice" "DFP/CRT/etc ..." to be tried as well ...

Cheers.
 
Old 01-10-2011, 04:06 AM   #4
ChaPat
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Registered: Mar 2007
Location: Switzerland
Distribution: Fedoras core 6.0
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Thanks crystalwave,

I try changing the screen name and adding the option UseDisplayDevice: no change. I try also somethings new. I run the command nvidia-xconfig trying enabling both GPUs. The command returns an error as follow:
Code:
[root@testpc X11]# nvidia-xconfig --enable-all-gpus

Using X configuration file: "/etc/X11/xorg.conf".
NVIDIA: could not open the device file /dev/nvidia1 (Input/output error).

WARNING: Unable to use the nvidia-cfg library to query NVIDIA hardware.


ERROR: Unable to determine number of GPUs in system; cannot honor '--enable-all-gpus' option.

Backed up file '/etc/X11/xorg.conf' as '/etc/X11/xorg.conf.backup'
New X configuration file written to '/etc/X11/xorg.conf'

[root@testpc X11]# ls -l /dev/nvidia*
crw-rw-rw-. 1 root root 195,   0 Jan 10 10:00 /dev/nvidia0
crw-rw-rw-. 1 root root 195,   1 Jan 10 10:00 /dev/nvidia1
crw-rw-rw-. 1 root root 195, 255 Jan 10 10:00 /dev/nvidiactl
Now, I do not know if I need configuring something into /etc/modprobe.d.

I still need help. Thanks in advance
 
Old 07-20-2011, 02:04 PM   #5
pisanlov
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Registered: Nov 2005
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Hi ChaPat, did you have luck configuring the four head PC? Any tips/tricks?
 
Old 07-21-2011, 12:56 AM   #6
ChaPat
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Registered: Mar 2007
Location: Switzerland
Distribution: Fedoras core 6.0
Posts: 7

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I thinck I forgot writing vmalloc=256MB into the /etc/grub.conf file, at the end of the line root=UUID=... . After I add this, I was able configuring correctly all displays and it works fine. Now I have two cards with each 4 video outputs. So I have 8 screens managed from one computer.
 
  


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