Alfred von Campe
2013-Mar-28 22:08 UTC
[CentOS] Does CentOS support dual graphics cards with 2 monitors each?
I have a user who wants to have 4 monitors attached to his CentOS 6.4 system. I know that you can't use both on-board video and a PCI video card at the same time, but what about two PCI video cards? The system seems to recognize them as shown by the lspci -v output below, but I can't get Xorg to use the second card. Has anyone done this? If so, what is the trick to get it to work? Alfred 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) Subsystem: Dell Device 04ad Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information <?> 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 00004000-00004fff Memory behind bridge: ed000000-ee0fffff Prefetchable memory behind bridge: 00000000e0000000-00000000e9ffffff Capabilities: [88] Subsystem: Dell Device 04ad Capabilities: [80] Power Management version 3 Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [a0] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel <?> Capabilities: [140] Root Complex Link <?> Kernel driver in use: pcieport 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) Subsystem: Dell Device 04ad Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at eebb0000 (64-bit, non-prefetchable) [size=16] Capabilities: [50] Power Management version 3 Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+ 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) Subsystem: Dell Device 047e Flags: bus master, fast devsel, latency 0, IRQ 32 Memory at eeb00000 (32-bit, non-prefetchable) [size=128K] Memory at eeb80000 (32-bit, non-prefetchable) [size=4K] I/O ports at 5040 [size=32] Capabilities: [c8] Power Management version 2 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [e0] PCI Advanced Features Kernel driver in use: e1000e Kernel modules: e1000e 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI]) Subsystem: Dell Device 04ad Flags: bus master, medium devsel, latency 0, IRQ 16 Memory at eeb70000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) Subsystem: Dell Device 04ad Flags: bus master, fast devsel, latency 0, IRQ 31 Memory at eeb60000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel <?> Capabilities: [130] Root Complex Link <?> Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 04ad Capabilities: [a0] Power Management version 2 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I/O behind bridge: 00003000-00003fff Memory behind bridge: ee100000-eeafffff Prefetchable memory behind bridge: 00000000ea100000-00000000eaafffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 04ad Capabilities: [a0] Power Management version 2 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: eb000000-ec0fffff Prefetchable memory behind bridge: 00000000d0000000-00000000d9ffffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 04ad Capabilities: [a0] Power Management version 2 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI]) Subsystem: Dell Device 04ad Flags: bus master, medium devsel, latency 0, IRQ 17 Memory at eeb50000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a4) (prog-if 01 [Subtractive decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=05, subordinate=05, sec-latency=0 Capabilities: [50] Subsystem: Dell Device 04ad 00:1f.0 ISA bridge: Intel Corporation Q65 Express Chipset Family LPC Controller (rev 04) Subsystem: Dell Device 04ad Flags: bus master, medium devsel, latency 0 Capabilities: [e0] Vendor Specific Information <?> Kernel modules: iTCO_wdt 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family SATA AHCI Controller (rev 04) (prog-if 01 [AHCI 1.0]) Subsystem: Dell Device 04ad Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 30 I/O ports at 5090 [size=8] I/O ports at 5080 [size=4] I/O ports at 5070 [size=8] I/O ports at 5060 [size=4] I/O ports at 5020 [size=32] Memory at eeb40000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [70] Power Management version 3 Capabilities: [a8] SATA HBA <?> Capabilities: [b0] PCI Advanced Features Kernel driver in use: ahci Kernel modules: ahci 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) Subsystem: Dell Device 04ad Flags: medium devsel, IRQ 18 Memory at eeb30000 (64-bit, non-prefetchable) [size=256] I/O ports at 5000 [size=32] Kernel modules: i2c-i801 01:00.0 VGA compatible controller: NVIDIA Corporation Device 104a (rev a1) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. Device 809f Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at ed000000 (32-bit, non-prefetchable) [size=16M] Memory at e0000000 (64-bit, prefetchable) [size=128M] Memory at e8000000 (64-bit, prefetchable) [size=32M] I/O ports at 4000 [size=128] Expansion ROM at ee000000 [disabled] [size=512K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [b4] Vendor Specific Information <?> Capabilities: [100] Virtual Channel <?> Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information <?> Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb 01:00.1 Audio device: NVIDIA Corporation GF119 HDMI Audio Controller (rev a1) Subsystem: Micro-Star International Co., Ltd. Device 809f Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at ee080000 (32-bit, non-prefetchable) [size=16K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 04:00.0 VGA compatible controller: NVIDIA Corporation Device 104a (rev a1) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. Device 809f Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at eb000000 (32-bit, non-prefetchable) [size=16M] Memory at d0000000 (64-bit, prefetchable) [size=128M] Memory at d8000000 (64-bit, prefetchable) [size=32M] I/O ports at 2000 [size=128] Expansion ROM at ec000000 [disabled] [size=512K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [b4] Vendor Specific Information <?> Capabilities: [100] Virtual Channel <?> Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information <?> Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb 04:00.1 Audio device: NVIDIA Corporation GF119 HDMI Audio Controller (rev a1) Subsystem: Micro-Star International Co., Ltd. Device 809f Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at ec080000 (32-bit, non-prefetchable) [size=16K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel
Jay Leafey
2013-Mar-28 23:02 UTC
[CentOS] Does CentOS support dual graphics cards with 2 monitors each?
On 03/28/2013 05:08 PM, Alfred von Campe wrote:> I have a user who wants to have 4 monitors attached to his CentOS 6.4 system. I know that you > can't use both on-board video and a PCI video card at the same time, but what about two PCI > video cards? The system seems to recognize them as shown by the lspci -v output below, but > I can't get Xorg to use the second card. Has anyone done this? If so, what is the trick to > get it to work? > > Alfred >It appears you are running the open-source nouveau drivers. I'm running dual monitors, albeit on a single nVidia card, but I'm using the nVidia packages from the elrepo repository. Look at http://elrepo.org/tiki/kmod-nvidia for more details. Just my $.02 -- Jay Leafey - jay.leafey at mindless.com Memphis, TN
John R Pierce
2013-Mar-28 23:08 UTC
[CentOS] Does CentOS support dual graphics cards with 2 monitors each?
On 3/28/2013 3:08 PM, Alfred von Campe wrote:> I know that you > can't use both on-board video and a PCI video card at the same time,actually with newer systems, the hardware does allow you to use builtin and pci-express video concurrently. I had 3 monitors briefly on my home (MS Windows 8) system, 2 were on a Nvidia GT640, the 3rd was hot plugged into the onboard (Intel i5-3570k HD4000) and it just came up as another screen without any intervention or even rebooting. When I first got the GT640, I had one monitor plugged into each until I got another suitable DVI cable. -- john r pierce 37N 122W somewhere on the middle of the left coast
Dale Dellutri
2013-Mar-29 03:01 UTC
[CentOS] Does CentOS support dual graphics cards with 2 monitors each?
On Thu, Mar 28, 2013 at 5:08 PM, Alfred von Campe <alfred at von-campe.com> wrote:> I have a user who wants to have 4 monitors attached to his CentOS 6.4 system. I know that you > can't use both on-board video and a PCI video card at the same time, but what about two PCI > video cards? The system seems to recognize them as shown by the lspci -v output below, but > I can't get Xorg to use the second card. Has anyone done this? If so, what is the trick to > get it to work?What does xrandr report? (I've used Matrox M9140 and the matrox prop driver. That combo provides quad monitors with one graphics card.) -- Dale Dellutri
Lamar Owen
2013-Mar-29 18:28 UTC
[CentOS] Does CentOS support dual graphics cards with 2 monitors each?
On 03/29/2013 01:39 PM, John R Pierce wrote:> I *know* with the early (and really lousy performance) intel onboard > stuff, you flat couldn't use the onboard if an external card was plugged > into the AGP slot. >However, it can and does work with many 2002-era Intel chipsets if you use a *PCI* video card. I'm getting three monitor output with a Dell Dimension 4500S here; one on the motherboard VGA and two on an nVidia GeForce 6200-series PCI card. No, it's not very fast, but for a 2002-era P4 2.0GHz it's plenty fast enough for what the system is doing.
Dale Dellutri
2013-Apr-06 23:35 UTC
[CentOS] Does CentOS support dual graphics cards with 2 monitors each?
On Thu, Mar 28, 2013 at 5:08 PM, Alfred von Campe <alfred at von-campe.com>wrote:> I have a user who wants to have 4 monitors attached to his CentOS 6.4 > system. I know that you > can't use both on-board video and a PCI video card at the same time, but > what about two PCI > video cards? The system seems to recognize them as shown by the lspci -v > output below, but > I can't get Xorg to use the second card. Has anyone done this? If so, > what is the trick to > get it to work? >I previously suggested the Matrox M9140 with the matrox proprietary driver (m9x), but the current one does not support the Xorg server 1.13 which is the current server for CentOS 6.4. Until they update the driver package, it can't be installed on a CentOS 6.4 system. In the next few weeks I'm going to test some other graphic cards that have four monitor connections on one card: ATI FirePro 2460 Multiview NVidia Quadro NVS 420 NVidia Quadro NVS 510 I hope that they will work with the open source driver (radeon or nouveau). -- Dale Dellutri
Richard Karhuse
2013-Apr-07 07:45 UTC
[CentOS] Does CentOS support dual graphics cards with 2 monitors each?
I've got a triple-head set-up running where 1 monitor is off
the internal Intel HD-4000 GPU and 2x monitors are off a GT550-Ti
using the nVidia drivers. I could not get xrandr support to work
(and attributed that to Intel / nVidia not co-operating). I found that
using the nVidia xserver setting GUI and hand-editing the xorg.conf
file to be the best solution. I have similar (but slightly) different
set-ups working under Fedora-17 and CentOS-6. All 3x screens are
in on large canvass (so screens can be drag from any monitor to any
where on the canvass, e.g., xinerama) across 2x X-servers -- so full
screen either occupies the 1x Dell 24" or the 2x E-Bay 27"
"specials".
The key I found is locking things in with the BusID w/PCI designation
settings.
HTH
-rak-
Here is the xorg.conf -- in case that helps:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 304.37 (mockbuild@) Tue Aug 14 06:30:17 CEST 2012
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "1"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from data in "/etc/sysconfig/keyboard"
Identifier "Keyboard0"
Driver "keyboard"
Option "XkbLayout" "us"
Option "XkbModel" "pc105"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "FRT DIGITAL"
HorizSync 30.0 - 91.0
VertRefresh 56.0 - 61.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Dell"
ModelName "Dell 2405FPW"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 76.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 550 Ti"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "Device1"
Driver "intel"
VendorName "intel"
BoardName "intel"
BusID "PCI:0:2:0"
Option "monitor-HDMI2" "Monitor1"
EndSection
Section "Screen"
Identifier "Screen1"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-0"
Option "metamodes" "DFP-0: 2560x1440 +0+0, DFP-2:
2560x1440 +2560+0; DFP-0: nvidia-auto-select +0+0, DFP-2:
nvidia-auto-select +2560+0"
# Option "metamodes" "DFP-0: 2560x1440 +0+0; DFP-0:
nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "metamodes" "HDMI1: 1920x1200 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection