Dell Optiplex GX270 Triple Screen

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deboeck · Post by **deboeck** » Tue Apr 11, 2006 4:22 pm

Hi all,

Does anyone know how to get 'triple screen' working on a Dell Optiplex ?

I have a Dell Optiplex GX270 at work on which I'm running Gentoo. The PC has an onboard graphic card (Intel) and also an AGP slot. I've inserted a Matrox G550 Dual Head in the AGP and I'm currently using that card in 'dual screen' mode, with DRI and Xinerama.
I like the extra screen space so much that I'd like to add another monitor, connected to the onboard graphic card. Problem I'm having is that the onboard graphic card doesn't show up when I do 'lspi':

Code: Select all

# lspci
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
00:01.0 PCI bridge: Intel Corporation 82865G/PE/P PCI to AGP Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G550 AGP (rev 01)
02:08.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 02)
02:0c.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)

The only VGA controller detected is the Matrox. I know the other card works, because I've used the PC without the Matrox card. The driver was i810, I think. So my question is, does anyone know why the onboard graphic card isn't detected ? Does the motherboard disable it when an AGP card is present ? Anyway I can enable it ?

Tia,

Steven

nic01 · Post by **nic01** » Tue Apr 11, 2006 5:46 pm

I think the onboard card runs on the AGP bus as well. Don't think it's possible so use both an AGP card and onboard. You probably have to use an extra PCI card.

deboeck · Post by **deboeck** » Wed Apr 12, 2006 7:32 am

nic01 wrote:I think the onboard card runs on the AGP bus as well. Don't think it's possible so use both an AGP card and onboard. You probably have to use an extra PCI card.

Hmm. Pity. I don't have a PCI graphic card, so I guess it's 'bye bye triple screen'. Was really looking forward to it, though.