I have a Dell D810 with ATI X600 internal. Dock has Visiontek 3450 w/dual outs. I managed to get the dual externals working, but in process disabled the laptop monitor. I think that this is because the laptop was originally set up to auto sense the ATI drivers supplied with Ubuntu 11.10, but I had to install an alternate set of drivers, then follow the thread here to get the externals working (http://ubuntuforums.org/showthread.php?t=1867419). I think that if I can get the alternate drivers to sense the internal card, then I can run all three panels simultaneously, or at least boot to the laptop by itself out of the dock. I can't boot to the laptop by itself currently, so that's what I need assistance with first. Thanks!

Some display output, in case helpful:

xxxxxxxxxx@xxxxxxxx:~$ sudo lshw -C video
*-display UNCLAIMED
description: VGA compatible controller
product: M24 1P [Radeon Mobility X600]
vendor: ATI Technologies Inc
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list
configuration: latency=0
resources: memory:d0000000-d7ffffff ioport:de00(size=256) memory:dfdf0000-dfdfffff memory:dfe00000-dfe1ffff
*-display
description: VGA compatible controller
product: RV620 PCI [Radeon HD 3450]
vendor: ATI Technologies Inc
physical id: 0
bus info: pci@0000:05:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=fglrx_pci latency=0
resources: irq:42 memory:80000000-8fffffff memory:dfaf0000-dfafffff ioport:ce00(size=256) memory:dfb00000-dfb1ffff

According to this (http://support.amd.com/us/gpudownloa...w_vista64.aspx) it appears that the X600 is not supported in the latest catalyst driver. So, I just ripped out fglrx.

What I need to do is try to get the laptop internal card and an external (docked) card working with open source drivers. Both cards are listed in lshw, but I can't bring up the monitors on card2 in the detect monitors feature.

:~$ sudo lshw -C video
*-display
description: Display controller
product: M24 1P [Radeon Mobility X600]
vendor: ATI Technologies Inc
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:42 memory:d0000000-d7ffffff ioport:de00(size=256) memory:dfdf0000-dfdfffff memory:dfe00000-dfe1ffff
*-display
description: VGA compatible controller
product: RV620 PCI [Radeon HD 3450]
vendor: ATI Technologies Inc
physical id: 0
bus info: pci@0000:05:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:43 memory:80000000-8fffffff memory:dfaf0000-dfafffff ioport:ce00(size=256) memory:dfb00000-dfb1ffff

Should I open a new discussion if I can't locate (or understand) how to engage multiple cards and displays in the open-source drivers? Thx!

From here I gather that multiple card support is called "crossfire," that the open source drivers do not yet support multiple cards, and that they may never, in fact, include the x600 even when they finally do support crossfire.

http://www.x.org/wiki/RadeonFeature#...et_the_drivers