Display controller UNCLAIMED

ninjier · 10-15-2010, 04:59 AM

Hello everyone,

I'm having trouble getting Fedora 13 to use my second monitor.

There are two graphics cards, one on-board (ATI Radeon Xpress 200), and one PCI Express one (ATI Radeon X1300).

During the boot process, the second monitor displays the blue splash screen with animated Fedora logo, then stops, output then switches to the primary monitor where I can log in and do everything else without issue.
The second monitor will shows the Fedora splash screen throughout my entire session.

I've ran lshw and it shows my secondary as UNCLAIMED:

Code:

*-display:1 UNCLAIMED
       description: Display controller
       product: Radeon Xpress Series (RS482)
       vendor: ATI Technologies Inc
       physical id: 5.1
       bus info: pci@0000:01:05.1
       version: 00
       width: 32 bits
       clock: 66MHz
       capabilities: pm bus_master cap_list
       configuration: latency=32 mingnt=8
       resources: memory:b8000000-bfffffff(prefetchable) memory:d0a10000-d0a1ffff

lshw recognises the graphics controllers (that's how I learnt the models of the cards inside!), but for reason reason a kernel module isn't loaded (I think!).

Does anybody know how I can tweak the kernel to load the correct module on boot?

I've Google this whole problem for two days now, and I'm running low on keywords to give it!

kc4mts · 10-15-2010, 06:06 AM

I may have some bad news for you...and then again I do not know every thing.
The on board video may be showing the boot up screen but when Fedora switches to X the on board video is essentially switched off. Most video card manufacturers will tell you that the on board video needs to be turned off in the BIOS when using their card. If the ATI Radeon X1300 has a regular VGA and one DVI or HDMI connection you can connect both monitors (one with the appropriate adapter) to that board, I am not familiar enough with the ATI card to give you much more help, but most cards will do split screen operations although you will need some drivers to do it with. I think one type is called twinview.
Check with ATI and they should have the linux drivers that you need.