Comment 48 for bug 509273

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Matej Kenda (matejken) wrote : Re: [Lucid] ATI KMS causes DRM error on X200M

It seems that KMS is causing problems on Compaq Evo N1015v as well. Screen freezes after some time. Compiz was extremely slow so I disabled it.

Running sudo lshw -c video with KMS enabled froze the computer as well.

$ sudo lshw -c video
[sudo] password for matej:
  *-display UNCLAIMED
       description: VGA compatible controller
       product: Radeon Mobility U1
       vendor: ATI Technologies Inc
       physical id: 5
       bus info: pci@0000:01:05.0
       version: 00
       width: 32 bits
       clock: 66MHz
       capabilities: agp agp-2.0 pm bus_master cap_list
       configuration: latency=66 mingnt=8
       resources: memory:f0000000-f7ffffff(prefetchable) ioport:9000(size=256) memory:e8100000-e810ffff memory:e8120000-e813ffff(prefetchable)

$ lspci | grep ATI
00:00.0 Host bridge: ATI Technologies Inc AGP Bridge [IGP 320M] (rev 13)
00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 320M] (rev 01)
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility U1