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  1. Bug #509273
  2. Comment #3

Comment 3 for bug 509273

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Reiger (jm-ouwerkerk) wrote : Re: [Lucid] KMS doesn't work properly with old Radeon cards

Unless I add radeon.modeset=0 (i.e. disable KMS) I invariably get a screen corruption after log-on (using kdm). That is, I can log on but at that point the screen will ‘black out’ and the computer/X will lock up.

I do not see any screen corruption with kwin using radeon.modeset=0, though. lshw reports:

lshw -C display
WARNING: you should run this program as super-user.
  *-display UNCLAIMED
       description: VGA compatible controller
       product: RC410 [Radeon Xpress 200M]
       vendor: ATI Technologies Inc
       physical id: 5
       bus info: pci@0000:01:05.0
       version: 00
       width: 32 bits
       clock: 66MHz
       capabilities: bus_master cap_list
       configuration: latency=64 mingnt=8
       resources: memory:90000000-9fffffff(prefetchable) ioport:7800(size=256) memory:f88f0000-f88fffff memory:f88c0000-f88dffff(prefetchable)