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I installed Ubuntu dual-booting alongside Windows XP. After completing the install and rebooting, the machine froze, with this error message:

GPU lockup- switching to software fbcon
Failed to idle channel 1, 2, 3
PGraph TLB flush idle timeout fail

The graphics on the screen then went random and pixelated.

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Welcome to Ask Ubuntu! This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions on filing a bug report are here. – Jorge Castro Feb 8 at 15:25

closed as off topic by Jorge Castro, LnxSlck, Andrea Corbellini, hhlp, bodhi.zazen Feb 8 at 17:54

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