Description of problem:
External monitor gets signal but screen is black after kernel update. Reverting back to prior kernel fixes problem.
Version-Release number of selected component (if applicable):
bad -> 22.214.171.124-141.fc12.x86_64
good -> 126.96.36.199-127.fc12.x86_64
Connect external monitor - tried both LCD & Cathode Ray Tube. Monitor shows signal (and appears in gnome applet, but screen remains black. Revert kernel and all is well.
Sony Vaio FW290 laptop. Video card:
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3650
This bug is also present in kernel 150.fc12.x86_64
HP EliteBook 8530p
Same video chipset
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