Red Hat Bugzilla – Bug 180115
CMOS clock/date change causes ATI display go blank on nF4
Last modified: 2015-01-04 17:25:04 EST
Description of problem:
CMOS clock/date change causes ATI display go blank on nF4 Ultra
Version-Release number of selected component (if applicable):
kernel 2.6.14-1.1656_FC4, x86_64
Change time/date in control panel, click "Apply".
Depending on change, display goes blank temporarily or permanently.
Discovered on LanParty UT nF4 Ultra-D, AMD 64
Blind log-off sometimes can restore display.
Also suspect that time-server synchronization causes same problem occasionally
*** Bug 180116 has been marked as a duplicate of this bug. ***
Screen also can go blank after reboot when the above symptoms happen.
Restoring CMOS settings (LanPart has CMOS recall feature) fixes that.
if the time adjusts by enough that the screenblanker interval has passed, that
would explain why the screen goes blank. Why it stays blank I've no idea.
What graphics driver is in use here?
Are there any messages in dmesg after it happens?
Closing due to lack of response.