Kernel Bug Tracker – Bug 6778
S3: resume: black screen - Toshiba M50
Last modified: 2007-09-06 15:04:35 UTC
Most recent kernel where this bug did not occur:
Ubuntu 6.06 LTS Dapper Drake
Shuts down, power button flashes red. When I press the power button again, the
screen just goes to black and doesn't recover.
Steps to reproduce:
echo mem > /sys/power/state
Created attachment 8464 [details]
Decompiled dsdt.dsl file
It is possible that the system has resumed, but failed
to re-enable the LCD.
on resume, is the LCD backlight off (black in a dark room)?
or is it on but blank (LCD glows slightly in a dark room)?
is there any indication of life on the resume?
ie. can you ping the machine on the network, or
do you see the disk LED blink?
The screen seems to be completely black. No blacklight or glow of any kind.
There is no hard drive activity and I can't ping the machine.
The disk led blinks once for about a milisecond, but then there is nothing. The
fan doesn't power up full speed like on a normal boot either. It starts at the
can you ping the machine on the network after the resume attempt?
Nope, I can't ping the machine.
Please re-open if this is still a problem in linux-2.6.22.stable or later.