Bug 87091 - Toshiba nb550d screen does not turn on after hibernate or sometimes reboot
Summary: Toshiba nb550d screen does not turn on after hibernate or sometimes reboot
Status: REJECTED INSUFFICIENT_DATA
Alias: None
Product: Power Management
Classification: Unclassified
Component: Hibernation/Suspend (show other bugs)
Hardware: All Linux
: P1 high
Assignee: Rafael J. Wysocki
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-10-28 15:41 UTC by Severin Wünsch
Modified: 2014-12-10 17:48 UTC (History)
2 users (show)

See Also:
Kernel Version: 3.16.0-23-generic
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Severin Wünsch 2014-10-28 15:41:43 UTC 
I am currently using kernel 3.14.2-031402-generic on a Toshiba nb500d netbook where everything works.
But on kernel 3.16.0-23-generic (default on lubuntu 14.10) after standby the screen stays black I can heare the fan and and the disc spinning and all the leds behave like starting from standby.

How can I help fixing this bug. I also tried to boot with kernel linux-image-3.18.0-031800rc2-generic which did not work (some kind of errror).
Comment 1 Aaron Lu 2014-11-05 02:20:59 UTC 
Sounds like a GPU issue. 
By standby, do you mean suspend to mem? After resume, possible to ssh to the netbook to check its dmesg?
Note You need to log in before you can comment on or make changes to this bug.