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Bug 704601 - Screen lock immediately turns off monitor
Screen lock immediately turns off monitor
Status: RESOLVED DUPLICATE of bug 710904
Product: gnome-shell
Classification: Core
Component: login-screen
3.8.x
Other Linux
: Normal normal
: ---
Assigned To: Ray Strode [halfline]
gnome-shell-maint
Depends on:
Blocks:
 
 
Reported: 2013-07-20 10:23 UTC by Richard Körber
Modified: 2013-12-18 03:56 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description Richard Körber 2013-07-20 10:23:12 UTC
When locking the screen on Gnome 3.8, the monitor is immediately turned off (via DPMS).

Monitors with CCFL backlight will wear faster when turned off and on too often.

However, I found no way to turn this behaviour off. On Settings -> Power, I have set "Blank Screen" to "Never", but it did not help. I looked at Tweak Tool, dconf and gconf, but found no obvious way to change it.
Comment 1 Richard Körber 2013-07-30 08:25:30 UTC
As a workaround, I edited the file /usr/share/gnome-shell/js/ui/screenShield.js and commented out these lines in the _lockScreenShown function:

//        if (prevIsActive != this._isActive)
//            this.emit('active-changed');

After restarting Gnome, the monitor won't power down any more when locked. I have tested it for some days now, without any visible side effects. However please be careful. It is not meant as a bugfix!
Comment 2 Richard Körber 2013-08-20 16:34:57 UTC
Is there anything I can do to help you get this issue resolved?
Comment 3 Jasper St. Pierre (not reading bugmail) 2013-08-20 19:50:46 UTC
Thanks for the bug report. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find.

*** This bug has been marked as a duplicate of bug 699112 ***
Comment 4 Richard Körber 2013-08-20 21:17:38 UTC
Jasper, thank you for taking care for this bug. However I'm not sure if this is a duplicate of bug 699112.

What I want is to configure the lock screen, so my monitor is not powered down at all. Or at least it should only be powered down after being locked and idle for a very long time (like 30 minutes or more).

I don't have enough knowledge to assess if the patches in bug 699112 address this bug. Can you confirm that I will be able to turn off DPMS on the lock screen at all?
Comment 5 Richard Körber 2013-12-09 20:01:22 UTC
After updating to gnome-shell-3.8.4-3.fc19.x86_64 the bug still exists.

What can I do to disable that the screen is powered off?
Comment 6 Richard Körber 2013-12-17 22:04:51 UTC
Installed Fedora 20 (gnome-shell-3.10.2.1-3.fc20.x86_64), and the screen is still powered off when locked. I have found no way to configure this behaviour in the energy settings or in the tweak tool.

Again: What can I do to disable that the screen is powered off?
Comment 7 Michael Catanzaro 2013-12-18 03:56:40 UTC
Looks more like Bug #710904 than Bug #699112.

*** This bug has been marked as a duplicate of bug 710904 ***