GNOME Bugzilla – Bug 661017
backlight stays on when screen is manually locked
Last modified: 2013-01-17 14:07:27 UTC
When I lock the screen manually the backlight doesn't turn off.
It will do, after the normal backlight dpms interval. What were you expecting to happen?
Expected the backlight to go off immediately. There is no point in having it on. Furthermore, when I do interact with the system again to bring up the unlock dialog the backlight should go off again after a short time (shorter than the normal backlight dpms interval).
(In reply to comment #2) > Expected the backlight to go off immediately. There is no point in having it > on. Immediately, or after a second or so? > Furthermore, when I do interact with the system again to bring up the unlock > dialog the backlight should go off again after a short time (shorter than the > normal backlight dpms interval). What timeout value do you think should be used when locked? Should the screen still turn off if the user has specified "never" in the preferences?
*** Bug 674524 has been marked as a duplicate of this bug. ***
*** Bug 685853 has been marked as a duplicate of this bug. ***
(In reply to comment #3) > (In reply to comment #2) > > Expected the backlight to go off immediately. There is no point in having it > > on. > > Immediately, or after a second or so? > > > Furthermore, when I do interact with the system again to bring up the unlock > > dialog the backlight should go off again after a short time (shorter than the > > normal backlight dpms interval). > > What timeout value do you think should be used when locked? Should the screen > still turn off if the user has specified "never" in the preferences? We don't need a preference for this, I don't think. When the screen is locked, turn it off after a short time. Less than 10 seconds, is what was said in https://live.gnome.org/Boston2012/Multimonitor
(In reply to comment #6) > We don't need a preference for this, I don't think. When the screen is locked, > turn it off after a short time. Less than 10 seconds, is what was said in > https://live.gnome.org/Boston2012/Multimonitor Except that we do have a preference for screen blanking, so it would be strange not to honour that. My current thinking is to combine the dim screen and screen blank settings into a single "Screen Power Saving" switch. When enabled, this will automatically dim and blank the screen, but can also take the current situation into account (eg. don't need to dim the screen if on battery, can be more aggressive when power is low).
(In reply to comment #7) Apologies - I thought this was about screen blanking rather than the backlight. Ignore me.
This should be addressed as part of implementing 'smart behaviour' for the 'screen power saving' option in the new power panel.
commit a52d3652207238af3e746fc959a285c9bf23cbfd Author: Matthias Clasen <mclasen@redhat.com> Date: Fri Jan 11 23:22:02 2013 -0500 power: Aggressive blank timeout when the shield is down When the screen shield is down (as indicated by the screensaver being active), blank the screen more aggressively, to conserve power. To not contribute to the over-configurability of the power plugin, the timeout value of 30 seconds is fixed. https://bugzilla.gnome.org/show_bug.cgi?id=691002
*** Bug 643889 has been marked as a duplicate of this bug. ***