Red Hat Bugzilla – Bug 700994
"Dim screen to save power" has no effect
Last modified: 2012-03-05 12:10:42 EST
Description of problem: Setting "Dim screen to save power" in gnome-power-manager has no effect Version-Release number of selected component (if applicable): gnome-power-manager-3.0.0-1.fc15.x86_64 How reproducible: Always reproducible. Steps to Reproduce: - Open gnome's system settings in gnome3 - click on "screen" - check "Dim screen to save power" - unplug the power cord so the laptop runs on battery Actual results: The screen's brightness remains unchanged. Expected results: The screen should dim to save power. Additional info: Opening dconf-editor and manually toggling org.gnome.power-manager.backlight-battery-reduce works as expected. It seems that gnome-power-manager should toggle this setting in dconf, but doesn't.
This should be fixed in F16, please reopen if that's not the case. Thanks.
Since this is one of the top google hits for "gnome dim screen to save power", I wanted to update this entry. The "Dim screen to save power" option currently sets the dconf value /org/gnome/settings-daemon/plugins/power/idle-dim-battery. As far as I can tell, there is no setting anywhere in GNOME 3 (in Fedora 16) that will dim the screen when a PC switches from external to battery power.