I wanted to use xfce4-power-manager to dim/power-off my screen, but I run into following problems: 1) The screen dimming works except for a minor flaw - it sets the screen brightness to the second-lowest instead of lowest possible setting. Probably intentional behaviour, but an option to configure this would be nice. 2) I also configured "switch off display when computer is inactive for: 1 minute" and "reduce screen brightness...: 10 seconds". If i "wake-up" the computer (hitting a key, mouse movement) during the period when the screen is dim but not off, it's restored correctly. However, if I wait until it's turned off and then wake it up, it turns on but the brightness is reduced. Now two scenarios are possible: a) I hit the brightness-up key combo (Fn+Home on ThinkPad) - the brightness starts increasing from the low setting as if it was kept reduced after the wakeup. b) I hit the brigthness-down key combo (Fn+End on ThinkPad) - then brightness wents to the maximum setting (as I had to begin with), and one notch down (the keycombo takes effect) - ie suddenly the manager "remembers" what the status of brightness was. The above is the same with "put display to sleep" instead of "switch off display". My guess is that when waking up, the brightness isn't restored properly. Any help on this would be appreciated as it is kinda annoying.
(In reply to comment #0) > I wanted to use xfce4-power-manager to dim/power-off my screen, but I run into > following problems: > > 1) The screen dimming works except for a minor flaw - it sets the screen > brightness to the second-lowest instead of lowest possible setting. Probably > intentional behaviour, but an option to configure this would be nice. > Some backlight panel switch the screen off if the brightness level is reduced to its minimum value, so this is kept in xfpm to make it work with all hardware, anyway please attach your lshal output here. > 2) I also configured "switch off display when computer is inactive for: 1 > minute" and "reduce screen brightness...: 10 seconds". If i "wake-up" the > computer (hitting a key, mouse movement) during the period when the screen is > dim but not off, it's restored correctly. However, if I wait until it's turned > off and then wake it up, it turns on but the brightness is reduced. Since i'm not able to reproduce it here i need more debugging info from you, are you able to re-compile xfpm with --enable-debug=full as a command line argument for ./configure script? if yes please do the run xfce4-power-manager --no-daemon try to reproduce your problem then attach the output you see from xfpm here. Thanks.
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