Disyncronisation with current brightness settings and g-p-m
Bug #140018 reported by
kimus
This bug report is a duplicate of:
Bug #131885: Backlight no longer under my control on battery.
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| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| gnome-power |
Invalid
|
Unknown
|
|||
| gnome-power-manager (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
Bug Description
Binary package hint: gnome-power-manager
When my laptop is on battery power g-p-m changes brightness to the the value it's configured in 'Dim display brightness by:' (i.e.: 50%)
But if I change the brightness with the laptop Fn-Keys/Hotkeys, let's say 25%, it's not synchronized with g-p-m.
The following 'bugs' occur:
- When the laptop is idle it dims the display. But when I move the mouse the brightness level is changed to the value configured in g-p-m (50%) and not the custom (25%), and the last, that I did with the laptop Fn-Keys/Hotkeys;
- When I open the preferences dialog from the g-p-m applet the brightness level is also changed like I mentioned above;
Revision history for this message
| Kyle Rankin (greenfly-greenfly) wrote | #1 |
Revision history for this message
| Richard Harding (rharding) wrote | #2 |
Revision history for this message
| Jorge Castro (jorge) wrote | #3 |
| Changed in gnome-power-manager: | |
| status: | New → Confirmed |
| Changed in gnome-power: | |
| status: | Unknown → New |
Revision history for this message
| Rubin (rubin) wrote | #4 |
Revision history for this message
| rborovyk (rborovyk) wrote | #5 |
| Changed in gnome-power: | |
| status: | New → Confirmed |
| Changed in gnome-power: | |
| status: | Confirmed → Invalid |
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I also see this issue and I notice that /sys/class/
1. Set battery mode in g-p-m so that backlight is less than 100% when on battery (lets say 25%), and set backlight to dim when idle.
2. Set laptop to run on battery power so backlight dims (in this example to 25%).
3. Use Fn keys to change backlight back to 100%.
4. Wait for idle timeout to kick in and dim backlight completely.
5. Move the mouse to wake up from idle. Backlight will be set to 25% or whatever was set in g-p-m, not the 100% it was set to before idle.
So basically it seems like g-p-m refers to its configured backlight setting when resuming from idle instead of storing the current backlight setting before going idle so it can then restore to that value.