On 08/02/2011 02:41 PM, Adam Williamson wrote: > On Sun, 2011-07-31 at 15:37 -0300, Sergio Belkin wrote: >> I've read http://fedoraproject.org/wiki/Bugs/Common#Laptop_screen_dims_when_switching_to_battery_power_or_idle_mode_but_never_brightens_again >> >> My system suffers the same symptoms but I use KDE. So it seems that is >> not GNOME restricted. >> >> >> Using F15 on x86_64 >> >> cat /sys/module/pcie_aspm/parameters/policy >> default performance [powersave] >> >> any ideas? > > That bug certainly was GNOME specific: it was a bug in > gnome-power-manager 's logic. There's no way that specific bug could > affect KDE, unless somehow you're running g-p-m in KDE. If you're seeing > a similar issue in KDE, it must track down to a different bug, so please > file it. Be aware, though, that the display dimming somewhat when you > disconnect the AC power is 'normal': both KDE and GNOME do this to save > battery power. The bug in this case was that when you re-connected to AC > the brightness did not increase again, but if you then disconnected from > AC once more the brightness would decrease further - so you got stuck in > a descending spiral of darkness until the screen was stuck at its lowest > possible brightness setting until you adjusted it manually or rebooted. > If the screen dims somewhat (to, say, 50%) when you unplug, goes back up > to 100% when you plug back in, then dims back to 50% when you unplug > again, that's intended behaviour and not a bug (though if you don't like > it, it's configurable). I've seen a different bug on KDE - specifically - after a sleep/resume cycle (I think) - going to battery off A/C - the applet says its in powersave mode but the screen is NOT dimmed - using the applet to switch to performance and then back to powersave mode - dims the screen. This is (as far as I know) specific to KDE but I could be wrong ... -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
