** Description changed: Binary package hint: gnome-settings-daemon Hardware: ASUS A6Km laptop Distribution: Ubuntu Hardy Beta Package hint: gnome-settings-daemon 2.22.1-0ubuntu1 When holding down any of the fn volume hotkeys (mute, volume down, volume up), the system will suffer from CPU lag (Up to ~50% usage while holding down) and enqueued volume events (which are then executed AFTER you release the key). My guess: Holding down any of the hotkeys causes the system to repeatedly send the event to the OSD, which apparently has a rather inefficient way of drawing the on-screen volume bar. If the bar is unnecessarily recalculated/redrawn x times per second, it causes enqueued events and CPU lag. Holding down a volume hotkey for ~10 seconds will cause the volume bar to flicker/refresh for an additional 5-10 seconds after you release the key. This causes the volume to rise/fall more than you wanted (because you first stopped holding down the key when the OSD showed the volume you wanted - yet several events have been enqueued in the meantime). On another Ubuntu setup with a wireless HP USB keyboard, this bug is not present. I guess the event repeat rate is different for each keyboard? xprop | grep WM_CLASS against the OSD hinted gnome-settings-daemon. + + [lspci] + 00:00.0 Host bridge [0600]: Silicon Integrated Systems [SiS] Device [1039:0756] (rev 02) + Subsystem: ASUSTeK Computer Inc. Device [1043:1977] + 01:00.0 VGA compatible controller [0300]: nVidia Corporation G72M [Quadro NVS 110M/GeForce Go 7300] [10de:01d7] (rev a1) + Subsystem: ASUSTeK Computer Inc. Device [1043:1101]
-- Holding down volume hotkeys causes CPU lag and enqueued volume events https://bugs.launchpad.net/bugs/216788 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
