Additional information: Unlike described in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/451282 the problem does not disappear with subsequents suspen/resume cycles.
So far a reboot is the only way for me to get display brightness back. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1390764 Title: Display remains fully dimmed after resume from suspend Status in “linux” package in Ubuntu: Incomplete Bug description: The symptoms reported with https://bugs.launchpad.net/ubuntu/+source/linux/+bug/451282 persist. After resuming from sudpend the display returns fully dimmed, and display brightness can't be adjusted, neither using FN keys, nor using KDE power management control. The issue occurs regardless whether the supend state was activated by low battery, by closing the display, or by explicitly selecting sleep mode in KDE. Killing and restarting X does not solve the problem. A reboot does. Notebook: HP 8530w, Quadro FX 770M, Nouveau driver. Details: # dpkg -l xserver-xorg-video-nouveau Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============================-====================-====================-================================================================== ii xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 amd64 X.Org X server -- Nouveau display driver # lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 # cat /proc/version_signature Ubuntu 3.13.0-39.66-generic 3.13.11.8 From lspci -vnvn: 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G96GLM [Quadro FX 770M] [10de:065c] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:30e7] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 46 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1390764/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
