Red Hat Bugzilla – Bug 756161
After screen sleeps from DPMS activation, it stays dim.
Last modified: 2013-02-13 03:03:24 EST
Created attachment 535176 [details]
Description of problem:
When DPMS activates on my laptop and then the display is activated again, the display stays very dim. I can barely see that it's on at all. Trying to use the brightness function keys doesn't help either.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. xset dpms force off
2. move the mouse to activate the display
The screen brightness is too low to see anything. It's barely bright enough to see that it's even still functioning.
Screen should reawaken at normal brightness.
ctrl-alt-backspace resets the x server and restores screen brightness.
This wasn't a problem until a very recent update in some package within the last week or two (not sure which one). This problem started with me on Fedora 15 after I updated my system a few days ago. I performed a fresh install of Fedora 16 yesterday and this problem is still present.
My graphics controller information:
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 3870
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-
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f0500000 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at 1800 [size=8]
Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at f0600000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities:  MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: i915
Kernel modules: i915
Same problem here. Smolt ID is pub_af00c368-f9a2-430c-83f7-7c4e81c35311
Will this bug be assigned? I keep getting bit by it hard. The system is completely unusable after it sleeps if one forgets to disable DPMS, which is not ideal anyway, since it is not energy efficient to leave the display constantly on.
Does anyone know how to run the command "xset -dpms" when gnome starts? I'm not familiar with how gnome does this (.config/autostart I think, but not completely sure yet).
This may be resolved now. There's been a few kernel updates over the past couple of weeks. Today I tried letting DPMS put my monitor to sleep and after waking it up it seemed to work fine. It's been working OK all day now...
I am expecting a similar issue with recent kernels. Reported under bug 847090. Noted that this is a data loss bug since all of my GUI apps lose state.
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