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[Bug 554855] Re: After suspend-resume on a duel screen setup, display settings are set to 'mirror screens'

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Jan Rüegg <rggjan@xxxxxxxxx>
Date: Thu, 16 Sep 2010 11:16:42 -0000
Reply-to: Bug 554855 <554855@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Doesn't seem to be fixed for me... I have the exact same problem that is
described at the beginning:

"After suspend-resume with an external monitor and a laptop (embedded
intel graphics), display settings are set to 'mirror screens'. The user
must enter the Display preferences and re-configure the screens."

I'm on an up-to-date 10.04 64-bit lucid system.

What I can see, also, is that the screen is set to "mirror screens"
during suspend, and not resume. I can see on the external monitor that
the resolution changes on the attached second screen when suspending,
and it stays when I resume.

lscpi -vnnn (part of it):

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
	Subsystem: Fujitsu Limited. Device [10cf:1458]
	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
	Interrupt: pin A routed to IRQ 29
	Region 0: Memory at f2000000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at 1800 [size=8]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 07)
	Subsystem: Fujitsu Limited. Device [10cf:1458]
	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
	Region 0: Memory at f2400000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>


** Changed in: xserver-xorg-video-intel
       Status: Fix Committed => New

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: Fix Committed => New

-- 
After suspend-resume on a duel screen setup, display settings are set to 'mirror screens'
https://bugs.launchpad.net/bugs/554855
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which is the registrant for xf86-video-intel.