[gm45] Upon resume, external monitor has signal but laptop screen does not

[Greg Grossmeier]

Binary package hint: xserver-xorg-video-intel

My Lenovo x200s is connected to an external monitor (Acer AL2016W).

When I suspend by closing the lid on my laptop, I see the login screen on the monitor for second before it suspends.

Then after I resume (by opening the lid) the login screen is there on the external monitor and after I log in the laptop screen is not showing anything. I think the laptop screen is disabled.

When I open display properties it turns on the laptop screen.

ProblemType: Bug
Architecture: amd64
CheckboxSubmission: b503beacb1fcaa6399875cf210a9514e
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
Date: Tue Mar 23 19:07:37 2010
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100113)
MachineType: LENOVO 7465CTO
Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-16-generic root=UUID=6886f363-9f1c-4c1d-99da-273344848f40 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SourcePackage: xserver-xorg-video-intel
Uname: Linux 2.6.32-16-generic x86_64
dmi.bios.date: 11/10/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET61WW (3.11 )
dmi.board.name: 7465CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6DET61WW(3.11):bd11/10/2009:svnLENOVO:pn7465CTO:pvrThinkPadX200s:rvnLENOVO:rn7465CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7465CTO
dmi.product.version: ThinkPad X200s
dmi.sys.vendor: LENOVO
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: lucid
 architecture: x86_64
 kernel: 2.6.32-16-generic

[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
     Subsystem: Lenovo Device [17aa:20e4]

[Michael Hudson-Doyle (mwhudson)]

I have very similar symptoms on a macbook2,1.

Bug 377598 makes it even more annoying -- have to alt-f2 and launch gnome-display-properties to get back to something I can see. And then the two screens have swapped around in layout.

[Michael Hudson-Doyle (mwhudson)]

Here's my lspci -vv.

This behavior is new with lucid btw.

[Michael Hudson-Doyle (mwhudson)]

For me at least, this is worse than I thought: I don't get LVDS back even when the external monitor is not plugged in.

[Michael Hudson-Doyle (mwhudson)]

In fact, on opening the laptop, the machine doesn't resume. Pressing the power button resumes, but doesn't activate the screen. Ctrl-alt-f1 ctrl-alt-f7 gets me back to the unlock screen.

At least I've found a workaround :-)

[Bryce Harrington (bryce)]

Michael, your issue might be something else, I'd suggest you file a new bug for it against the kernel.

[Chris Halse Rogers (raof)]

There were a couple of kernel fixes for problems matching your description applied to the 2.6.32-18 and 2.6.32-19 kernels. Can you re-test with the current 2.6.32-19 kernel to check whether this problem has been fixed? Thanks.

[Bryce Harrington (bryce)]

Hmm, well in any case with -intel output setup is now done by the kernel drm kms code, so refiling to the kernel in case it still remains unfixed.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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