Machine will not suspend after a second monitor is plugged in

[Mitch Golden]

I have a System76 Gazelle Pro with a 1.5 GB nVidia GeForce GTX 560M graphics card. Suspend works properly when the driver is in normal use, but if an external monitor is connected, it will fail to suspend. The machine hangs, and I powered off. This problem persists even if the external monitor is no longer connected. This happens every time.

I do not have this problem when the nVidia driver is in use.

Running: KDE 4.7.2 on Kubuntu 11.10. with xserver-xorg-video-nouveau:i386 1:0.0.16+git20110411+8378443-1

Related discussion in UbuntuForums: http://ubuntuforums.org/showthread.php?t=1889918

[Mitch Golden (mgolden)]

I don't know what I was thinking when I wrote Kubuntu 4.11 - it is Kubuntu 11.10, Oneiric.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Christian Heimes (heimes)]

I'm affected by this bug, too. My hardware is a Lenovo T61p with nVidia Corporation G84M [Quadro FX 570M] on 11.10 AMD64. The issue with suspend starts as soon as the monitor is plugged into the DVI connector. I'm going to test the VGA plug later.

[Christian Heimes (heimes)]

After an update to Kernel 3.2.0-18-generic the problem seems to be gone. Two suspend attempts worked correctly.

(Note: I had trouble with my network connection after the upgrade. I had to disable apparmor's sbin.dhclient rule to fix it.)

[Stefan Fleiter (stefan-fleiter)]

Works for me, too with current precise.

[penalvch (penalvch)]

Mitch Golden, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p xserver-xorg-video-nouveau REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Launchpad Janitor (janitor)]

[Expired for xserver-xorg-video-nouveau (Ubuntu) because there has been no activity for 60 days.]