System freezes after putting display to sleep when inactive

[Thomas Novin]

Hello

For the fourth time now my system has completely frozen and all of these times it's after being inactive so the display goes to sleep.

Nothing seems to work after the freeze. Tried toggling caps lock and num lock but LEDs doesn't change. I can however reboot the system with ctrl-alt-prt scr + REISUB. I have checked in some logfiles in /var/log but I haven't found that anything is printed (kern.log or syslog). The reboot I do with "REISUB" is logged though.

(II) intel(0): Integrated Graphics Chipset: Intel(R) 965GM

ii xserver-xorg-video-intel 2:2.2.1-1ubuntu13.3
ii xserver-xorg-core 2:1.4.1~git20080131-1ubuntu9.1

$ lsb_release -rd
Description: Ubuntu 8.04
Release: 8.04

The system is a Toshiba T61 88986DG.

[Thomas Novin (thomasn80)]

Today another freeze. This time I could see everything on the screen and even move the mouse but everything else was completely frozen.

Also this time REISUB worked.

I will run a memtest86 to see if anything strange is found there..

[Thomas Novin (thomasn80)]

I have disabled "Put display to sleep when inactive" and my system hasn't hung since. Before it happened often, several times per week and now not in over two weeks.

[Thomas Novin (thomasn80)]

I think I got this bug just now. I had been away for 1 hour and when I came back I logged back in to the system (it was locked) but everything was completely frozen except for the mouse.

I could not to CTRL-ALT-F1.

When I did the REISUB procedure somewhere in the beginning (after REI) something changes on the screen, a big black bar appears in the bottom and some "garbage". Then when I have written the B the system reboots OK.

[Yury Jajitzky (elruso)]

same bug here! i've installed 8.04.1 in 2 compaq's v2000 and PIV 1,8 Ghz at home... i've disabled "put display to sleep when inactive" too. this happens everytime when computers are inactive

[Mathieu Pellerin (nirvn-asia)]

My Dell Latitude D830 is showing the exact same symptoms on Ubuntu Karmic (updated to June 2007). The same laptop was however fine with Ubuntu Jaunty.

Devs, is there anything we can do to help narrow down issue?

[Thomas Hotz (thotz-deactivatedaccount)]

Marking the bug as confirmed because it happens to several users.

[penalvch (penalvch)]

ThomasNovin, thank you for reporting this and helping make Ubuntu better. Hardy desktop reached EOL on May 12, 2011.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We were wondering if this is still an issue in a supported release? 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 linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the kernel in the mainline kernels archive directory daily folder. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.10-rc2

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

Helpful bug reporting tips:
https://help.ubuntu.com/community/ReportingBugs

[Thomas Novin (thomasn80)]

5 years later? I think I have switched computer twice since..

[Thomas Hotz (thotz-deactivatedaccount)]

Closing this bug.