Public bug reported: Binary package hint: xserver-xorg-video-intel
A few minutes after resuming from suspend or hibernate, the display suddenly freezes. This is not triggered by anything obvious (such as starting a particular program), just randomly after some key presses or mouse movements. After display freezing, I can still ssh into the box. The entire user session continues to run, I can start programs, etc. I didn't see anything interesting in dmesg and Xorg.0.log, gdb stack trace is totally useless, stracing the X server shows that it's usually waiting in an ioctl(), and receives keyboard and mouse events. I'll attach detailled logs in a minute. The single change that I spotted was in the registers: --- regs.afterhibernate.txt 2009-03-07 08:24:27.000000000 +0100 +++ regs.freeze.txt 2009-03-07 08:35:18.000000000 +0100 @@ -140 +140 @@ -(II): MI_MODE: 0x00000200 +(II): MI_MODE: 0x00000000 This consistently changes like this after such a freeze happens. Whenever I look at MI_MODE in a working system, it is always 0x00000200. No other registers change after the freeze. This started happening two or three weeks ago. I am on Ubuntu jaunty (development release), which closely tracks X.org upstream releases. It never happened until then. It definitively did not happen with -intel 2.4.1/X.org 1.5.2/Linux 2.6.27. Now I have -intel 2.6.1/X.org 1.6.0/Linux 2.6.28.7. My hardware: Intel mobile 945GM Intel Core 2 Duo 1.2 1 GB RAM Internal 1280x800 LVDS (switched off) External 1280x1024 TFT I attached logs and more details in the upstream bug report at https://bugs.freedesktop.org/show_bug.cgi?id=20520 ** Affects: xserver-xorg-video-intel Importance: Unknown Status: Unknown ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New ** Bug watch added: freedesktop.org Bugzilla #20520 https://bugs.freedesktop.org/show_bug.cgi?id=20520 ** Also affects: xserver-xorg-video-intel via https://bugs.freedesktop.org/show_bug.cgi?id=20520 Importance: Unknown Status: Unknown -- [i945] screen freezes a few minutes after resuming https://bugs.launchpad.net/bugs/339091 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
