[intrepid] X locks up or crashes when screensaver activates

I'm wondering if this is somehow related to bug 261101

while X is in the broken state, it seems to be stuck in a pretty simple loop. Attached is the output of:

sudo strace -Ff -p 7677 2>x.log

Disabling compiz prevents this crash, so it's clearly something to do with the xorg driver or the kernel portions

Same issue in my system with gnome and kde. I have Intel X3500 graphic card

For me, .27-2-generic seems to work fine (GM965), but others are still having this bug (at least on 945).

i see it on a GM965/GL960, but as for Chris it goes away for me if i disable compiz.

As of today's updates, I still see it on a Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c). Anything I can do to help debug?

A bit more information:

I performed an strace as well and got the same results as Chris does above. I took the IOCTL code and decoded it according to the documentation in the Linux Kernel. Based on that, it decodes to a Read/Write IOCTL in driver 'd', function 3A. Driver 'd' is assigned (primarily) to the drm driver. The drm driver uses function 3A for DRM_IOCTL_WAIT_VBLANK. Unfortunately, that's about where my understanding died.

I'm trying to figure out where it's called in the X code, but I'm not sure where to track it down. Maybe, however, this will help someone else figure it out. :)

btw, I can again reproduce it with the .27-2 kernel, so it's not fixed for me either.

To tell the truth I have this problem also in Hardy + backports! Have you tried Hardy too?

I've tried this with mesa 7.1rc3 debs that I happened to have available, and with those it didn't hang, so the regression is in mesa..

I can confirm this bug with the most recent Alpha 5 updates (9/11/08). Anytime the screensaver occurs or the screen is locked, the computer become unresponsive. Keyboard and mouse is unresponsive. The screen goes black, and the screensaver does not start. This occurs when compiz is enabled.

The screensaver and screen locking occurs normally (without crashing) when compiz is disabled.

0022 (torkel) tjaalton: any chance the gnome-screensaver/compiz locking X bug is fixed in the upload?
0022 (tjaalton) torkel: no, it's in mesa/drm
0023 (torkel) tjaalton: doh. I have been hitting badly with that one lately :-(
0023 (tjaalton) then as a workaround, copy http://users.tkk.fi/~tjaalton/dpkg/drirc to /etc and restart your session

I've tried what was suggested, but doesn't work for me though...

This workaround doesn't work for me - it keeps repeatedly freezing.

hm, that's too bad.. I'll revert the commit anyway and upload new mesa.

Looks like the last update had some mesa stuff in it. I can now confirm the gnome-screensaver working correctly.

FYI:

$ dpkg -l \*mesa*|grep ^ii|awk {'print $2" "$3'}
libgl1-mesa-dev 7.1-1ubuntu2
libgl1-mesa-dri 7.1-1ubuntu2
libgl1-mesa-glx 7.1-1ubuntu2
libglu1-mesa 7.1-1ubuntu2
libglu1-mesa-dev 7.1-1ubuntu2
mesa-common-dev 7.1-1ubuntu2
mesa-utils 7.1-1ubuntu2

Please try the latest mesa and report back if it works/doesn't work.

Since this affects a lot of people and is kind of a data loss bug, the release team decided to mark this as critical for the beta.

Seems to work for me too

7.1-1ubuntu2 fixes this for me as well (Intel GMA945, i386)

I confirm - 7.1-1ubuntu2 fixed both the screensaver and suspend/hibernate issues on my laptop (Intel Corporation Mobile 945GM/GMS/GME). Thanks!

Seems to work for me too! (GM965/amd64)

Works for me too now - thanks for this! I can have my compiz back!

I think there is sufficient evidence that this workaround works. Thanks Timo!

It's working here!

[Testing Intrepid Ibex - Alpha 5]

I have this error too. I'm using:

dpkg -l \*mesa*|grep ^ii|awk {'print $2" "$3'}

    libgl1-mesa-dri 7.1-1ubuntu3
    libgl1-mesa-glx 7.1-1ubuntu3
    libglu1-mesa 7.1-1ubuntu3
    mesa-utils 7.1-1ubuntu3

My card is:
rolando@defiant:~/reporting$ lshw -C display
WARNING: you should run this program as super-user.
  *-display UNCLAIMED
       description: VGA compatible controller
       product: M22 [Mobility Radeon X300]
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list
       configuration: latency=0

I just ran into this same bug having upgraded to Intrepid from Hardy (Kubuntu) using do_release_upgrade.

One thing I note is that in the KDE desktop effects (advanced options) section the "Use VSync" option was enabled, so I've disabled that now and will see if it reoccurs in case it's related to the VBLANK issue mentioned above.

Hi,

is this problem fixed? I am using Ubuntu 8.10 with latest updates with fxgrl drivers and compiz, and I noticed in last month time that laptop freezes often. Most likely when screensaver is running, but it doesn't have to be screensaver. Sometimes I see that System monitor is working, but no keyboard is working. Mouse works, but I can't click anywhere. One time I was able to login with ssh and I saw that process X is running at 100%, since I have Core 2, second core of the cpu was still responsive ;-)
Depending on the cpu usage (at least I think), sometimes I can press power button and I get screen with countdown from 60 (with hibernate, restart, halt, suspend) but I can't press Alt-R to restart or something. I can just wait 60 secs to halt. But my problem is that I use VmWare Workstation and started machines are killed.

Is this fixed in 9.04, because my desktop with 9.04 and nvidia doesn't have this problems?

Thank you