System crash when starting X with Cantiga

[Eitan Isaacson]

Binary package hint: xserver-xorg-video-intel

I have a Lenovo T400 which has Cantiga. It has switchable graphics, but in the BIOS I disabled the discrete (radeonhd) card.
When the X server starts the system locks up after it appears that some mode switching happened on the screen.

I couldn't find any useful log information. X and Compiz work fine in Hardy, but Intrepid gives this awful crash. Here are versions of packages I have installed:
xorg 1:7.4~1ubuntu1
xserver-xorg 1:7.4~1ubuntu1
xserver-xorg-core 2:1.4.99.906-2ubuntu2
xserver-xorg-video-intel 2:2.4.1-1ubuntu1

Kernel:
Linux sparky 2.6.27-2-generic #1 SMP Thu Aug 28 17:20:02 UTC 2008 i686 GNU/Linux

A

[Eitan Isaacson (eeejay)]

I just rebuilt xserver-xorg-video-intel with upstream version 2.4.2. And it solved this issue, so I guess it is fixed in upstream.
I think that once this update lands in intrepid, this issue will resolve itself.

[Timo Aaltonen (tjaalton)]

that's strange, since 2.4.1-1ubuntu1 has all the commits that 2.4.2 has but not the one changing the version string.. There are some patches that were applied on the package. Try building without them and find out which patch breaks it.

[Eitan Isaacson (eeejay)]

I just "downgraded" to the intrepid (2:2.4.1-1ubuntu2) version and I this issue disappeared.
I also did a quick diff, and yeah, upstream 2.4.2 is identical to 2.4.1-1ubuntu2.

My two thoughts about this crasher are:
1. Was it something in 2.4.1-1ubuntu1?
2. Is their some other package that is clobbering files in this one? Maybe by installing video-intel I clobbered it back to norm.

[Timo Aaltonen (tjaalton)]

No idea what it was.. anyway closing the bug.

[Evan Klitzke (eklitzke2)]

I would like to reopen this bug -- I have a Thinpad T500 with the same graphics card, and I am experiencing the exact same problem. The screen turns black and X seems to freeze (can't seem to get out of this mode, and tapping the power button doesn't start the shutdown sequence so the system seems to be wedged). FWIW I briefly had rawhide (i.e. fedora 10 preview) on this laptop, I think with the same version of the Intel driver, and that had the same issue.

[Efraim Karsh (efraimkarsh)]

Similar and probably related problem:
Mobile Intel GMA 4500MHD (Cantiga) intrepid ibex (until today) falls back to VGA but recognizes out of the box 1280*800 display. Some visual effects work (Mod4+E works fine) some glx do not (direct rendering: No (LIBGL_ALWAYS_INDIRECT set), GLXFBConfigs none or slow).

What could also be interesting is that leaving the system to sleep/idle screen turns black and X disappears and never comes back, crashing the system. No ttys switching possibilities exist either.
Have to restart per hand.

So this Cantiga drivers inexistence seems to me a rather complex bug.