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GL XScreensavers causing KDE crash

Hey,
After a recent update to Slack64 current, GL xscreensavers cause KDE to crash every single time they are run. The crash actually happens as the screensaver exits (ie it runs fine until a mouse or keyboard event, then crashes).

Here's the relevant Xorg output:

Code:

(EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable



Backtrace:

0: /usr/bin/X (xorg_backtrace+0x28) [0x4a02d8]

1: /usr/bin/X (0x400000+0x60fc9) [0x460fc9]

2: /lib64/libc.so.6 (0x7f9f0995d000+0x340b0) [0x7f9f099910b0]

3: /usr/lib64/xorg/modules/dri/i965_dri.so (0x7f9f077ed000+0x41ec0) [0x7f9f0782eec0]

4: /usr/lib64/xorg/modules/dri/i965_dri.so (0x7f9f077ed000+0x35ad1) [0x7f9f07822ad1]

5: /usr/lib64/xorg/modules/dri/i965_dri.so (0x7f9f077ed000+0x37c7a) [0x7f9f07824c7a]

6: /usr/lib64/xorg/modules/extensions/libglx.so (0x7f9f08ea0000+0x35d23) [0x7f9f08ed5d23]

7: /usr/lib64/xorg/modules/extensions/libglx.so (0x7f9f08ea0000+0x38463) [0x7f9f08ed8463]

8: /usr/bin/X (0x400000+0x2def1) [0x42def1]

9: /usr/bin/X (0x400000+0x21ffe) [0x421ffe]

10: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x7f9f0997be5d]

11: /usr/bin/X (0x400000+0x21bb9) [0x421bb9]

Segmentation fault at address 0x40



Fatal server error:

Caught signal 11 (Segmentation fault). Server aborting

As I said this is a fairly new problem. I think it started happening after a recent update (but not the most recent one), though it may just be I didn't notice it before because I hadn't run any GL screensavers.

I'm using the i915 Intel module.

Any ideas?

KDE 4.5.5 (Slackware 13.37) or my own KDE 4.6.1 ?
I have the same issue, on i915 driver, with GL screensavers, but only in KDE 4.6.1 (I do not run 4.5.5)... I also tested the same screensavers in XFCE, but they are fine there.

Eric

Hi Eric,
This is under 4.5.5. I was actually thinking of upgrading to your 4.6.1 to see if it would solve the problem... evidently not!

I also tried another WM (i3) and GL screensavers work fine there.

So it's probably the compositing desktop that has a bug with the Intel driver.

Eric

I'm having a good experience with my integrated intel chips, mesa in /testing and kernel 2.6.38.

it's just an idea, but you can try upgrading mesa to that and see if that fixes it.

Quote:

Originally Posted by Alien Bob (Post 4307698)

So it's probably the compositing desktop that has a bug with the Intel driver.

Eric

Yep! I confirm! I hit the same bug in the past.

@OP. I suggest you to jump on 2.6.38.2 (new&better DRM) and to use Mesa 7.10.1, or, better, the GIT HEAD version.

I actually tried a 38.2 Kernel last night with no luck. When I get home I'll try a new Mesa as well.

Thanks all.

The mesa in /testing made no difference to me here.

Eric

Quote:

Originally Posted by Alien Bob (Post 4307712)

The mesa in /testing made no difference to me here.

Eric

Then, try to use the packages located here: http://ftp.darkstarlinux.ro/people/darth/MESA/

These zero-day packages, combined with 2.6.38.2 and your KDE-4.6.1 works fine for me, with a i915G / an G31 (embedded)-video. :D

If you are amazed about the MESA's package size, don't worry! It's true! It have 36,788KB. You just see the future of MESA, Gallium with all jingles & bells, including LLVM & Co. ;)

EDIT: I forgot to upload the source packages too. Now are there.

The Mesa in testing/ didn't work for me either. I'll take a look at Vader's next.

Quote:

Originally Posted by brixtoncalling (Post 4308425)

I'll take a look at Vader's next.

Then, you want something fresh, right? ;)

There is the today build from Git HEAD. Remember to install/upgrade all these packages. :)

http://ftp.darkstarlinux.ro/slackware/xdrivers/