Ubuntu
xserver-xorg-video-ati package

ATI radeon - complete system lock-up with "AGPFastWrite" option

Bug #162888 reported by Vadim Peretokin
4
Affects Status Importance Assigned to Milestone
xserver-xorg-video-ati (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

I'm using Ubuntu 7.10, Radeon 7500 (on a ThinkPad T40), and the "radeon" driver in my xorg.conf.

Since upgrading to Gutsy from Fiesty, I'm have a whole lot of problems - but I'm not sure what are they related to.

The problems are that certain graphical apps completely freeze up my laptop now, while they were fine in 7.04. For example, neverball completely locks my laptop up (I can only move the mouse, but the system is completely unresponsive. I have to hard reboot it), while it was fine in 7.04. Along with Thunder&Lightning.

Also while the Blender screen was really weird on Fiesty, when I tried it now, it completely locked my laptop up too - similarly to neverball and tnl. But thankfully this time it unfroze after 5 mins or so (bad me was testing with important apps open and data not saved).

Glxinfo reports the following:

OpenGL vendor string: Tungsten Graphics, Inc.
OpenGL renderer string: Mesa DRI Radeon 20061018 AGP 4x x86/MMX/SSE2 TCL
OpenGL version string: 1.3 Mesa 7.0.1

Is there anything else that I can provide? This is really annoying.

See original description
Revision history for this message
Tormod Volden (tormodvolden) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please attach your X server configuration file (/etc/X11/xorg.conf) and X server log file (/var/log/Xorg.0.log) to the bug report as individual uncompressed file attachments using the "Attachment:" box below. Could you please also try to run without any /etc/X11/xorg.conf and let Xorg autodetect your display and video card? Please also attach the /var/log/Xorg.0.log from this attempt. Thanks in advance.

Changed in mesa:
assignee: nobody → tormodvolden
status: New → Incomplete
Revision history for this message
Vadim Peretokin (vperetokin) wrote :

Thank you for taking time to solve, this, by the way. A whole lot of 3D games lock my system up under different circumstances.

Revision history for this message
Vadim Peretokin (vperetokin) wrote :
Revision history for this message
Vadim Peretokin (vperetokin) wrote :

Okay, I made a copy of my xorg.conf, deleted it, ctrl+alt+backspaced back to the beginning.

There is still no xorg.conf file, but here is the log file.

I'll see if the games are locking up again.

Revision history for this message
Vadim Peretokin (vperetokin) wrote :

That worked, sort of.

All of the games work now, with Compiz on and off - but it's a lot more glitcher with compiz on now (it was before too, but now it's... weird all over the screen and flashing).

And the performance of the card has decreased greatly also (games are at a very low fps, when I rotate the cube, it's very jagged).

I did modify my xorg.conf to be 16 colors and added some options for the radeon driver previously - am I safe to put that in again? Because with those exact modifications my card was doing really well in 7.04.

Revision history for this message
Tormod Volden (tormodvolden) wrote :

I recommend to not use the "AGPFastWrite" option, it is not supported and is asking for trouble. In previous driver versions it was hardcoded to off (and ignored in xorg.conf), that's probably why it was stable before. The other options are pretty safe to use and some are even default values anyway,

Revision history for this message
Vadim Peretokin (vperetokin) wrote :

I see. Thank you very much for your assistance then.

Could this bug report be marked then?

Revision history for this message
Tormod Volden (tormodvolden) wrote :

OK, I'll close the bug then. Please reopen if it locks up even without that "AGPFastWrite" option.

description: updated
Changed in mesa:
assignee: tormodvolden → nobody
status: Incomplete → Invalid
Revision history for this message
Vadim Peretokin (vperetokin) wrote :

Sorry, but there is no more xorg.conf file anymore still.

Should I just use my old saved one, without that option?

Revision history for this message
Tormod Volden (tormodvolden) wrote :

Yes, you can use the old one, but I recommend generating a new one with "sudo dpkg-reconfigure -phigh xserver-xorg" and then just add as few modifications as possible.

Revision history for this message
Vadim Peretokin (vperetokin) wrote : Re: [Bug 162888] Re: ATI radeon - complete system lock-up with "AGPFastWrite" option

That worked, thank you.

On Nov 17, 2007 5:08 AM, Tormod Volden <email address hidden>
wrote:

> Yes, you can use the old one, but I recommend generating a new one with
> "sudo dpkg-reconfigure -phigh xserver-xorg" and then just add as few
> modifications as possible.
>
> --
> ATI radeon - complete system lock-up with "AGPFastWrite" option
> https://bugs.launchpad.net/bugs/162888
> You received this bug notification because you are a direct subscriber
> of the bug.
>

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