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Bug#400505: marked as done (xserver-xorg-video-mga: hangs on low AGP memory )

Your message dated Sun, 13 May 2007 23:50:09 +0200
with message-id <20070513215009.GA4643@pluto.sol.de>
and subject line Bug#400505: xserver-xorg-video-mga: hangs on low AGP memory
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)
--- Begin Message --- 
Package: xserver-xorg-video-mga
Severity: important
Version: 1.4.4.dfsg.1-1

Using an OpenGL application I noticed a strange behaviour of xorg:
The application and probably the whole X server freezes but I can still
move the mouse (there is no access to the window manager menus). 
Logging into the system via ssh works and I noticed that xorg consumes
95-99% of the CPU. I killed it after a few hours with signal 9, the screen
gets blanked but I still cannot access a virtual console.
Starting X from ssh seems not to work (stops after displaying
(==) Using config file: "/etc/X11/xorg.conf").

dmesg reports

[drm] Initialized drm 1.0.1 20051102
ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 10 (level, low) -> IRQ 10
[drm] Initialized mga 3.2.1 20051102 on minor 0
agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode
[drm:mga_do_agp_dma_bootstrap] *ERROR* Unable to bind AGP memory: -22
[drm] Initialized card for PCI DMA.

The graphic card is a Matrox Millenium G400 AGP:
01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400/G450 (rev 04)
01:00.0 0300: 102b:0525 (rev 04)

Driver: mga

BIOS settings:
AGP Aperture Size 4M
AGP-4X Mode Disabled
AGP Driving Control Auto

Increasing 4MB to 128MB help to prevent this problem but Xorg should keep
usable even with 4MB.

I attached the log which ends with
(EE) MGA(0): [dri] Idle timed out, resetting engine...

PS: The (default!??) resolution configured for this card (not long time ago)
was "1280x920", not "1280x1024".

Jens

Attachment: Xorg.0.log.bz2
Description: Binary data


--- End Message ---
--- Begin Message --- 
Hi Brice,

On Mon, May 07, 2007 at 03:15:52PM +0200, Brice Goglin wrote:
> If this hang on low AGP memory still happens with the latest MGA driver
> in unstable (1.4.6), could you also your xorg.conf file? Also, do you

the error is no longer reproducable with 1:7.2-3 and seems to be fixed.

> have a matroxfb-enabled console? There are some known problems with
> conflicts between matroxfb and X, but they don't seem similar to your
> problem.

No, I do not use a framebuffer console.

Jens

--- End Message ---
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