X Server lockup with VIA CLE266 chipset

Darryl Bond dbond at nrggos.com.au
Mon Feb 23 03:59:26 UTC 2009

I have a number of VIA thin clients with the CLE266 Video which comes up
with the openchrome driver.
We run the Citrix ICA client as a local application on top of LTSP and
the Xserver locks up when an menu is selected in the Citrix session.

I managed to get the tail end of the Xorg.1.log which looks like this
[mi] EQ overflowing. The server is probably stuck in an infinite loop.

0: X(xorg_backtrace+0x3b) [0x812bc5b]
1: X(mieqEnqueue+0x289) [0x810b379]
2: X(xf86PostMotionEventP+0xc2) [0x80d4262]
3: X(xf86PostMotionEvent+0x68) [0x80d43c8]
4: /usr/lib/xorg/modules/input//evdev_drv.so [0xc0ed25]
5: X [0x80bcdb7]
6: X [0x80ac91e]
7: [0x62b400]
8: /usr/lib/xorg/modules/drivers//openchrome_drv.so(viaFlushPCI+0xad)
9: /usr/lib/xorg/modules/drivers//openchrome_drv.so [0x76c9de]
10: /usr/lib/xorg/modules//libxaa.so(XAAFillSolidRects+0x9a) [0x80878a]
11: /usr/lib/xorg/modules//libxaa.so [0x808e90]
12: /usr/lib/xorg/modules//libxaa.so(XAAClipAndRenderRects+0x1e9) [0x807ef9]
13: /usr/lib/xorg/modules//libxaa.so(XAAPolyFillRect+0x20d) [0x8089bd]
14: /usr/lib/xorg/modules//libxaa.so [0x84580a]
15: X [0x816ff84]
16: X(ProcPolyFillRectangle+0x100) [0x8082e00]
17: X(Dispatch+0x34f) [0x8085e9f]
18: X(main+0x47d) [0x806b71d]
19: /lib/libc.so.6(__libc_start_main+0xe5) [0x48e6e5]
20: X [0x806ab01]
[mi] mieqEnequeue: out-of-order valuator event; dropping.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] mieqEnequeue: out-of-order valuator event; dropping.

This looks very similar to this bug

It would seem that I need to try setting the xorg.conf:
Option "NoAccel" "on"
Option "AccelMethod" "XAA"

How do I do this with LTSP these days?


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