[Bug 1379] X lockup: Error in I810WaitLpRing()

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https://freedesktop.org/bugzilla/show_bug.cgi?id=1379        
   




------- Additional Comments From mgc8 at rdslink.ro  2004-11-09 13:15 -------
I have a similar problem: 
i815 chipset with integrated graphics, running perfectly on the same machine
with kernel 2.4.25. Also ran ok with kernel 2.6.5 but I didn't test it much
because of other problems with that kernel.

Now, trying kernel 2.6.9 produces this: X is unable to start, I see a black
screen and the X cursor, then it freezes and the screen is filled with vertical
coloured lines. The computer is alive though, I can ssh to it and everything is
alright, only the graphics part is gone.

After halt and power-up, booting into 2.4.25, everything is fine. So I guess it
has something to do with the kernel version and modifications made to the
i810/agpgart/whatever modules.

Here is the relevent part from Xorg.0.log:
==========
Error in I810WaitLpRing(), now is 6684, start is 4683
pgetbl_ctl: 0xf3d0001 pgetbl_err: 0x8b0000
ipeir: 0 iphdr: 385f6c65
LP ring tail: 258 head: 0 len: f001 start 13c0000
eir: 0 esr: 1 emr: 3d
instdone: ff7a instpm: 0
memmode: 4 instps: 810
hwstam: bac7 ier: 0 imr: bac7 iir: 0
space: 64928 wanted 65528

Fatal server error:
lockup


Please consult the The X.Org Foundation support
==========

Relevant portions of xorg.conf:
==========
Section "Module"
    Load        "type1"
    Load        "freetype"
    Load        "extmod"
    Load        "dbe"
    Load        "v4l"
    Load        "synaptics"
EndSection

Section "Device"
    Identifier  "i810"
    Driver      "i810"
    Option      "XvMCSurfaces" "6"
    Option      "BackingStore" "on"
    VideoRam    8192
EndSection
==========

Distribution is Slackware-current, Xorg version is 6.8.1, glibc 2.3.3, gcc 3.3.4
Thanks,
Mihnea        
   
   
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