xv video freezes computer if display is rotated [GMA945]

Hi, thanks but there isn't enough information to troubleshoot this problem. Please attach your Xorg.0.log from after one of these lockups, and collect a full backtrace. See http://wiki.ubuntu.com/X/Backtracing for directions.

I just got a second laptop that allowed me to do this Backtracing.
Never did it before so plz tell me if i did something wrong.

Sick machine:
boots up, i rotate the screen.

remote machine:
loggin into sick machine, starting gdb:
(gdb) attach 5432
Attaching to program: /usr/bin/Xorg, process 5432
.
.
.
(gdb) cont
Continuing.

sick machine:
i start playing a video with the display being rotated, totem is using xv.

Now the display shows a solid color but i can hear the sound of the video.
The color seems to be random, currently its all purple, last time it was all blue and i remember seeing all white.
Playing the video does not give any new output in gdb, it still shows:

(gdb) cont
Continuing.

Now i enter ctrl+c in gdb to abort Xorg (im not sure why ctrl+c in gdb aborts xorg on the sick machine).
The output of gdb is
Program received signal SIGINT, Interrupt.
[Switching to Thread 0xb7c8aa30 (LWP 5432)]
0xb7fa9410 in __kernel_vsyscall ()

but the video keeps playing for a couple of seconds until it stops.

The screen is still all purple.
Hitting ctrl+alt+backspace does not change that and i have to reboot the machine.

I forgot to look into Xorg.log before i rebooted so i do it again.

i log into sick machine and run
tail /var/log/Xorg.0.log

rotating the screen gives a'lot of output

playing a video without the screen rotated gives this output:
(II) intel(0): xf86BindGARTMemory: bind key 2 at 0x02454000 (pgoffset 9300)

i rotate the screen and play the video again.
(II) intel(0): xf86BindGARTMemory: bind key 3 at 0x029f8000 (pgoffset 10744)

The screen is all green now.
I kill Xorg remotely, the screen switches between all green and all black a few times.

I dont know if the Xorg.log output from killing Xorg is interesting to you but here it is:
Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0xbffc0001getbl_err: 0x0
ipeir: 0 iphdr: 1810000
LP ring tail: c350 head: c32c len: 1f801 start 0
eir: 0 esr: 0 emr: ffff
instdone: ffc0 instpm: 0
memmode: 306 instps: f0000
hwstam: ffff ier: 0 imr: ffff iir: 0
Ring at virtual 0xa785a000 head 0xc32c tail 0xc350 count 9
 0000c2ac: 00a7c6e1
 0000c2b0: 54300004
 0000c2b4: 03f01600
 0000c2b8: 00cc0190
 0000c2bc: 00e703cc
 0000c2c0: 00640000
 0000c2c4: 00eaeaea
 0000c2c8: 02000011
 0000c2cc: 00000000
 0000c2d0: 54300004
 0000c2d4: 03f01600
 0000c2d8: 00cc02d6
 0000c2dc: 023102e5
 0000c2e0: 00640000
 0000c2e4: 00eaeaea
 0000c2e8: 54300004
 0000c2ec: 03f01600
 0000c2f0: 00cc0190
 0000c2f4: 023102d6
 0000c2f8: 00640000
 0000c2fc: 00ffffff
 0000c300: 02000011
 0000c304: 00000000
 0000c308: 54300004
 0000c30c: 03f01600
 0000c310: 00670190
 0000c314: 023102d6
 0000c318: 00640000
 0000c31c: 00eaeaea
 0000c320: 02000011
 0000c324: 00000000
 0000c328: 01810000
 0000c32c: 00000000
Ring end
space: 131028 wanted 131064

Fatal server error:
lockup

Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0xbffc0001getbl_err: 0x0
ipeir: 0 iphdr: 1810000
LP ring tail: c358 head: c32c len: 1f801 start 0
eir: 0 esr: 0 emr: ffff
instdone: ffc0 instpm: 0
memmode: 306 instps: f0000
hwstam: ffff ier: 0 imr: ffff iir: 0
Ring at virtual 0xa785a000 head 0xc32c tail 0xc358 count 11
 0000c2ac: 00a7c6e1
 0000c2b0: 54300004
 0000c2b4: 03f01600
 0000c2b8: 00cc0190
 0000c2bc: 00e703cc
 0000c2c0: 00640000
 0000c2c4: 00eaeaea
 0000c2c8: 02000011
 0000c2cc: 00000000
 0000c2d0: 54300004
 0000c2d4: 03f01600
 0000c2d8: 00cc02d6
 0000c2dc: 023102e5
 0000c2e0: 00640000
 0000c2e4: 00eaeaea
 0000c2e8: 54300004
 0000c2ec: 03f01600
 0000c2f0: 00cc0190
 0000c2f4: 023102d6
 0000c2f8: 00640000
 0000c2fc: 00ffffff
 0000c300: 02000011
 0000c304: 00000000
 0000c308: 54300004
 0000c30c: 03f01600
 0000c310: 00670190
 0000c314: 023102d6
 0000c318: 00640000
 0000c31c: 00eaeaea
 0000c320: 02000011
 0000c324: 00000000
 0000c328: 01810000
 0000c32c: 00000000
Ring end
space: 131020 wanted 131064

FatalError re-entered, aborting
lockup

Good, you've got most of the process but looks like you missed the most important step - issuing the "backtrace full" command to gdb once it's locked up. Please reproduce the crash once again and do that command to get a backtrace.

sick machine:

playing video with screen rotated.
screen turns dark red, audio still playing.

remote machine:

aborting server with ctrl+c

Program received signal SIGINT, Interrupt.
[Switching to Thread 0xb7c76a30 (LWP 5423)]
0xb7f95410 in __kernel_vsyscall ()
(gdb)

audio keeps playing for a couple of seconds

(gdb) backtrace full

#0 0xb7f95410 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb7de484d in select () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2 0x081b2275 in WaitForSomething (pClientsReady=0xbfdf5df0)
    at ../../os/WaitFor.c:236
 i = <value optimized out>
 waittime = {tv_sec = 0, tv_usec = 512000}
 wt = (struct timeval *) 0xbfdf5db0
 timeout = <value optimized out>
 clientsReadable = {fds_bits = {0 <repeats 32 times>}}
 clientsWritable = {fds_bits = {0, 0, 259, 304, -1075880728, 1,
    -1075880604, -1210170648, -1075880604, 27, -1075880712, 136163204, 1, 32,
    -1075880696, 136039262, 27, -1075880604, 1, -1212132234, 138540840,
    136163204, -1075880664, 136034255, 151338640, -1075880604, 1, 136015388,
    150963448, -1075880572, -1075880568, 136013494}}
 curclient = <value optimized out>
 selecterr = 65668378
 nready = <value optimized out>
 devicesReadable = {fds_bits = {28311856, 16974128, 0, 28311856, 0,
    65667349, 35128602, 134814016, 136025225, 136163204, -1075880824,
    134798261, 0, 65667349, 85590552, 0, 65667349, 85590552, 0, -1212095872,
    259, 304, -1075880712, -1212144120, 138540840, 139564232, 136680056,
   151354080, 0, 0, 432, 304}}
 now = 21967069
 someReady = 0
#3 0x0808d69d in Dispatch () at ../../dix/dispatch.c:425
 result = <value optimized out>
 client = (ClientPtr) 0x841f728
 nready = -1
 start_tick = 697460
#4 0x0807471b in main (argc=10, argv=0xbfdf6324, envp=0x0)
    at ../../dix/main.c:452
 i = 1
 error = 136163204
 xauthfile = <value optimized out>
 alwaysCheckForInput = {0, 1}

Closing, as per PS in description that it works with the released Hardy.

I have this problem in Hardy with all current updates. I posted my Xorg log to bug #225400, which might be a duplicate.