Comment 4 for bug 154343

I just used startx over ssh to record any error messages. I was using blender and tried to switch desktops. Everything froze and ctrl+alt+F1, ctrl+alt_del didn't work. The mouse was also locked in place. But ssh still worked so here is the message

X: warning; process set to priority -1 instead of requested priority 0

X Window System Version 1.3.0
Release Date: 19 April 2007
X Protocol Version 11, Revision 0, Release 1.3
Build Operating System: Linux Ubuntu (xorg-server 2:1.3.0.0.dfsg-12ubuntu8)
Current Operating System: Linux philip-desktop 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686
Build Date: 29 September 2007
 Before reporting problems, check http://wiki.x.org
 to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
 (++) from command line, (!!) notice, (II) informational,
 (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Oct 29 16:15:35 2007
(==) Using config file: "/etc/X11/xorg.conf"
(II) Module already built-in
(II) Module already built-in
(II) Module already built-in
AUDIT: Mon Oct 29 16:15:41 2007: 7280 X: client 14 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:41 2007: 7280 X: client 14 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:41 2007: 7280 X: client 14 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:43 2007: 7280 X: client 16 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:45 2007: 7280 X: client 16 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:47 2007: 7280 X: client 16 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:49 2007: 7280 X: client 16 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:51 2007: 7280 X: client 16 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:53 2007: 7280 X: client 16 rejected from local host (uid 1000)
AUDIT: Mon Oct 29 16:15:55 2007: 7280 X: client 16 rejected from local host (uid 1000)
Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0x7f780001 pgetbl_err: 0x0
ipeir: 0 iphdr: bf750002
LP ring tail: 13728 head: 13290 len: 1f001 start 0
Err ID (eir): 0 Err Status (esr): 1 Err Mask (emr): ffffffdf
instdone: ffe5fafd instdone_1: fffff
instpm: 0
memmode: 0 instps: 8001e022
HW Status mask (hwstam): fffedffe
IRQ enable (ier): 82 imr: fffe0000 iir: 40
acthd: 248d688 dma_fadd_p: 248d740
ecoskpd: 307 excc: 0
cache_mode: 6800/180
mi_arb_state: 44
IA_VERTICES_COUNT_QW 0/0
IA_PRIMITIVES_COUNT_QW 0/0
VS_INVOCATION_COUNT_QW 0/0
GS_INVOCATION_COUNT_QW 0/0
GS_PRIMITIVES_COUNT_QW 0/0
CL_INVOCATION_COUNT_QW 0/0
CL_PRIMITIVES_COUNT_QW 0/0
PS_INVOCATION_COUNT_QW 0/0
PS_DEPTH_COUNT_QW 0/0
WIZ_CTL 0
TS_CTL 0 TS_DEBUG_DATA 391b7262
TD_CTL 0 / 0
space: 129888 wanted 131064

Fatal server error:
lockup

Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0x7f780001 pgetbl_err: 0x0
ipeir: 0 iphdr: bf750002
LP ring tail: 13730 head: 13290 len: 1f001 start 0
Err ID (eir): 0 Err Status (esr): 1 Err Mask (emr): ffffffdf
instdone: ffe5fafd instdone_1: fffff
instpm: 0
memmode: 0 instps: 8001e022
HW Status mask (hwstam): fffedffe
IRQ enable (ier): 82 imr: fffe0000 iir: 40
acthd: 248d688 dma_fadd_p: 248d740
ecoskpd: 307 excc: 0
cache_mode: 6800/180
mi_arb_state: 44
IA_VERTICES_COUNT_QW 0/0
IA_PRIMITIVES_COUNT_QW 0/0
VS_INVOCATION_COUNT_QW 0/0
GS_INVOCATION_COUNT_QW 0/0
GS_PRIMITIVES_COUNT_QW 0/0
CL_INVOCATION_COUNT_QW 0/0
CL_PRIMITIVES_COUNT_QW 0/0
PS_INVOCATION_COUNT_QW 0/0
PS_DEPTH_COUNT_QW 0/0
WIZ_CTL 0
TS_CTL 0 TS_DEBUG_DATA 391b7262
TD_CTL 0 / 0
space: 129880 wanted 131064

FatalError re-entered, aborting
lockup

xinit: connection to X server lost.