Comment 1 for bug 160309

I can confirm this with a Dell Inspiron 1420, running Gutsy, except that the computer completely freezes and it has to be turned off with the power button. My Xorg.0.log.old ends with:

Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0x7ff80001 pgetbl_err: 0x0
ipeir: 0 iphdr: 7808000b
LP ring tail: 470 head: 0 len: 1f001 start 0
Err ID (eir): 0 Err Status (esr): 1 Err Mask (emr): ffffffdf
instdone: e5fafd instdone_1: ffffc
instpm: 0
memmode: 0 instps: 8001e02c
HW Status mask (hwstam): fff8dffe
IRQ enable (ier): 2 imr: fff80000 iir: 20
acthd: 4a19618 dma_fadd_p: 4a19700
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 8e7abdf3
TD_CTL 0 / 0
space: 129928 wanted 131064
(II) intel(0): [drm] removed 1 reserved context for kernel
(II) intel(0): [drm] unmapping 8192 bytes of SAREA 0xf8c49000 at 0xb7ef8000

Fatal server error:
lockup

(II) AIGLX: Suspending AIGLX clients for VT switch
Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0x7ff80001 pgetbl_err: 0x0
ipeir: 0 iphdr: 7808000b
LP ring tail: 478 head: 0 len: 1f001 start 0
Err ID (eir): 0 Err Status (esr): 1 Err Mask (emr): ffffffdf
instdone: e5fafd instdone_1: ffffc
instpm: 0
memmode: 0 instps: 8001e02c
HW Status mask (hwstam): fff8dffe
IRQ enable (ier): 2 imr: fff80000 iir: 20
acthd: 4a19618 dma_fadd_p: 4a19700
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 8e7abdf3
TD_CTL 0 / 0
space: 129920 wanted 131064

FatalError re-entered, aborting
lockup