>From the second log, here's the error message:
Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0x3ffc0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 1810000
LP ring tail: 159e0 head: 159d4 len: 1f801 start 0
eir: 0 esr: 0 emr: ffff
instdone: ffc0 instpm: 0
memmode: 306 instps: f0000
hwstam: fffe ier: 2 imr: 0 iir: 220
Ring at virtual 0xc747e000 head 0x159d4 tail 0x159e0 count 3
00015954: 00000000
00015958: 02000011
0001595c: 00000000
00015960: 02000011
00015964: 00000000
00015968: 02000011
0001596c: 00000000
00015970: 02000011
00015974: 00000000
00015978: 02000011
0001597c: 00000000
00015980: 02000011
00015984: 00000000
00015988: 02000011
0001598c: 00000000
00015990: 02000011
00015994: 00000000
00015998: 02000011
0001599c: 00000000
000159a0: 02000011
000159a4: 00000000
000159a8: 02000011
000159ac: 00000000
000159b0: 02000011
000159b4: 00000000
000159b8: 02000011
000159bc: 00000000
000159c0: 02000011
000159c4: 00000000
000159c8: 02000011
000159cc: 00000000
000159d0: 01810000
000159d4: 00000000
Ring end
space: 131052 wanted 131064
(II) intel(0): [drm] removed 1 reserved context for kernel
(II) intel(0): [drm] unmapping 8192 bytes of SAREA 0x1efff000 at 0x2b29c6dd3000
Fatal server error:
lockup
(II) AIGLX: Suspending AIGLX clients for VT switch
Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0x3ffc0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 1810000
LP ring tail: 15a08 head: 159d4 len: 1f801 start 0
eir: 0 esr: 0 emr: ffff
instdone: ffc0 instpm: 0
memmode: 306 instps: f0000
hwstam: fffe ier: 2 imr: 0 iir: 220
Ring at virtual 0xc747e000 head 0x159d4 tail 0x15a08 count 13
00015954: 00000000
00015958: 02000011
0001595c: 00000000
00015960: 02000011
00015964: 00000000
00015968: 02000011
0001596c: 00000000
00015970: 02000011
00015974: 00000000
00015978: 02000011
0001597c: 00000000
00015980: 02000011
00015984: 00000000
00015988: 02000011
0001598c: 00000000
00015990: 02000011
00015994: 00000000
00015998: 02000011
0001599c: 00000000
000159a0: 02000011
000159a4: 00000000
000159a8: 02000011
000159ac: 00000000
000159b0: 02000011
000159b4: 00000000
000159b8: 02000011
000159bc: 00000000
000159c0: 02000011
000159c4: 00000000
000159c8: 02000011
000159cc: 00000000
000159d0: 01810000
000159d4: 00000000
Ring end
space: 131012 wanted 131064
FatalError re-entered, aborting
lockup
--
[Hardy] GUI disappears while working
https://bugs.launchpad.net/bugs/163985
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