laptop crashes on resume when external monitor is detached

[Cay Horstmann]

Binary package hint: xorg

uname-a: Linux thinkpad-x60 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008 i686 GNU/Linux

I have a Thinkpad X60 laptop with an Intel graphics card. When I

 - boot the computer with the external monitor attached,
 - then detach the external monitor,
 - suspend the laptop
 - and later resume it,

the laptop freezes. I just get a black screen with a blinking cursor in the top right corner.

Ctrl+Alt+F1 and Ctrl+Alt+Backspace do not work. I have to press the power button until the machine resets.

I could find no relevant messages in /var/log/messages:

Nov 6 06:51:26 thinkpad-x60 kernel: [148072.573538] eth0: disassociating by local choice (reason=3)
Nov 6 06:51:26 thinkpad-x60 NetworkManager: <WARN> check_one_route(): (eth0) error -34 returned from rtnl_route_del(): Sucess
Nov 6 06:51:26 thinkpad-x60 NetworkManager: <info> (eth0): cleaning up...
Nov 6 06:51:26 thinkpad-x60 NetworkManager: <info> (eth0): taking down device.
Nov 6 06:51:26 thinkpad-x60 kernel: [148072.776494] hpet1: lost 5 rtc interrupts
Nov 6 06:51:26 thinkpad-x60 kernel: [148072.787246] iwl3945 0000:03:00.0: PCI INT A disabled
Nov 6 06:51:26 thinkpad-x60 avahi-daemon[4991]: Withdrawing address record for 10.0.1.6 on eth0.
Nov 6 06:51:27 thinkpad-x60 avahi-daemon[4991]: Leaving mDNS multicast group on interface eth0.IPv4 with address 10.0.1.6.
Nov 6 06:51:27 thinkpad-x60 avahi-daemon[4991]: Interface eth0.IPv4 no longer relevant for mDNS.
Nov 6 07:46:48 thinkpad-x60 syslogd 1.5.0#2ubuntu6: restart.
Nov 6 07:46:48 thinkpad-x60 kernel: Inspecting /boot/System.map-2.6.27-7-generic
Nov 6 07:46:48 thinkpad-x60 kernel: Cannot find map file.
Nov 6 07:46:48 thinkpad-x60 kernel: Loaded 54105 symbols from 99 modules.
Nov 6 07:46:48 thinkpad-x60 kernel: [ 0.000000] Initializing cgroup subsys cpuset
Nov 6 07:46:48 thinkpad-x60 kernel: [ 0.000000] Initializing cgroup subsys cpu
Nov 6 07:46:48 thinkpad-x60 kernel: [ 0.000000] Linux version 2.6.27-7-generic (buildd@palmer) (gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu11) ) #1 SMP Tue Nov 4 19:33:20 UTC 2008 (Ubuntu 2.6.27-7.16-generic)

I suspended at 06:51 and resumed at 07:45. I rebooted at 07:46.

Resume works fine when I do not boot the machine with an external monitor attached. For example, this works:

 - boot the computer without the external monitor attached,
 - attach the external monitor
 - then detach the external monitor,
 - suspend the laptop
 - and later resume it

FWIW, I attach Xorg.log. Here is the output of lspci -vvnn

00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub [8086:27a0] (rev 03)
 Subsystem: Lenovo Device [17aa:2017]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
 Latency: 0
 Capabilities: <access denied>
 Kernel driver in use: agpgart-intel
 Kernel modules: intel-agp

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)
 Subsystem: Lenovo Device [17aa:201a]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at ee100000 (32-bit, non-prefetchable) [size=512K]
 Region 1: I/O ports at 1800 [size=8]
 Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
 Region 3: Memory at ee200000 (32-bit, non-prefetchable) [size=256K]
 Capabilities: <access denied>
 Kernel modules: intelfb

00:02.1 Display controller [0380]: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller [8086:27a6] (rev 03)
 Subsystem: Lenovo Device [17aa:201a]
 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Region 0: Memory at ee180000 (32-bit, non-prefetchable) [size=512K]
 Capabilities: <access denied>

00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller [8086:27d8] (rev 02)
 Subsystem: Lenovo Device [17aa:2010]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin B routed to IRQ 17
 Region 0: Memory at ee240000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: HDA Intel
 Kernel modules: snd-hda-intel

00:1c.0 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 [8086:27d0] (rev 02)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
 I/O behind bridge: 00002000-00002fff
 Memory behind bridge: ee000000-ee0fffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1c.1 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 [8086:27d2] (rev 02)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
 I/O behind bridge: 00003000-00004fff
 Memory behind bridge: ec000000-edffffff
 Prefetchable memory behind bridge: 00000000e4000000-00000000e40fffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1c.2 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 [8086:27d4] (rev 02)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Bus: primary=00, secondary=04, subordinate=0b, sec-latency=0
 I/O behind bridge: 00005000-00006fff
 Memory behind bridge: e8000000-e9ffffff
 Prefetchable memory behind bridge: 00000000e4100000-00000000e41fffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1c.3 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 [8086:27d6] (rev 02)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Bus: primary=00, secondary=0c, subordinate=13, sec-latency=0
 I/O behind bridge: 00007000-00008fff
 Memory behind bridge: ea000000-ebffffff
 Prefetchable memory behind bridge: 00000000e4200000-00000000e42fffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1d.0 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 [8086:27c8] (rev 02)
 Subsystem: Lenovo Device [17aa:200a]
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin A routed to IRQ 16
 Region 4: I/O ports at 1820 [size=32]
 Kernel driver in use: uhci_hcd
 Kernel modules: uhci-hcd

00:1d.1 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 [8086:27c9] (rev 02)
 Subsystem: Lenovo Device [17aa:200a]
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin B routed to IRQ 17
 Region 4: I/O ports at 1840 [size=32]
 Kernel driver in use: uhci_hcd
 Kernel modules: uhci-hcd

00:1d.2 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 [8086:27ca] (rev 02)
 Subsystem: Lenovo Device [17aa:200a]
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin C routed to IRQ 18
 Region 4: I/O ports at 1860 [size=32]
 Kernel driver in use: uhci_hcd
 Kernel modules: uhci-hcd

00:1d.3 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 [8086:27cb] (rev 02)
 Subsystem: Lenovo Device [17aa:200a]
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin D routed to IRQ 19
 Region 4: I/O ports at 1880 [size=32]
 Kernel driver in use: uhci_hcd
 Kernel modules: uhci-hcd

00:1d.7 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller [8086:27cc] (rev 02) (prog-if 20)
 Subsystem: Lenovo Device [17aa:200b]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin D routed to IRQ 19
 Region 0: Memory at ee444000 (32-bit, non-prefetchable) [size=1K]
 Capabilities: <access denied>
 Kernel driver in use: ehci_hcd
 Kernel modules: ehci-hcd

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev e2) (prog-if 01)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Bus: primary=00, secondary=15, subordinate=18, sec-latency=32
 I/O behind bridge: 00009000-0000cfff
 Memory behind bridge: e4300000-e7ffffff
 Prefetchable memory behind bridge: 00000000e0000000-00000000e3ffffff
 Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge [8086:27b9] (rev 02)
 Subsystem: Lenovo Device [17aa:2009]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Capabilities: <access denied>
 Kernel modules: iTCO_wdt, intel-rng

00:1f.1 IDE interface [0101]: Intel Corporation 82801G (ICH7 Family) IDE Controller [8086:27df] (rev 02) (prog-if 8a [Master SecP PriP])
 Subsystem: Lenovo Device [17aa:200c]
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx+
 Latency: 0
 Interrupt: pin C routed to IRQ 16
 Region 0: I/O ports at 01f0 [size=8]
 Region 1: I/O ports at 03f4 [size=1]
 Region 2: I/O ports at 0170 [size=8]
 Region 3: I/O ports at 0374 [size=1]
 Region 4: I/O ports at 1810 [size=16]
 Kernel driver in use: ata_piix
 Kernel modules: ata_piix

00:1f.2 SATA controller [0106]: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA AHCI Controller [8086:27c5] (rev 02) (prog-if 01)
 Subsystem: Lenovo Device [17aa:200d]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
 Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin B routed to IRQ 219
 Region 0: I/O ports at 18d0 [size=8]
 Region 1: I/O ports at 18c4 [size=4]
 Region 2: I/O ports at 18c8 [size=8]
 Region 3: I/O ports at 18c0 [size=4]
 Region 4: I/O ports at 18b0 [size=16]
 Region 5: Memory at ee444400 (32-bit, non-prefetchable) [size=1K]
 Capabilities: <access denied>
 Kernel driver in use: ahci
 Kernel modules: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 82801G (ICH7 Family) SMBus Controller [8086:27da] (rev 02)
 Subsystem: Lenovo Device [17aa:200f]
 Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Interrupt: pin A routed to IRQ 11
 Region 4: I/O ports at 18e0 [size=32]
 Kernel modules: i2c-i801

02:00.0 Ethernet controller [0200]: Intel Corporation 82573L Gigabit Ethernet Controller [8086:109a]
 Subsystem: Lenovo Device [17aa:207e]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin A routed to IRQ 218
 Region 0: Memory at ee000000 (32-bit, non-prefetchable) [size=128K]
 Region 2: I/O ports at 2000 [size=32]
 Capabilities: <access denied>
 Kernel driver in use: e1000e
 Kernel modules: e1000e

03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4227] (rev 02)
 Subsystem: Intel Corporation Device [8086:1010]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin A routed to IRQ 217
 Region 0: Memory at edf00000 (32-bit, non-prefetchable) [size=4K]
 Capabilities: <access denied>
 Kernel driver in use: iwl3945
 Kernel modules: iwl3945

15:00.0 CardBus bridge [0607]: Ricoh Co Ltd RL5c476 II [1180:0476] (rev b4)
 Subsystem: Lenovo Device [17aa:201c]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 168
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at e4300000 (32-bit, non-prefetchable) [size=4K]
 Bus: primary=15, secondary=16, subordinate=17, sec-latency=176
 Memory window 0: e0000000-e3fff000 (prefetchable)
 Memory window 1: 88000000-8bfff000
 I/O window 0: 00009000-000090ff
 I/O window 1: 00009400-000094ff
 BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+
 16-bit legacy interface ports at 0001
 Kernel driver in use: yenta_cardbus
 Kernel modules: yenta_socket

15:00.1 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C552 IEEE 1394 Controller [1180:0552] (rev 09) (prog-if 10)
 Subsystem: Lenovo Device [17aa:201e]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 64 (500ns min, 1000ns max)
 Interrupt: pin B routed to IRQ 17
 Region 0: Memory at e4301000 (32-bit, non-prefetchable) [size=2K]
 Capabilities: <access denied>
 Kernel driver in use: ohci1394
 Kernel modules: ohci1394

15:00.2 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 18)
 Subsystem: Lenovo Device [17aa:201d]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin C routed to IRQ 18
 Region 0: Memory at e4301800 (32-bit, non-prefetchable) [size=256]
 Capabilities: <access denied>
 Kernel driver in use: sdhci-pci
 Kernel modules: sdhci-pci

[Bryce Harrington (bryce)]

Please collect a full backtrace on this crash. See http://wiki.ubuntu.com/X/Backtracing for directions.

[Bryce Harrington (bryce)]

[This is an automatic notice.]

We'd like to forward your bug upstream, however upstream requires
that you first test it against their newer driver code.

To save you the effort of building the driver from source, we've built
packages for the driver and its new dependencies.

So you have a couple options:

 1. Download and test .debs for intrepid, from:
     https://edge.launchpad.net/~intel-gfx-testing/+archive

 -or-

 2. Download and test the Jaunty alpha-2 (or newer) Live CD,
     (which includes a beta of the new xserver 1.6 as well).
     See http://cdimage.ubuntu.com/releases/9.04/ for ISOs

Thanks ahead of time! You can simply reply to this email to report your
findings.

P.S., if you wish to forward your bug upstream yourself, please follow
these directions to do so:
  http://intellinuxgraphics.org/how_to_report_bug.html

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.

[Cay Horstmann (cay)]

Sorry, I never did figure out how to collect a backtrace. Now I am running the Jaunty Alpha, and the problem has gone away.