Public bug reported: I have a dell xps 15 l502x running 11.04. It seems to freeze randomly. System hangs up completely and requires a hard reset. The kernel log shows some errors around the time which don't make sense to me.
saad-Dell-System-XPS-L502X kernel: [ 91.327394] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 62630, at 62630], missed IRQ? May 9 12:41:25 saad-Dell-System-XPS-L502X kernel: [ 93.014861] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 63748, at 63748], missed IRQ? May 9 12:44:37 saad-Dell-System-XPS-L502X kernel: [ 284.769791] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 239386, at 239386], missed IRQ? May 9 12:46:37 saad-Dell-System-XPS-L502X kernel: [ 404.891548] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 327679, at 327679], missed IRQ? May 9 12:46:39 saad-Dell-System-XPS-L502X kernel: [ 406.443052] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 328240, at 328240], missed IRQ? ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.38-8-generic-pae 2.6.38-8.42 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2 Uname: Linux 2.6.38-8-generic-pae i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC665 Analog [ALC665 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: saad 1500 F.... pulseaudio /dev/snd/pcmC0D0p: saad 1500 F...m pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xf1c00000 irq 53' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:10ec0665,1028050e,00100003 HDA:80862805,80860101,00100000' Controls : 26 Simple ctrls : 12 Date: Mon May 9 12:36:19 2011 HibernationDevice: RESUME=UUID=a28f783f-91bf-44f3-a8b4-de0e3be368b7 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) MachineType: Dell Inc. Dell System XPS L502X ProcEnviron: LANGUAGE=en_US:en LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic-pae root=UUID=6eed70fe-9ed7-4ba3-8617-b326104c6011 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-2.6.38-8-generic-pae N/A linux-backports-modules-2.6.38-8-generic-pae N/A linux-firmware 1.52 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/25/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 0NJT03 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA04:bd03/25/2011:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn0NJT03:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L502X dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 natty running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780053 Title: system freezes randomly -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs