Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/ ** Changed in: linux (Ubuntu) Importance: Critical => High ** Also affects: linux (Ubuntu Vivid) Importance: High Status: Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1448419 Title: Computer goes to sleep mode after a few minutes Status in linux package in Ubuntu: Confirmed Status in linux source package in Vivid: Confirmed Bug description: After a few minutes, the computer is going to sleep mode. Switching to a console (Ctrl - Alt - F1) shows two error messages — might be typos since I a copying from a picture: [drm:i9xx_check_fifo_underrun] <ERROR> pipe A underrun [drm:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout (has irq 0). A crash can also be found in /var/log/kern.log: Apr 25 10:56:11 tolkien kernel: [ 246.377401] ------------[ cut here ]------------ Apr 25 10:56:11 tolkien kernel: [ 246.377443] WARNING: CPU: 0 PID: 1520 at /build/buildd/linux-3.19.0/drivers/gpu/drm/drm_irq.c:112 1 drm_wait_one_vblank+0x170/0x180 [drm]() Apr 25 10:56:11 tolkien kernel: [ 246.377447] vblank not available on crtc 1, ret=-22 Apr 25 10:56:11 tolkien kernel: [ 246.377449] Modules linked in: coretemp kvm_intel kvm joydev arc4 serio_raw ath9k ath9k_common at h9k_hw ath snd_hda_codec_hdmi mac80211 snd_hda_codec_realtek snd_hda_codec_generic lpc_ich snd_hda_intel rfcomm bnep cfg80211 snd_hd a_controller snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd shpchp soundcore bluetooth parport_pc ppdev lp mac_hid parport xts gf128mul dm_crypt i915 ahci psmouse i2c_algo_bit libahci drm_kms_helper r8169 drm mii video Apr 25 10:56:11 tolkien kernel: [ 246.377507] CPU: 0 PID: 1520 Comm: systemd-logind Tainted: G W 3.19.0-15-generic #15- Ubuntu Apr 25 10:56:11 tolkien kernel: [ 246.377511] Hardware name: LENGDA Montevina platform/Montevina platform, BIOS 4.6.3 07/08/2011 Apr 25 10:56:11 tolkien kernel: [ 246.377514] ffffffffc0261e18 ffff88006ff638c8 ffffffff817c2205 0000000000000007 Apr 25 10:56:11 tolkien kernel: [ 246.377519] ffff88006ff63918 ffff88006ff63908 ffffffff8107595a ffff88006ff63968 Apr 25 10:56:11 tolkien kernel: [ 246.377525] ffff880035580000 ffff880035d97000 0000000000000001 ffff880035580000 Apr 25 10:56:11 tolkien kernel: [ 246.377530] Call Trace: Apr 25 10:56:11 tolkien kernel: [ 246.377543] [<ffffffff817c2205>] dump_stack+0x45/0x57 Apr 25 10:56:11 tolkien kernel: [ 246.377549] [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0 Apr 25 10:56:11 tolkien kernel: [ 246.377554] [<ffffffff810759d6>] warn_slowpath_fmt+0x46/0x50 Apr 25 10:56:11 tolkien kernel: [ 246.377573] [<ffffffffc0233ee0>] drm_wait_one_vblank+0x170/0x180 [drm] Apr 25 10:56:11 tolkien kernel: [ 246.377615] [<ffffffffc03ce4bf>] ? gen4_read32+0x4f/0xc0 [i915] Apr 25 10:56:11 tolkien kernel: [ 246.377656] [<ffffffffc0420965>] intel_enable_tv+0x25/0x60 [i915] Apr 25 10:56:11 tolkien kernel: [ 246.377692] [<ffffffffc03ebfeb>] i9xx_crtc_enable+0x3fb/0x4c0 [i915] Apr 25 10:56:11 tolkien kernel: [ 246.377727] [<ffffffffc03ea592>] __intel_set_mode+0x882/0xc80 [i915] Apr 25 10:56:11 tolkien kernel: [ 246.377764] [<ffffffffc03f01cd>] intel_set_mode+0x6d/0x90 [i915] Apr 25 10:56:11 tolkien kernel: [ 246.377800] [<ffffffffc03f0425>] intel_get_load_detect_pipe+0x235/0x460 [i915] Apr 25 10:56:11 tolkien kernel: [ 246.377807] [<ffffffff8126d51e>] ? kernfs_fop_open+0x22e/0x420 Apr 25 10:56:11 tolkien kernel: [ 246.377846] [<ffffffffc0421565>] intel_tv_detect+0x135/0x670 [i915] Apr 25 10:56:11 tolkien kernel: [ 246.377851] [<ffffffff8126d680>] ? kernfs_fop_open+0x390/0x420 Apr 25 10:56:11 tolkien kernel: [ 246.377874] [<ffffffffc0239141>] status_show+0x41/0x90 [drm] Apr 25 10:56:11 tolkien kernel: [ 246.377883] [<ffffffff81501be0>] dev_attr_show+0x20/0x60 Apr 25 10:56:11 tolkien kernel: [ 246.377889] [<ffffffff817c6e56>] ? mutex_lock+0x16/0x40 Apr 25 10:56:11 tolkien kernel: [ 246.377894] [<ffffffff8126dfe6>] sysfs_kf_seq_show+0xb6/0x150 Apr 25 10:56:11 tolkien kernel: [ 246.377899] [<ffffffff8126c5a3>] kernfs_seq_show+0x23/0x30 Apr 25 10:56:11 tolkien kernel: [ 246.377905] [<ffffffff812184cd>] seq_read+0xcd/0x3b0 Apr 25 10:56:11 tolkien kernel: [ 246.377910] [<ffffffff8126cf35>] kernfs_fop_read+0x105/0x170 Apr 25 10:56:11 tolkien kernel: [ 246.377916] [<ffffffff813129b4>] ? security_file_permission+0x84/0xa0 Apr 25 10:56:11 tolkien kernel: [ 246.377922] [<ffffffff811f3df8>] __vfs_read+0x18/0x50 Apr 25 10:56:11 tolkien kernel: [ 246.377927] [<ffffffff811f3eba>] vfs_read+0x8a/0x140 Apr 25 10:56:11 tolkien kernel: [ 246.377931] [<ffffffff811f3fb6>] SyS_read+0x46/0xb0 Apr 25 10:56:11 tolkien kernel: [ 246.377938] [<ffffffff817c934d>] system_call_fastpath+0x16/0x1b Apr 25 10:56:11 tolkien kernel: [ 246.377942] ---[ end trace 816c557919d1cbca ]--- It seems this crash is reported, but I do not know if it is a red herring: https://lkml.org/lkml/2015/3/1/6 Booting on kernel 3.16.0-34 does not resolve the issue, nor does using upstart. I will be bisecting the driver today to see if I can add more information ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Uname: Linux 3.19.0-15-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' Date: Sat Apr 25 11:05:44 2015 DistUpgraded: 2015-04-23 21:43:24,830 DEBUG enabling apt cron job DistroCodename: vivid DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Device [1b50:5608] Subsystem: Device [1b50:5608] InstallationDate: Installed on 2015-04-11 (13 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENGDA Montevina platform ProcEnviron: LANGUAGE=en_IE:en TERM=linux PATH=(custom, no user) LANG=en_IE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-15-generic root=/dev/mapper/ubuntu--vg-root ro recovery nomodeset SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to vivid on 2015-04-23 (1 days ago) dmi.bios.date: 07/08/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.3 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Montevina platform dmi.board.vendor: LENGDA dmi.board.version: To be filled by O.E.M. dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 10 dmi.chassis.vendor: LENGDA dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.3:bd07/08/2011:svnLENGDA:pnMontevinaplatform:pvrTobefilledbyO.E.M.:rvnLENGDA:rnMontevinaplatform:rvrTobefilledbyO.E.M.:cvnLENGDA:ct10:cvrToBeFilledByO.E.M.: dmi.product.name: Montevina platform dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: LENGDA version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Sat Apr 25 11:02:09 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.1-0ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1448419/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
