Don't know if the stack trace was actually attached: [ 2205.056641] ------------[ cut here ]------------ [ 2205.056675] WARNING: CPU: 1 PID: 1240 at /build/linux-FyIZxz/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm]() [ 2205.056677] vblank wait timed out on crtc 0 [ 2205.056679] Modules linked in: rfcomm arc4 md4 nls_utf8 cifs fscache bnep dell_wmi sparse_keymap intel_rapl dell_rbtn x86_pkg_temp_thermal intel_powerclamp wl(POE) dell_laptop coretemp kvm_intel kvm dcdbas dell_smm_hwmon irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel snd_hda_codec_hdmi aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd cdc_mbim snd_hda_codec_idt snd_hda_codec_generic input_leds joydev snd_hda_intel uvcvideo serio_raw snd_hda_codec cfg80211 videobuf2_vmalloc snd_hda_core snd_hwdep videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common cdc_ncm usbnet videodev btusb btrtl btbcm cdc_acm mii cdc_wdm btintel snd_pcm media bluetooth snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd mei_me mei lpc_ich soundcore shpchp 8250_fintek [ 2205.056740] dell_smo8800 mac_hid parport_pc ppdev lp parport autofs4 hid_generic usbhid hid i915 psmouse i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ahci e1000e drm sdhci_pci libahci sdhci ptp pps_core wmi fjes video [ 2205.056773] CPU: 1 PID: 1240 Comm: Xorg Tainted: P OE 4.4.0-77-generic #98-Ubuntu [ 2205.056776] Hardware name: Dell Inc. Latitude E6220/0R97MN, BIOS A12 06/28/2013 [ 2205.056779] 0000000000000286 0000000061dfdaa1 ffff8800c5be3b08 ffffffff813f8493 [ 2205.056784] ffff8800c5be3b50 ffffffffc009db38 ffff8800c5be3b40 ffffffff81081302 [ 2205.056789] ffff880034c39800 0000000000000000 0000000000000000 0000000000014013 [ 2205.056794] Call Trace: [ 2205.056803] [<ffffffff813f8493>] dump_stack+0x63/0x90 [ 2205.056810] [<ffffffff81081302>] warn_slowpath_common+0x82/0xc0 [ 2205.056815] [<ffffffff8108139c>] warn_slowpath_fmt+0x5c/0x80 [ 2205.056822] [<ffffffff810c3da5>] ? finish_wait+0x55/0x70 [ 2205.056843] [<ffffffffc006d2b5>] drm_wait_one_vblank+0x1b5/0x1c0 [drm] [ 2205.056849] [<ffffffff810c4240>] ? wake_atomic_t_function+0x60/0x60 [ 2205.056898] [<ffffffffc0233e3a>] intel_atomic_commit+0x43a/0x6f0 [i915] [ 2205.056925] [<ffffffffc008602f>] ? drm_atomic_set_crtc_for_connector+0x6f/0xe0 [drm] [ 2205.056951] [<ffffffffc0087037>] drm_atomic_commit+0x37/0x60 [drm] [ 2205.056967] [<ffffffffc015cdc6>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper] [ 2205.056992] [<ffffffffc0075e12>] drm_mode_set_config_internal+0x62/0x100 [drm] [ 2205.057016] [<ffffffffc007a46c>] drm_mode_setcrtc+0x3cc/0x4f0 [drm] [ 2205.057039] [<ffffffffc006b722>] drm_ioctl+0x152/0x540 [drm] [ 2205.057061] [<ffffffffc007a0a0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] [ 2205.057068] [<ffffffff81222c6f>] do_vfs_ioctl+0x29f/0x490 [ 2205.057073] [<ffffffff81211471>] ? __sb_end_write+0x21/0x30 [ 2205.057079] [<ffffffff8120f07d>] ? vfs_write+0x15d/0x1a0 [ 2205.057083] [<ffffffff81222ed9>] SyS_ioctl+0x79/0x90 [ 2205.057090] [<ffffffff8183b972>] entry_SYSCALL_64_fastpath+0x16/0x71 [ 2205.057094] ---[ end trace ab300cc6d21ac884 ]---
-- 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/1689651 Title: vblank wait timed out on crtc 0 after screen lock on Dell Latitude e6220 Status in linux package in Ubuntu: Confirmed Bug description: After a screen lock, the screen hangs, with the attached stack dump in dmesg. I've seen multiple bug reports with similar effect, but the workaround has been "video=SVIDEO-1:d" as boot parameters, but this does not affect my case. Also, the other reports, such as https://bugs.freedesktop.org/show_bug.cgi?id=93782, includes 'intel_tv_detect' which mine does not. lspci: 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4) 00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 02:00.0 Network controller: Broadcom Corporation BCM43228 802.11a/b/g/n 09:00.0 SD Host controller: O2 Micro, Inc. OZ600FJ0/OZ900FJ0/OZ600FJS SD/MMC Card Reader Controller (rev 05) 09:00.1 Mass storage controller: O2 Micro, Inc. Device 8231 (rev 03) ProblemType: Bug DistroRelease: elementary 0.4 Package: linux-image-4.4.0-77-generic 4.4.0-77.98 [origin: Ubuntu] ProcVersionSignature: Ubuntu 4.4.0-77.98-generic 4.4.59 Uname: Linux 4.4.0-77-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: thoni56 1567 F.... pulseaudio Date: Tue May 9 22:40:05 2017 HibernationDevice: RESUME=UUID=924774bb-ccbe-446b-a22e-2caa4b84f3b6 InstallationDate: Installed on 2017-05-03 (5 days ago) InstallationMedia: Lubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Dell Inc. Latitude E6220 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-77-generic root=UUID=4238aca4-33a0-457b-81fa-81d7b2316a6c ro quiet splash video=SVIDEO-1:d vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-77-generic N/A linux-backports-modules-4.4.0-77-generic N/A linux-firmware 1.157.8 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/28/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0R97MN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd06/28/2013:svnDellInc.:pnLatitudeE6220:pvr01:rvnDellInc.:rn0R97MN:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6220 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1689651/+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
