This is quite late, but to let everyone know: later releases of 4.8 screwed up everything again. Lockups after user switching. Falled back to the 4.4 branch, where
[87274.633194] ------------[ cut here ]------------ [87274.633227] WARNING: CPU: 3 PID: 22315 at /build/linux-dKXp7o/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm]() [87274.633228] vblank wait timed out on crtc 0 [87274.633263] Modules linked in: hid_a4tech nls_iso8859_1 uas usb_storage hid_generic usbhid hid ctr ccm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media msr intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm arc4 iwldvm irqbypass mac80211 input_leds joydev serio_raw snd_hda_codec_hdmi iwlwifi snd_hda_codec_conexant snd_hda_codec_generic snd_seq_midi snd_seq_midi_event cfg80211 thinkpad_acpi snd_hda_intel snd_rawmidi nvram snd_hda_codec snd_hda_core snd_hwdep snd_seq mei_me snd_pcm mei snd_seq_device snd_timer lpc_ich shpchp snd soundcore mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 [87274.633290] xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter parport_pc ip_tables ppdev x_tables lp parport autofs4 btrfs xor raid6_pq drbg ansi_cprng algif_skcipher af_alg dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul i915 crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt ahci fb_sys_fops e1000e libahci sdhci_pci drm sdhci ptp pps_core wmi fjes video [87274.633292] CPU: 3 PID: 22315 Comm: Xorg Not tainted 4.4.0-67-generic #88-Ubuntu [87274.633293] Hardware name: LENOVO 4286CTO/4286CTO, BIOS 8DET50WW (1.20 ) 07/07/2011 [87274.633296] 0000000000000286 00000000596aa371 ffff8803d39cf838 ffffffff813f86d3 [87274.633298] ffff8803d39cf880 ffffffffc0082b38 ffff8803d39cf870 ffffffff81081302 [87274.633300] ffff880404fab000 0000000000000000 0000000000000000 00000000001cac58 [87274.633300] Call Trace: [87274.633305] [<ffffffff813f86d3>] dump_stack+0x63/0x90 [87274.633309] [<ffffffff81081302>] warn_slowpath_common+0x82/0xc0 [87274.633311] [<ffffffff8108139c>] warn_slowpath_fmt+0x5c/0x80 [87274.633315] [<ffffffff810c3d75>] ? finish_wait+0x55/0x70 [87274.633329] [<ffffffffc00522e5>] drm_wait_one_vblank+0x1b5/0x1c0 [drm] [87274.633332] [<ffffffff810c4210>] ? wake_atomic_t_function+0x60/0x60 [87274.633365] [<ffffffffc02cfe1a>] intel_atomic_commit+0x43a/0x6f0 [i915] [87274.633384] [<ffffffffc006b9d7>] ? drm_atomic_add_affected_connectors+0x27/0xf0 [drm] [87274.633401] [<ffffffffc006c067>] drm_atomic_commit+0x37/0x60 [drm] [87274.633412] [<ffffffffc018ae5f>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper] [87274.633428] [<ffffffffc006a7ea>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [87274.633437] [<ffffffffc018d033>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [87274.633444] [<ffffffffc018d0ad>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [87274.633472] [<ffffffffc02e4e5a>] intel_fbdev_set_par+0x1a/0x60 [i915] [87274.633474] [<ffffffff8147daef>] ? fb_set_var+0x2ef/0x460 [87274.633476] [<ffffffff8147da36>] fb_set_var+0x236/0x460 [87274.633479] [<ffffffff810ab554>] ? check_preempt_curr+0x54/0x90 [87274.633481] [<ffffffff810b577a>] ? check_preempt_wakeup+0xfa/0x220 [87274.633483] [<ffffffff810b5269>] ? update_curr+0x79/0x160 [87274.633487] [<ffffffff81473d2f>] fbcon_blank+0x30f/0x350 [87274.633488] [<ffffffff810ab5a9>] ? ttwu_do_wakeup+0x19/0xe0 [87274.633492] [<ffffffff8150b253>] do_unblank_screen+0xd3/0x1a0 [87274.633494] [<ffffffff81500349>] complete_change_console+0x59/0xe0 [87274.633495] [<ffffffff81500ae0>] vt_ioctl+0x710/0x12f0 [87274.633509] [<ffffffffc0050789>] ? drm_ioctl+0x189/0x540 [drm] [87274.633512] [<ffffffff814f3d1f>] tty_ioctl+0x35f/0xc40 [87274.633516] [<ffffffff811c1a90>] ? handle_mm_fault+0xce0/0x1820 [87274.633519] [<ffffffff81222caf>] do_vfs_ioctl+0x29f/0x490 [87274.633522] [<ffffffff8106b544>] ? __do_page_fault+0x1b4/0x400 [87274.633524] [<ffffffff81222f19>] SyS_ioctl+0x79/0x90 [87274.633528] [<ffffffff8183c672>] entry_SYSCALL_64_fastpath+0x16/0x71 [87274.633530] ---[ end trace b051207009ce3de7 ]--- [87277.029483] [drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... blitter ring idle [87288.996779] ------------[ cut here ]------------ [87288.996842] WARNING: CPU: 0 PID: 1442 at /build/linux-dKXp7o/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm]() [87288.996848] vblank wait timed out on crtc 0 [87288.996851] Modules linked in: hid_a4tech nls_iso8859_1 uas usb_storage hid_generic usbhid hid ctr ccm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media msr intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm arc4 iwldvm irqbypass mac80211 input_leds joydev serio_raw snd_hda_codec_hdmi iwlwifi snd_hda_codec_conexant snd_hda_codec_generic snd_seq_midi snd_seq_midi_event cfg80211 thinkpad_acpi snd_hda_intel snd_rawmidi nvram snd_hda_codec snd_hda_core snd_hwdep snd_seq mei_me snd_pcm mei snd_seq_device snd_timer lpc_ich shpchp snd soundcore mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 [87288.996946] xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter parport_pc ip_tables ppdev x_tables lp parport autofs4 btrfs xor raid6_pq drbg ansi_cprng algif_skcipher af_alg dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul i915 crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt ahci fb_sys_fops e1000e libahci sdhci_pci drm sdhci ptp pps_core wmi fjes video [87288.997021] CPU: 0 PID: 1442 Comm: Xorg Tainted: G W 4.4.0-67-generic #88-Ubuntu [87288.997026] Hardware name: LENOVO 4286CTO/4286CTO, BIOS 8DET50WW (1.20 ) 07/07/2011 [87288.997030] 0000000000000286 000000007f0f2c81 ffff8801aa743ad8 ffffffff813f86d3 [87288.997037] ffff8801aa743b20 ffffffffc0082b38 ffff8801aa743b10 ffffffff81081302 [87288.997042] ffff880404fab000 0000000000000000 0000000000000000 00000000001cafb6 [87288.997048] Call Trace: [87288.997061] [<ffffffff813f86d3>] dump_stack+0x63/0x90 [87288.997072] [<ffffffff81081302>] warn_slowpath_common+0x82/0xc0 [87288.997078] [<ffffffff8108139c>] warn_slowpath_fmt+0x5c/0x80 [87288.997088] [<ffffffff810c3d75>] ? finish_wait+0x55/0x70 [87288.997121] [<ffffffffc00522e5>] drm_wait_one_vblank+0x1b5/0x1c0 [drm] [87288.997128] [<ffffffff810c4210>] ? wake_atomic_t_function+0x60/0x60 [87288.997200] [<ffffffffc02cfe1a>] intel_atomic_commit+0x43a/0x6f0 [i915] [87288.997243] [<ffffffffc006c067>] drm_atomic_commit+0x37/0x60 [drm] [87288.997266] [<ffffffffc0189949>] drm_atomic_helper_disable_plane+0xa9/0xf0 [drm_kms_helper] [87288.997302] [<ffffffffc005b269>] __setplane_internal+0x169/0x250 [drm] [87288.997340] [<ffffffffc006a7ea>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [87288.997376] [<ffffffffc005f056>] drm_mode_setplane+0x136/0x1b0 [drm] [87288.997406] [<ffffffffc0050752>] drm_ioctl+0x152/0x540 [drm] [87288.997440] [<ffffffffc005ef20>] ? drm_plane_check_pixel_format+0x50/0x50 [drm] [87288.997448] [<ffffffff81222caf>] do_vfs_ioctl+0x29f/0x490 [87288.997454] [<ffffffff812114a1>] ? __sb_end_write+0x21/0x30 [87288.997461] [<ffffffff8120f0ad>] ? vfs_write+0x15d/0x1a0 [87288.997466] [<ffffffff81222f19>] SyS_ioctl+0x79/0x90 [87288.997476] [<ffffffff8183c672>] entry_SYSCALL_64_fastpath+0x16/0x71 [87288.997481] ---[ end trace b051207009ce3de8 ]--- [87289.148631] ------------[ cut here ]------------ [87289.148656] WARNING: CPU: 3 PID: 5723 at /build/linux-dKXp7o/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm ]() [87289.148658] vblank wait timed out on crtc 0 [87289.148660] Modules linked in: hid_a4tech nls_iso8859_1 uas usb_storage hid_generic usbhid hid ctr ccm uvcvideo videobuf2_vmalloc videobuf2_ memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media msr intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm arc4 iwldvm irqbypas s mac80211 input_leds joydev serio_raw snd_hda_codec_hdmi iwlwifi snd_hda_codec_conexant snd_hda_codec_generic snd_seq_midi snd_seq_midi_event cfg80211 thinkpad_acpi snd_hda_intel snd_rawmidi nvram snd_hda_codec snd_hda_core snd_hwdep snd_seq mei_me snd_pcm mei snd_seq_device snd_timer lpc_ich shpchp snd soundcore mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_rejec t_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 [87289.148701] xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_co nntrack iptable_filter parport_pc ip_tables ppdev x_tables lp parport autofs4 btrfs xor raid6_pq drbg ansi_cprng algif_skcipher af_alg dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul i915 crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_he lper cryptd i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt ahci fb_sys_fops e1000e libahci sdhci_pci drm sdhci ptp pps_c ore wmi fjes video [87289.148734] CPU: 3 PID: 5723 Comm: Xorg Tainted: G W 4.4.0-67-generic #88-Ubuntu [87289.148736] Hardware name: LENOVO 4286CTO/4286CTO, BIOS 8DET50WW (1.20 ) 07/07/2011 [87289.148738] 0000000000000286 000000006026d542 ffff8803d13dfb08 ffffffff813f86d3 [87289.148741] ffff8803d13dfb50 ffffffffc0082b38 ffff8803d13dfb40 ffffffff81081302 [87289.148744] ffff880404fab000 0000000000000000 0000000000000000 00000000001cafbf [87289.148747] Call Trace: [87289.148752] [<ffffffff813f86d3>] dump_stack+0x63/0x90 [87289.148757] [<ffffffff81081302>] warn_slowpath_common+0x82/0xc0 [87289.148759] [<ffffffff8108139c>] warn_slowpath_fmt+0x5c/0x80 [87289.148764] [<ffffffff810c3d75>] ? finish_wait+0x55/0x70 [87289.148777] [<ffffffffc00522e5>] drm_wait_one_vblank+0x1b5/0x1c0 [drm] [87289.148779] [<ffffffff810c4210>] ? wake_atomic_t_function+0x60/0x60 [87289.148813] [<ffffffffc02cfe1a>] intel_atomic_commit+0x43a/0x6f0 [i915] [87289.148830] [<ffffffffc006b05f>] ? drm_atomic_set_crtc_for_connector+0x6f/0xe0 [drm] [87289.148847] [<ffffffffc006c067>] drm_atomic_commit+0x37/0x60 [drm] [87289.148858] [<ffffffffc0189dc6>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper] [87289.148872] [<ffffffffc005ae42>] drm_mode_set_config_internal+0x62/0x100 [drm] [87289.148888] [<ffffffffc005f49c>] drm_mode_setcrtc+0x3cc/0x4f0 [drm] [87289.148901] [<ffffffffc0050752>] drm_ioctl+0x152/0x540 [drm] [87289.148916] [<ffffffffc005f0d0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] [87289.148919] [<ffffffff81222caf>] do_vfs_ioctl+0x29f/0x490 [87289.148922] [<ffffffff812114a1>] ? __sb_end_write+0x21/0x30 [87289.148925] [<ffffffff8120f0ad>] ? vfs_write+0x15d/0x1a0 [87289.148927] [<ffffffff81222f19>] SyS_ioctl+0x79/0x90 [87289.148931] [<ffffffff8183c672>] entry_SYSCALL_64_fastpath+0x16/0x71 [87289.148933] ---[ end trace b051207009ce3de9 ]--- [87356.854041] ------------[ cut here ]------------ [87356.854140] WARNING: CPU: 2 PID: 5723 at /build/linux-dKXp7o/linux-4.4.0/drivers/gpu/drm/i915/intel_display.c:3965 intel_crtc_wait_for_pending_flips+0x1e2/0x240 [i915]() [87356.854146] WARN_ON(wait_event_timeout(dev_priv->pending_flip_queue, !intel_crtc_has_pending_flip(crtc), 60*HZ) == 0) [87356.854150] Modules linked in: [87356.854155] hid_a4tech nls_iso8859_1 uas usb_storage hid_generic usbhid hid ctr ccm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media msr intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm arc4 iwldvm irqbypass mac80211 input_leds joydev serio_raw snd_hda_codec_hdmi iwlwifi snd_hda_codec_conexant snd_hda_codec_generic snd_seq_midi snd_seq_midi_event cfg80211 thinkpad_acpi snd_hda_intel snd_rawmidi nvram snd_hda_codec snd_hda_core snd_hwdep snd_seq mei_me snd_pcm mei snd_seq_device snd_timer lpc_ich shpchp snd soundcore mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack [87356.854246] ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter parport_pc ip_tables ppdev x_tables lp parport autofs4 btrfs xor raid6_pq drbg ansi_cprng algif_skcipher af_alg dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul i915 crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt ahci fb_sys_fops e1000e libahci sdhci_pci drm sdhci ptp pps_core wmi fjes video [87356.854320] CPU: 2 PID: 5723 Comm: Xorg Tainted: G W 4.4.0-67-generic #88-Ubuntu [87356.854325] Hardware name: LENOVO 4286CTO/4286CTO, BIOS 8DET50WW (1.20 ) 07/07/2011 [87356.854329] 0000000000000286 000000006026d542 ffff8803d13dfaa0 ffffffff813f86d3 [87356.854335] ffff8803d13dfae8 ffffffffc0333ab8 ffff8803d13dfad8 ffffffff81081302 [87356.854341] ffff880404fab1a8 ffff880404829030 ffff88040adf6000 ffff880404fab000 [87356.854347] Call Trace: [87356.854360] [<ffffffff813f86d3>] dump_stack+0x63/0x90 [87356.854371] [<ffffffff81081302>] warn_slowpath_common+0x82/0xc0 [87356.854377] [<ffffffff8108139c>] warn_slowpath_fmt+0x5c/0x80 [87356.854387] [<ffffffff810c3d75>] ? finish_wait+0x55/0x70 [87356.854453] [<ffffffffc02ce2e2>] intel_crtc_wait_for_pending_flips+0x1e2/0x240 [i915] [87356.854460] [<ffffffff810c4210>] ? wake_atomic_t_function+0x60/0x60 [87356.854520] [<ffffffffc02cf561>] intel_pre_plane_update+0x111/0x140 [i915] [87356.854577] [<ffffffffc02cfd32>] intel_atomic_commit+0x352/0x6f0 [i915] [87356.854622] [<ffffffffc006bc2e>] ? drm_atomic_check_only+0x18e/0x590 [drm] [87356.854663] [<ffffffffc006c067>] drm_atomic_commit+0x37/0x60 [drm] [87356.854685] [<ffffffffc0189949>] drm_atomic_helper_disable_plane+0xa9/0xf0 [drm_kms_helper] [87356.854720] [<ffffffffc005b269>] __setplane_internal+0x169/0x250 [drm] [87356.854759] [<ffffffffc006a7ea>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [87356.854795] [<ffffffffc005f056>] drm_mode_setplane+0x136/0x1b0 [drm] [87356.854824] [<ffffffffc0050752>] drm_ioctl+0x152/0x540 [drm] [87356.854858] [<ffffffffc005ef20>] ? drm_plane_check_pixel_format+0x50/0x50 [drm] [87356.854867] [<ffffffff81222caf>] do_vfs_ioctl+0x29f/0x490 [87356.854874] [<ffffffff8106b544>] ? __do_page_fault+0x1b4/0x400 [87356.854880] [<ffffffff81222f19>] SyS_ioctl+0x79/0x90 [87356.854889] [<ffffffff8183c672>] entry_SYSCALL_64_fastpath+0x16/0x71 [87356.854894] ---[ end trace b051207009ce3dea ]--- [87356.854897] ------------[ cut here ]------------ [87356.854960] WARNING: CPU: 2 PID: 5723 at /build/linux-dKXp7o/linux-4.4.0/drivers/gpu/drm/i915/intel_display.c:3970 intel_crtc_wait_for_pending_flips+0x233/0x240 [i915]() [87356.854963] Removing stuck page flip [87356.854965] Modules linked in: hid_a4tech nls_iso8859_1 uas usb_storage hid_generic usbhid hid ctr ccm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media msr intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm arc4 iwldvm irqbypass mac80211 input_leds joydev serio_raw snd_hda_codec_hdmi iwlwifi snd_hda_codec_conexant snd_hda_codec_generic snd_seq_midi snd_seq_midi_event cfg80211 thinkpad_acpi snd_hda_intel snd_rawmidi nvram snd_hda_codec snd_hda_core snd_hwdep snd_seq mei_me snd_pcm mei snd_seq_device snd_timer lpc_ich shpchp snd soundcore mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 [87356.855036] xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter parport_pc ip_tables ppdev x_tables lp parport autofs4 btrfs xor raid6_pq drbg ansi_cprng algif_skcipher af_alg dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul i915 crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt ahci fb_sys_fops e1000e libahci sdhci_pci drm sdhci ptp pps_core wmi fjes video [87356.855094] CPU: 2 PID: 5723 Comm: Xorg Tainted: G W 4.4.0-67-generic #88-Ubuntu [87356.855097] Hardware name: LENOVO 4286CTO/4286CTO, BIOS 8DET50WW (1.20 ) 07/07/2011 [87356.855100] 0000000000000086 000000006026d542 ffff8803d13dfaa0 ffffffff813f86d3 [87356.855105] ffff8803d13dfae8 ffffffffc0333ab8 ffff8803d13dfad8 ffffffff81081302 [87356.855111] ffff880404fab1a8 ffff880404829030 ffff88040adf6000 ffff880404fab000 [87356.855116] Call Trace: [87356.855121] [<ffffffff813f86d3>] dump_stack+0x63/0x90 [87356.855128] [<ffffffff81081302>] warn_slowpath_common+0x82/0xc0 [87356.855134] [<ffffffff8108139c>] warn_slowpath_fmt+0x5c/0x80 [87356.855141] [<ffffffff810c3d75>] ? finish_wait+0x55/0x70 [87356.855199] [<ffffffffc02ce333>] intel_crtc_wait_for_pending_flips+0x233/0x240 [i915] [87356.855207] [<ffffffff810c4210>] ? wake_atomic_t_function+0x60/0x60 [87356.855263] [<ffffffffc02cf561>] intel_pre_plane_update+0x111/0x140 [i915] [87356.855320] [<ffffffffc02cfd32>] intel_atomic_commit+0x352/0x6f0 [i915] [87356.855360] [<ffffffffc006bc2e>] ? drm_atomic_check_only+0x18e/0x590 [drm] [87356.855399] [<ffffffffc006c067>] drm_atomic_commit+0x37/0x60 [drm] [87356.855419] [<ffffffffc0189949>] drm_atomic_helper_disable_plane+0xa9/0xf0 [drm_kms_helper] [87356.855454] [<ffffffffc005b269>] __setplane_internal+0x169/0x250 [drm] [87356.855492] [<ffffffffc006a7ea>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [87356.855527] [<ffffffffc005f056>] drm_mode_setplane+0x136/0x1b0 [drm] [87356.855556] [<ffffffffc0050752>] drm_ioctl+0x152/0x540 [drm] [87356.855591] [<ffffffffc005ef20>] ? drm_plane_check_pixel_format+0x50/0x50 [drm] [87356.855598] [<ffffffff81222caf>] do_vfs_ioctl+0x29f/0x490 [87356.855604] [<ffffffff8106b544>] ? __do_page_fault+0x1b4/0x400 [87356.855609] [<ffffffff81222f19>] SyS_ioctl+0x79/0x90 [87356.855617] [<ffffffff8183c672>] entry_SYSCALL_64_fastpath+0x16/0x71 [87356.855621] ---[ end trace b051207009ce3deb ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1583817 Title: WARNING: CPU: 1 PID: 865 at /home/kernel/COD/linux/drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b0/0x1c0 [drm] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1583817/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
