Bug 101871

Summary:	Video freezes if external display is attached/Yoga2 13 Pro
Product:	Drivers	Reporter:	kernel.org
Component:	Video(DRI - Intel)	Assignee:	intel-gfx-bugs (intel-gfx-bugs)
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	intel-gfx-bugs
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	3.19.0-22-generic #22-Ubuntu SMP Tue Jun 16 17:15:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux	Subsystem:
Regression:	No	Bisected commit-id:

Description kernel.org 2015-07-23 13:30:11 UTC

If attaching a external monitor to my laptop, very frequently the screen freezes. Mouse still moves, but no action can be done on the windows. What can be seen on the display is only a part of the desktop, no panel or Unity dock can be seen. Suspend and resume doesnt help. Killing the lightdm restarts X and resolves the issue, however all applications need to be restarted. 

Relevant output in dmesg/syslog:

Jul 23 13:31:44 hostname kernel: [68516.485214] ------------[ cut here ]------------
Jul 23 13:31:44 hostname kernel: [68516.485257] WARNING: CPU: 1 PID: 30278 at /build/buildd/linux-3.19.0/drivers/gpu/drm/i915/intel_display.c:1256 assert_plane.constprop.87+0x7b/0x90 [i915]()
Jul 23 13:31:44 hostname kernel: [68516.485258] plane A assertion failure (expected on, current off)
Jul 23 13:31:44 hostname kernel: [68516.485280] Modules linked in: nls_utf8 btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c uas usb_storage ctr ccm binfmt_misc rfcomm bnep nls_iso8859_1 hid_sensor_accel_3d hid_sensor_magn_3d hid_sensor_gyro_3d hid_sensor_als hid_sensor_rotation hid_sensor_incl_3d hid_sensor_trigger industrialio_triggered_buffer kfifo_buf industrialio uvcvideo hid_sensor_iio_common videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common hid_multitouch videodev hid_logitech_hidpp media btusb hid_sensor_hub bluetooth arc4 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller snd_hda_codec intel_rapl snd_hwdep iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp snd_pcm kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_seq_midi snd_seq_midi_event joydev aesni_intel iwlmvm mac80211 aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd snd_rawmidi i915 iwlwifi snd_seq serio_raw drm_kms_helper cfg80211 drm snd_seq_device snd_timer snd lpc_ich shpchp mei_me soundcore i2c_algo_bit mei int3403_thermal dw_dmac spi_pxa2xx_platform video i2c_hid int3402_thermal dw_dmac_core i2c_designware_platform i2c_designware_core 8250_dw int3400_thermal soc_button_array processor_thermal_device acpi_thermal_rel intel_smartconnect mac_hid parport_pc ppdev lp parport autofs4 hid_logitech_dj usbhid hid psmouse ahci libahci sdhci_acpi sdhci
Jul 23 13:31:44 hostname kernel: [68516.485310] CPU: 1 PID: 30278 Comm: Xorg Tainted: G        W      3.19.0-22-generic #22-Ubuntu
Jul 23 13:31:44 hostname kernel: [68516.485311] Hardware name: LENOVO 20266/hostname2, BIOS 76CN35WW 03/25/2014
Jul 23 13:31:44 hostname kernel: [68516.485314]  ffffffffc04ee0a8 ffff8801f80ab6f8 ffffffff817c4188 0000000010d810d8
Jul 23 13:31:44 hostname kernel: [68516.485315]  ffff8801f80ab748 ffff8801f80ab738 ffffffff810769aa ffff88023407d000
Jul 23 13:31:44 hostname kernel: [68516.485317]  0000000000000000 ffff880252639000 ffff88003fa52800 ffff88003fa52800
Jul 23 13:31:44 hostname kernel: [68516.485318] Call Trace:
Jul 23 13:31:44 hostname kernel: [68516.485326]  [<ffffffff817c4188>] dump_stack+0x45/0x57
Jul 23 13:31:44 hostname kernel: [68516.485329]  [<ffffffff810769aa>] warn_slowpath_common+0x8a/0xc0
Jul 23 13:31:44 hostname kernel: [68516.485331]  [<ffffffff81076a26>] warn_slowpath_fmt+0x46/0x50
Jul 23 13:31:44 hostname kernel: [68516.485356]  [<ffffffffc048a2eb>] assert_plane.constprop.87+0x7b/0x90 [i915]
Jul 23 13:31:44 hostname kernel: [68516.485377]  [<ffffffffc0492561>] hsw_disable_ips+0x41/0x190 [i915]
Jul 23 13:31:44 hostname kernel: [68516.485396]  [<ffffffffc0492928>] intel_crtc_disable_planes+0x48/0x140 [i915]
Jul 23 13:31:44 hostname kernel: [68516.485414]  [<ffffffffc049368f>] haswell_crtc_disable+0x4f/0x3c0 [i915]
Jul 23 13:31:44 hostname kernel: [68516.485433]  [<ffffffffc0494629>] __intel_set_mode+0xa59/0xc80 [i915]
Jul 23 13:31:44 hostname kernel: [68516.485452]  [<ffffffffc049b1fb>] intel_crtc_set_config+0xbfb/0xf70 [i915]
Jul 23 13:31:44 hostname kernel: [68516.485469]  [<ffffffffc028cae6>] drm_mode_set_config_internal+0x66/0x100 [drm]
Jul 23 13:31:44 hostname kernel: [68516.485479]  [<ffffffffc03b0298>] restore_fbdev_mode+0xc8/0xf0 [drm_kms_helper]
Jul 23 13:31:44 hostname kernel: [68516.485488]  [<ffffffffc03b2309>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x80 [drm_kms_helper]
Jul 23 13:31:44 hostname kernel: [68516.485495]  [<ffffffffc03b2382>] drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper]
Jul 23 13:31:44 hostname kernel: [68516.485515]  [<ffffffffc04a717a>] intel_fbdev_set_par+0x1a/0x60 [i915]
Jul 23 13:31:44 hostname kernel: [68516.485519]  [<ffffffff816ef28b>] ? netlink_poll+0x13b/0x1e0
Jul 23 13:31:44 hostname kernel: [68516.485522]  [<ffffffff8143515a>] fb_set_var+0x18a/0x410
Jul 23 13:31:44 hostname kernel: [68516.485525]  [<ffffffff810a72a8>] ? __enqueue_entity+0x78/0x80
Jul 23 13:31:44 hostname kernel: [68516.485528]  [<ffffffff810aec70>] ? enqueue_entity+0x400/0xc30
Jul 23 13:31:44 hostname kernel: [68516.485530]  [<ffffffff8142bb89>] fbcon_blank+0x229/0x300
Jul 23 13:31:44 hostname kernel: [68516.485534]  [<ffffffff814bba3a>] do_unblank_screen+0xba/0x1f0
Jul 23 13:31:44 hostname kernel: [68516.485537]  [<ffffffff814b152d>] complete_change_console+0x5d/0xf0
Jul 23 13:31:44 hostname kernel: [68516.485539]  [<ffffffff814b274a>] vt_ioctl+0x118a/0x1460
Jul 23 13:31:44 hostname kernel: [68516.485551]  [<ffffffffc028191c>] ? drm_ioctl+0x8c/0x680 [drm]
Jul 23 13:31:44 hostname kernel: [68516.485555]  [<ffffffff814a4721>] tty_ioctl+0x411/0xcb0
Jul 23 13:31:44 hostname kernel: [68516.485558]  [<ffffffff81234cbe>] ? fsnotify+0x37e/0x530
Jul 23 13:31:44 hostname kernel: [68516.485560]  [<ffffffff814345ee>] ? brightness_store+0xce/0x100
Jul 23 13:31:44 hostname kernel: [68516.485563]  [<ffffffff81209250>] do_vfs_ioctl+0x2e0/0x4e0
Jul 23 13:31:44 hostname kernel: [68516.485565]  [<ffffffff811f71a5>] ? __sb_end_write+0x35/0x70
Jul 23 13:31:44 hostname kernel: [68516.485569]  [<ffffffff811f4c12>] ? vfs_write+0x1b2/0x1f0
Jul 23 13:31:44 hostname kernel: [68516.485571]  [<ffffffff812094d1>] SyS_ioctl+0x81/0xa0
Jul 23 13:31:44 hostname kernel: [68516.485573]  [<ffffffff817cb24d>] system_call_fastpath+0x16/0x1b
Jul 23 13:31:44 hostname kernel: [68516.485574] ---[ end trace 209a5a31aa714a02 ]---

lspci:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Device 0a03 (rev 09)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
00:1f.6 Signal processing controller: Intel Corporation 8 Series Thermal (rev 04)
01:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)

Comment 1 Jani Nikula 2015-10-07 11:13:16 UTC

We seem to have neglected this bug. Apologies.

If the problem persists with latest kernels, please file a bug at the freedesktop.org bugzilla [1], referencing this bug. Thank you.

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel