Comment 5 for bug 1322644

Christopher,

I have upgraded to 3.15-rc8, but the problem is still there.

uname -a
Linux pr036037 3.15.0-031500rc8-generic #201406012235 SMP Mon Jun 2 02:36:11 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

dmesg output =

[...]
  488.947955] cfg80211: (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 4940.374152] psmouse serio1: Trackpad at isa0060/serio1/input0 lost sync at byte 1
[ 4940.386220] psmouse serio1: Trackpad at isa0060/serio1/input0 - driver resynced.
[11987.705683] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[11987.712346] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[11987.743541] [drm:cpt_verify_modeset] *ERROR* mode set failed: pipe B stuck
[11987.807522] ------------[ cut here ]------------
[11987.807560] WARNING: CPU: 2 PID: 1364 at /home/apw/COD/linux/drivers/gpu/drm/i915/intel_display.c:9761 check_encoder_state+0x1fa/0x270 [i915]()
[11987.807562] encoder's hw state doesn't match sw tracking (expected 1, found 0)
[11987.807563] Modules linked in: ctr ccm snd_usb_audio snd_usbmidi_lib snd_hrtimer nvram pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) dm_crypt uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic dell_wmi sparse_keymap snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel dell_laptop dcdbas snd_pcm kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd microcode snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 snd_seq iwldvm joydev snd_seq_device serio_raw mac80211 snd_timer iwlwifi snd mei_me lpc_ich cfg80211 mei soundcore intel_smartconnect rfcomm bnep bluetooth 6lowpan_iphc parport_pc ppdev mac_hid lp parport binfmt_misc hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper psmouse drm ahci libahci wmi video
[11987.807607] CPU: 2 PID: 1364 Comm: Xorg Tainted: G OE 3.15.0-031500rc8-generic #201406012235
[11987.807609] Hardware name: Dell Inc. Dell System XPS L321X/085X6F, BIOS A08 01/22/2013
[11987.807610] 0000000000002621 ffff880119057b38 ffffffff81762641 0000000000000007
[11987.807613] ffff880119057b88 ffff880119057b78 ffffffff81069e2c 0008030419057b88
[11987.807616] ffff880119022000 ffff88003662c320 0000000000000000 ffff88003662c000
[11987.807618] Call Trace:
[11987.807624] [<ffffffff81762641>] dump_stack+0x46/0x58
[11987.807628] [<ffffffff81069e2c>] warn_slowpath_common+0x8c/0xc0
[11987.807631] [<ffffffff81069f16>] warn_slowpath_fmt+0x46/0x50
[11987.807650] [<ffffffffa00f846a>] check_encoder_state+0x1fa/0x270 [i915]
[11987.807667] [<ffffffffa010d30d>] intel_modeset_check_state+0x5d/0xa0 [i915]
[11987.807684] [<ffffffffa010d375>] intel_set_mode+0x25/0x30 [i915]
[11987.807699] [<ffffffffa010dd56>] intel_crtc_set_config+0x196/0x2f0 [i915]
[11987.807703] [<ffffffff811b3d64>] ? kmem_cache_alloc_trace+0x1b4/0x1f0
[11987.807718] [<ffffffffa003e100>] drm_mode_set_config_internal+0x60/0xf0 [drm]
[11987.807731] [<ffffffffa0041d90>] drm_mode_setcrtc+0x280/0x4e0 [drm]
[11987.807743] [<ffffffffa003d362>] ? drm_modeset_unlock_all+0x52/0x60 [drm]
[11987.807753] [<ffffffffa0031dcb>] drm_ioctl+0x25b/0x580 [drm]
[11987.807765] [<ffffffffa0041b10>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
[11987.807769] [<ffffffff811e2aa5>] do_vfs_ioctl+0x75/0x2c0
[11987.807772] [<ffffffff81021ec5>] ? syscall_trace_enter+0x165/0x280
[11987.807775] [<ffffffff811ecff5>] ? __fget_light+0x25/0x70
[11987.807777] [<ffffffff811e2d81>] SyS_ioctl+0x91/0xb0
[11987.807780] [<ffffffff81778cbf>] tracesys+0xe1/0xe6
[11987.807782] ---[ end trace 6a4eb77f7ea2ce64 ]---
[11987.807809] [drm:intel_pipe_config_compare] *ERROR* mismatch in has_dp_encoder (expected 1, found 0)
[11987.807811] ------------[ cut here ]------------
[11987.807828] WARNING: CPU: 2 PID: 1364 at /home/apw/COD/linux/drivers/gpu/drm/i915/intel_display.c:9834 check_crtc_state+0x255/0x340 [i915]()
[11987.807829] pipe state doesn't match!
[11987.807830] Modules linked in: ctr ccm snd_usb_audio snd_usbmidi_lib snd_hrtimer nvram pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) dm_crypt uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic dell_wmi sparse_keymap snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel dell_laptop dcdbas snd_pcm kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd microcode snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 snd_seq iwldvm joydev snd_seq_device serio_raw mac80211 snd_timer iwlwifi snd mei_me lpc_ich cfg80211 mei soundcore intel_smartconnect rfcomm bnep bluetooth 6lowpan_iphc parport_pc ppdev mac_hid lp parport binfmt_misc hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper psmouse drm ahci libahci wmi video
[11987.807867] CPU: 2 PID: 1364 Comm: Xorg Tainted: G W OE 3.15.0-031500rc8-generic #201406012235
[11987.807868] Hardware name: Dell Inc. Dell System XPS L321X/085X6F, BIOS A08 01/22/2013
[11987.807870] 000000000000266a ffff8801190578d8 ffffffff81762641 0000000000000007
[11987.807872] ffff880119057928 ffff880119057918 ffffffff81069e2c ffff880119057948
[11987.807874] ffff88011a2e5000 ffff88003662c350 ffff88003662c000 ffff88011a2e56e0
[11987.807876] Call Trace:
[11987.807878] [<ffffffff81762641>] dump_stack+0x46/0x58
[11987.807882] [<ffffffff81069e2c>] warn_slowpath_common+0x8c/0xc0
[11987.807885] [<ffffffff81069f16>] warn_slowpath_fmt+0x46/0x50
[11987.807901] [<ffffffffa00ff605>] check_crtc_state+0x255/0x340 [i915]
[11987.807918] [<ffffffffa010d315>] intel_modeset_check_state+0x65/0xa0 [i915]
[11987.807933] [<ffffffffa010d375>] intel_set_mode+0x25/0x30 [i915]
[11987.807947] [<ffffffffa010dd56>] intel_crtc_set_config+0x196/0x2f0 [i915]
[11987.807950] [<ffffffff811b3d64>] ? kmem_cache_alloc_trace+0x1b4/0x1f0
[11987.807963] [<ffffffffa003e100>] drm_mode_set_config_internal+0x60/0xf0 [drm]
[11987.807975] [<ffffffffa0041d90>] drm_mode_setcrtc+0x280/0x4e0 [drm]
[11987.807986] [<ffffffffa003d362>] ? drm_modeset_unlock_all+0x52/0x60 [drm]
[11987.807996] [<ffffffffa0031dcb>] drm_ioctl+0x25b/0x580 [drm]
[11987.808008] [<ffffffffa0041b10>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
[11987.808011] [<ffffffff811e2aa5>] do_vfs_ioctl+0x75/0x2c0
[11987.808013] [<ffffffff81021ec5>] ? syscall_trace_enter+0x165/0x280
[11987.808016] [<ffffffff811ecff5>] ? __fget_light+0x25/0x70
[11987.808018] [<ffffffff811e2d81>] SyS_ioctl+0x91/0xb0
[11987.808020] [<ffffffff81778cbf>] tracesys+0xe1/0xe6
[11987.808022] ---[ end trace 6a4eb77f7ea2ce65 ]---
[12003.435260] show_signal_msg: 66 callbacks suppressed
[12003.435266] Watchdog[4369]: segfault at 0 ip 00007f1c62126808 sp 00007f1c51b6f720 error 6 in libcontent.so[7f1c61a1e000+f4f000]