Comment 9 for bug 1540953

Nooon, crashed today when I docked my laptop :(

Unity freezed, had to reboot.

Not sure if this is the same bug. I have this is syslog:

Mar 17 20:53:05 duff-portable kernel: [95632.465364] Hardware name: LENOVO 20BXCTO1WW/20BXCTO1WW, BIOS JBET53WW (1.18 ) 09/14/2015
Mar 17 20:53:05 duff-portable kernel: [95632.465464] RIP: 0010:[<ffffffffc018528b>] [<ffffffffc018528b>] drm_dp_payload_send_msg+0x15b/0x210 [drm_kms_helper]
Mar 17 20:53:05 duff-portable kernel: [95632.465572] RAX: ffff88032e2ee3c0 RBX: 000000021f7e1000 RCX: ffff880329913910
Mar 17 20:53:05 duff-portable kernel: [95632.465662] RBP: ffff8800352cbae0 R08: 0000000000019ec0 R09: ffffffffc018522b
Mar 17 20:53:05 duff-portable kernel: [95632.465751] R13: ffff880329913658 R14: ffff880329913658 R15: ffff8800a41d7000
Mar 17 20:53:05 duff-portable kernel: [95632.465846] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar 17 20:53:05 duff-portable kernel: [95632.465918] Stack:
Mar 17 20:53:05 duff-portable kernel: [95632.465974] 00000000a41d0bf2 0000000000000001 ffff8803291fb510 ffff880329913658
Mar 17 20:53:05 duff-portable kernel: [95632.466061] Call Trace:
Mar 17 20:53:05 duff-portable kernel: [95632.466154] [<ffffffffc036e878>] intel_mst_enable_dp+0xf8/0x180 [i915]
Mar 17 20:53:05 duff-portable kernel: [95632.466253] [<ffffffff81820832>] ? mutex_lock+0x12/0x30
Mar 17 20:53:05 duff-portable kernel: [95632.466357] [<ffffffffc0069761>] ? drm_atomic_check_only+0x181/0x600 [drm]
Mar 17 20:53:05 duff-portable kernel: [95632.466450] [<ffffffffc0189bb6>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]
Mar 17 20:53:05 duff-portable kernel: [95632.466560] [<ffffffffc005d5b0>] drm_mode_setcrtc+0x3e0/0x500 [drm]
Mar 17 20:53:05 duff-portable kernel: [95632.466647] [<ffffffffc005d1d0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
Mar 17 20:53:05 duff-portable kernel: [95632.466718] [<ffffffff8108ddc1>] ? __set_task_blocked+0x41/0xa0
Mar 17 20:53:05 duff-portable kernel: [95632.466788] [<ffffffff81228ce9>] SyS_ioctl+0x79/0x90
Mar 17 20:53:05 duff-portable kernel: [95632.466853] [<ffffffff81822a36>] entry_SYSCALL_64_fastpath+0x16/0x75
Mar 17 20:53:05 duff-portable kernel: [95632.467050] RIP [<ffffffffc018528b>] drm_dp_payload_send_msg+0x15b/0x210 [drm_kms_helper]
Mar 17 20:53:05 duff-portable kernel: [95632.467122] CR2: 000000021f7e1028

xserver-xorg-video-intel 2:2.99.917+git1603161