[Intel-gfx] still experiencing oops connecting Laptop to docking Station

[Nicolas Kalkhof]

Hallo,

I'm still getting oops with drm-intel-nightly when I try to connect my Laptop to its docking station or when I boot up and the Laptop is already connected.

kdump doesn't seem to work with current drm-intel-nightly so I've attached an Image (sorry for the bad quality). http://imgur.com/463ZQny


My system boots up without Kernel Panic when NOT connected to dock. However dmesg still reveals a problem:

[   20.137622] [drm:intel_connector_check_state] [CONNECTOR:33:eDP-1]
[   20.137625] [drm:check_encoder_state] [ENCODER:31:DAC-31]
[   20.137626] [drm:check_encoder_state] [ENCODER:32:TMDS-32]
[   20.137627] [drm:check_encoder_state] [ENCODER:40:TMDS-40]
[   20.137628] [drm:check_encoder_state] [ENCODER:42:DP MST-42]
[   20.137629] [drm:check_encoder_state] [ENCODER:43:DP MST-43]
[   20.137629] [drm:check_encoder_state] [ENCODER:44:DP MST-44]
[   20.137630] [drm:check_encoder_state] [ENCODER:47:TMDS-47]
[   20.137630] [drm:check_encoder_state] [ENCODER:49:DP MST-49]
[   20.137631] [drm:check_encoder_state] [ENCODER:50:DP MST-50]
[   20.137631] [drm:check_encoder_state] [ENCODER:51:DP MST-51]
[   20.137632] [drm:check_crtc_state] [CRTC:20]
[   20.137640] [drm:check_crtc_state] *ERROR* mismatch in dpll_hw_state.wrpll (expected 0x90280202, found 0x00000000)
[   20.137641] ------------[ cut here ]------------
[   20.137643] WARNING: CPU: 0 PID: 1086 at drivers/gpu/drm/i915/intel_display.c:12114 check_crtc_state+0x8a5/0xfc0()
[   20.137643] pipe state doesn't match!
[   20.137644] Modules linked in: snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic iwlmvm iwlwifi snd_hda_intel snd_hda_codec snd_hda_core snd_pcm snd_timer
[   20.137651] CPU: 0 PID: 1086 Comm: X Tainted: G        W       4.1.0-rc4+ #5
[   20.137652] Hardware name: LENOVO qqqqENX407/qqqqENX407, BIOS GLET77WW (2.31 ) 01/27/2015
[   20.137652]  0000000000000000 ffffffff817c5f10 ffffffff81645beb ffff880406cb7878
[   20.137654]  ffffffff81047047 ffff880409d87000 ffff88040be64000 ffff88040bf70000
[   20.137655]  0000000000000001 ffff88040be64340 ffffffff810470c5 ffffffff817f43d3
[   20.137657] Call Trace:
[   20.137660]  [<ffffffff81645beb>] ? dump_stack+0x40/0x50
[   20.137663]  [<ffffffff81047047>] ? warn_slowpath_common+0x77/0xb0
[   20.137665]  [<ffffffff810470c5>] ? warn_slowpath_fmt+0x45/0x50
[   20.137666]  [<ffffffff8137d555>] ? check_crtc_state+0x8a5/0xfc0
[   20.137668]  [<ffffffff8108d504>] ? ktime_get+0x34/0xb0
[   20.137671]  [<ffffffff8138ff29>] ? intel_modeset_check_state+0x229/0xb50
[   20.137673]  [<ffffffff81390e38>] ? intel_crtc_set_config+0x578/0x650
[   20.137675]  [<ffffffff8131136f>] ? drm_mode_set_config_internal+0x5f/0x100
[   20.137677]  [<ffffffff81315cda>] ? drm_mode_setcrtc+0x22a/0x5f0
[   20.137679]  [<ffffffff8130766a>] ? drm_ioctl+0x15a/0x580
[   20.137682]  [<ffffffff81108ce8>] ? do_vfs_ioctl+0x2e8/0x4f0
[   20.137684]  [<ffffffff8103c19b>] ? __do_page_fault+0x17b/0x3e0
[   20.137685]  [<ffffffff81108f26>] ? SyS_ioctl+0x36/0x80
[   20.137688]  [<ffffffff8164dd9b>] ? system_call_fastpath+0x16/0x6e
[   20.137688] ---[ end trace a67764a031b81585 ]---

Full dmesg goes here: http://pastebin.com/fzjnsfyQ

Any Clues?