[Bug 83600] [HSW] HDMI monitor does not work via active DisplayPort adapter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83600

--- Comment #9 from Chris Cheney <chris.cheney at gmail.com> ---
Updated kernel to 3.17.0-994.201410092205
(ea4bec8e96ea8b33b49a7892c1c7f20041a56da6) and still have the same problem and
the following backtrace on boot:

[   12.508853] ------------[ cut here ]------------
[   12.508895] WARNING: CPU: 0 PID: 1495 at
/home/apw/COD/linux/drivers/gpu/drm/i915/intel_dp.c:3736
intel_dp_link_down+0x223/0x260 [i915]()
[   12.508923] Modules linked in: vmnet(OE) parport_pc vmw_vsock_vmci_transport
vsock vmw_vmci vmmon(OE) usblp bnep rfcomm bluetooth joydev hid_logitech_dj
usbhid hid mxm_wmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel
aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd serio_raw rtc_efi mei_me
mei lpc_ich shpchp snd_hda_codec_hdmi snd_hda_codec_realtek wmi
snd_hda_codec_generic mac_hid tpm_infineon snd_hda_intel snd_hda_controller
snd_hda_codec snd_hwdep snd_pcm i915 snd_seq_midi snd_seq_midi_event
snd_rawmidi snd_seq video snd_seq_device snd_timer drm_kms_helper drm snd
soundcore ppdev lp parport nls_iso8859_1 igb e1000e psmouse firewire_ohci
i2c_algo_bit ahci dca firewire_core ptp libahci crc_itu_t pps_core
[   12.508923]  [last unloaded: vmnet]
[   12.508926] CPU: 0 PID: 1495 Comm: Xorg Tainted: G           OE 
3.17.0-994-generic #201410092205
[   12.508927] Hardware name: Gigabyte Technology Co., Ltd.
Z87X-UD5H/Z87X-UD5H-CF, BIOS F10 08/21/2014
[   12.508928]  0000000000000e98 ffff8807f13976d8 ffffffff82796b97
0000000000000286
[   12.508930]  0000000000000000 ffff8807f1397718 ffffffff82074a3c
ffff8807f1397748
[   12.508931]  ffff8800d7d00000 ffff8800d7d150e0 ffff8800d7df0000
0000000080000002
[   12.508931] Call Trace:
[   12.508938]  [<ffffffff82796b97>] dump_stack+0x46/0x58
[   12.508943]  [<ffffffff82074a3c>] warn_slowpath_common+0x8c/0xc0
[   12.508945]  [<ffffffff82074a8a>] warn_slowpath_null+0x1a/0x20
[   12.508961]  [<ffffffffc032a763>] intel_dp_link_down+0x223/0x260 [i915]
[   12.508975]  [<ffffffffc0331171>] intel_dp_complete_link_train+0x101/0x220
[i915]
[   12.508987]  [<ffffffffc03289d7>] intel_ddi_pre_enable+0x137/0x1b0 [i915]
[   12.508998]  [<ffffffffc0315574>] haswell_crtc_enable+0x134/0x360 [i915]
[   12.509009]  [<ffffffffc0314b77>] __intel_set_mode+0x327/0x490 [i915]
[   12.509020]  [<ffffffffc03176b6>] intel_set_mode+0x16/0x30 [i915]
[   12.509031]  [<ffffffffc03181b6>] intel_crtc_set_config+0x1e6/0x370 [i915]
[   12.509046]  [<ffffffffc0230540>] ? drm_modeset_lock+0x40/0x100 [drm]
[   12.509055]  [<ffffffffc0221fa0>] drm_mode_set_config_internal+0x60/0x100
[drm]
[   12.509061]  [<ffffffffc0289583>] restore_fbdev_mode+0xd3/0x100
[drm_kms_helper]
[   12.509065]  [<ffffffffc028967c>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x2c/0x50 [drm_kms_helper]
[   12.509069]  [<ffffffffc028ad61>] drm_fb_helper_set_par+0x31/0x80
[drm_kms_helper]
[   12.509072]  [<ffffffffc028acdc>] drm_fb_helper_hotplug_event+0xcc/0x120
[drm_kms_helper]
[   12.509076]  [<ffffffffc028ad79>] drm_fb_helper_set_par+0x49/0x80
[drm_kms_helper]
[   12.509087]  [<ffffffffc03223aa>] intel_fbdev_set_par+0x1a/0x60 [i915]
[   12.509091]  [<ffffffff824118f3>] fb_set_var+0x283/0x3a0
[   12.509094]  [<ffffffff820ab120>] ? check_preempt_wakeup+0x110/0x210
[   12.509096]  [<ffffffff82408734>] fbcon_blank+0x1e4/0x2d0
[   12.509099]  [<ffffffff8249688e>] do_unblank_screen.part.21+0x9e/0x180
[   12.509101]  [<ffffffff824969b8>] do_unblank_screen+0x48/0x80
[   12.509103]  [<ffffffff8248bf15>] complete_change_console+0x65/0xf0
[   12.509105]  [<ffffffff8248d0cc>] vt_ioctl+0x112c/0x11c0
[   12.509107]  [<ffffffff820b3c93>] ? __wake_up+0x53/0x70
[   12.509116]  [<ffffffffc021b1e0>] ? drm_setmaster_ioctl+0xe0/0xe0 [drm]
[   12.509118]  [<ffffffff82480588>] tty_ioctl+0x298/0x8f0
[   12.509121]  [<ffffffff821fbfe5>] do_vfs_ioctl+0x75/0x2c0
[   12.509124]  [<ffffffff821e9f26>] ? vfs_write+0x196/0x1f0
[   12.509128]  [<ffffffff82206535>] ? __fget_light+0x25/0x70
[   12.509129]  [<ffffffff821fc2c1>] SyS_ioctl+0x91/0xb0
[   12.509132]  [<ffffffff827a46ed>] system_call_fastpath+0x1a/0x1f
[   12.509134] ---[ end trace 570811c9b70289e6 ]---

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