Bug 57066

Summary: [ilk] IBX PCH hdmi port still using transcoder B
Product: DRI Reporter: Chris Wilson <chris>
Component: DRM/IntelAssignee: Daniel Vetter <daniel>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: ben, chris, daniel, florian, jbarnes
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
IBX w/a for SDVO none

Description Chris Wilson 2012-11-13 14:02:55 UTC 
[ 1814.480052] WARNING: at drivers/gpu/drm/i915/intel_display.c:1487 assert_pch_hdmi_disabled+0xad/0xb5()
[ 1814.480053] Hardware name: Libretto W100
[ 1814.480054] IBX PCH hdmi port still using transcoder B
[ 1814.480058] Pid: 54, comm: kworker/0:2 Not tainted 3.7.0-rc2+ #83
[ 1814.480059] Call Trace:
[ 1814.480066]  [<c1024ec5>] ? warn_slowpath_common+0x77/0x8a
[ 1814.480070]  [<c1211571>] ? assert_pch_hdmi_disabled+0xad/0xb5
[ 1814.480073]  [<c1211571>] ? assert_pch_hdmi_disabled+0xad/0xb5
[ 1814.480076]  [<c1024f28>] ? warn_slowpath_fmt+0x33/0x37
[ 1814.480079]  [<c1211571>] ? assert_pch_hdmi_disabled+0xad/0xb5
[ 1814.480083]  [<c1213875>] ? intel_disable_plane+0x3a/0x4c
[ 1814.480086]  [<c1213d79>] ? ironlake_crtc_disable+0x3dc/0x790
[ 1814.480090]  [<c102703c>] ? vprintk+0x37/0x3b
[ 1814.480093]  [<c1217a2f>] ? intel_crtc_update_dpms+0x4e/0x5e
[ 1814.480100]  [<c12249e2>] ? intel_sdvo_dpms+0x48/0x71
[ 1814.480106]  [<c11dd2db>] ? drm_fb_helper_dpms.isra.5+0x5e/0xa0
[ 1814.480110]  [<c11dddcb>] ? drm_fb_helper_blank+0x30/0x33
[ 1814.480113]  [<c1185fc9>] ? fb_blank+0x44/0x74
[ 1814.480118]  [<c118cee1>] ? fbcon_clear+0x157/0x157
[ 1814.480121]  [<c118cfc4>] ? fbcon_blank+0xe3/0x1b2
[ 1814.480126]  [<c1170d5f>] ? __delay+0x6/0x7
[ 1814.480130]  [<c118a79d>] ? get_color+0x1c/0xd4
[ 1814.480133]  [<c118f281>] ? bit_putcs+0x371/0x371
[ 1814.480136]  [<c118c462>] ? fbcon_cursor+0xec/0xfe
[ 1814.480141]  [<c102fcd0>] ? lock_timer_base.isra.35+0x18/0x33
[ 1814.480144]  [<c1030252>] ? try_to_del_timer_sync+0x3c/0x42
[ 1814.480148]  [<c118cee1>] ? fbcon_clear+0x157/0x157
[ 1814.480153]  [<c11d39c8>] ? do_blank_screen+0x119/0x1a1
[ 1814.480156]  [<c11d3e8d>] ? console_callback+0xb3/0xd5
[ 1814.480161]  [<c1037cb1>] ? process_one_work+0x130/0x268
[ 1814.480165]  [<c11d3dda>] ? poke_blanked_console+0x9d/0x9d
[ 1814.480168]  [<c1038054>] ? worker_thread+0xf6/0x184
[ 1814.480171]  [<c1037f5e>] ? rescuer_thread+0x158/0x158
[ 1814.480175]  [<c103b524>] ? kthread+0x68/0x6d
[ 1814.480180]  [<c1419df7>] ? ret_from_kernel_thread+0x1b/0x28
[ 1814.480184]  [<c103b4bc>] ? __kthread_parkme+0x50/0x50
[ 1814.480186] ---[ end trace 7c6d85ce10c29ef8 ]---
Comment 1 Chris Wilson 2012-11-21 10:44:58 UTC 
Created attachment 70358 [details] [review]
IBX w/a for SDVO
Comment 2 Chris Wilson 2012-11-21 15:28:50 UTC 
dinq commit 46066f958533e0794001388109c33c006b03df2a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Nov 21 10:44:23 2012 +0000

    drm/i915: Apply the IBX transcoder A w/a for HDMI to SDVO as well
Comment 3 Florian Mickler 2012-12-22 09:24:41 UTC 
A patch referencing this bug report has been merged in Linux v3.8-rc1:

commit 776ca7cf5bcc6892ad5bd781279744a654a8ed23
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Nov 21 10:44:23 2012 +0000

    drm/i915: Apply the IBX transcoder A w/a for HDMI to SDVO as well

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