kern/49431: External HDMI does not detect plugging

[ryoon%NetBSD.org@localhost]

>Number:         49431
>Category:       kern
>Synopsis:       External HDMI does not detect plugging
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 30 01:00:00 +0000 2014
>Originator:     Ryo ONODERA
>Release:        NetBSD 7.99.2
>Organization:
	
>Environment:
	
	
System: NetBSD angelcake.elements.tetera.org 7.99.2 NetBSD 7.99.2 (GENERIC) #0: Thu Nov 27 14:44:25 JST 2014 ryo_on%angelcake.elements.tetera.org@localhost:/usr/world/7.99/amd64/obj/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
External HDMI (HDMI1 in xrandr output) always "disconnected".
My machine is Vaio Pro 11,
it has Intel Haswell-ULT Integrated Graphic Controller.

# By the way, Option "NoAccel" in xorg.conf is needed.
# Without NoAccel, X causes kernel panic.

% xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920x1080     60.01*+  40.00
1400x1050     59.98
1280x1024     60.02
1280x960      60.00
1024x768      60.00
800x600       60.32    56.25
640x480       59.94
HDMI1 disconnected (normal left inverted right x axis y axis)

%dmesg
(snip)
acpivga0 at acpi0 (GFX0): ACPI Display Adapter
acpiout0 at acpivga0 (DD1F, 0x001f): ACPI Display Output Device
acpiout0: brightness levels: [0-100]
acpiout1 at acpivga0 (DD01, 0x0100): ACPI Display Output Device
acpiout2 at acpivga0 (DD02, 0x0002): ACPI Display Output Device
acpiout3 at acpivga0 (DD03, 0x0300): ACPI Display Output Device
acpiout4 at acpivga0 (DD04, 0x0301): ACPI Display Output Device
acpiout5 at acpivga0 (DD05, 0x0302): ACPI Display Output Device
acpiout6 at acpivga0 (DD06, 0x0303): ACPI Display Output Device
acpiout7 at acpivga0 (DD07, 0x0304): ACPI Display Output Device
acpiout8 at acpivga0 (DD08, 0x0305): ACPI Display Output Device
acpiout9 at acpivga0 (DD09, 0x0009): ACPI Display Output Device
acpiout10 at acpivga0 (DD0A, 0x000a): ACPI Display Output Device
acpiout11 at acpivga0 (DD0B, 0x000b): ACPI Display Output Device
acpiout12 at acpivga0 (DD0C, 0x000c): ACPI Display Output Device
acpiout13 at acpivga0 (DD0D, 0x000d): ACPI Display Output Device
acpiout14 at acpivga0 (DD0E, 0x000e): ACPI Display Output Device
acpiout15 at acpivga0 (DD0F, 0x000f): ACPI Display Output Device
acpivga0: unknown output device acpiout1
acpivga0: unknown output device acpiout2
acpivga0: unknown output device acpiout3
acpivga0: unknown output device acpiout4
acpivga0: unknown output device acpiout5
acpivga0: unknown output device acpiout6
acpivga0: unknown output device acpiout7
acpivga0: unknown output device acpiout8
acpivga0: unknown output device acpiout9
acpivga0: unknown output device acpiout10
acpivga0: unknown output device acpiout11
acpivga0: unknown output device acpiout12
acpivga0: unknown output device acpiout13
acpivga0: unknown output device acpiout14
acpivga0: unknown output device acpiout15
acpivga0: connected output devices:
acpivga0:   0x0400 (acpiout0): Unknown Output Device, head 0
(snip)
i915drmkms0 at pci0 dev 2 function 0: vendor 8086 product 0a16 (rev. 0x0b)
drm: Memory usable by graphics device = 2048M
drm: Supports vblank timestamp caching Rev 2 (21.10.2013).
drm: Driver supports precise vblank timestamp query.
i915drmkms0: interrupting at ioapic0 pin 16 (i915)
intelfb0 at i915drmkms0
i915drmkms0: info: registered panic notifier
i915drmkms0: More than 8 outputs detected via ACPI
intelfb0: framebuffer at 0xffff80008e5f0000, size 1920x1080, depth 32, stride 7680
(snip)
drm: GMBUS [i915 gmbus dpc] timed out, falling back to bit banging on pin 4
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_start_link_train: failed to enable link training
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_complete_link_train: failed to start channel equalization
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
DRM error in intel_dp_aux_ch: dp_aux_ch not done status 0xa01500e1
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
Kernel RNG "15815 889 37" runs test FAILURE: too few runs of 4 0s (239 < 240)
cprng 15815 889 37: failed statistical RNG test
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify
acpivga0: bad notify



>How-To-Repeat:
	
>Fix:
	
I have no idea.

>Unformatted: