[Bug 101302] [HSW] no Intel HDMI video output with kernel 4.4 and 4.9

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101302

krisman at collabora.co.uk changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|intel-gfx-bugs at lists.freede |krisman at collabora.co.uk
                   |sktop.org                   |
             Status|REOPENED                    |ASSIGNED

--- Comment #4 from krisman at collabora.co.uk ---
(In reply to stef at zechner77.de from comment #3)
> Created attachment 132026 [details]
> dmesg output
> 
> I compiled latest drm-intel-nightly (SHA 18d562c9) and still get no image.
> 
> I also attached the full dmesg output with "drm.debug=0xe log_buf_len=4M"

Thanks for the information,

There are 3 things that caught my attention in your log:

1) The hotplug task is triggering every few seconds and (apparently)
successfully detecting the monitor attached to HDMI-A-3 every time.

2) After each detection, errors like this occur:

 [drm:intel_engine_cmd_parser [i915]] CMD: Rejected register 0x00002360 in
command: 0x11000001 (rcs0)
[   50.339786] [drm:intel_engine_cmd_parser [i915]] CMD: Rejected register
0x00002360 in command: 0x11000001 (rcs0)

3) Finally, we have:

 [drm:intel_prepare_plane_fb [i915]] failed to pin object

Which doesn't seem related to the rest.  

Since the monitor is identified and the connector modes are successfully
probed,  I want to start by figuring out what made the register value to be
rejected.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20170619/9dc9b1d5/attachment.html>