[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

--- Comment #7 from stef at zechner77.de <stef at zechner77.de> ---
Created attachment 132235
  --> https://bugs.freedesktop.org/attachment.cgi?id=132235&action=edit
dmesg output: monitor connected to HDMI is working

I just tried to connect my LG monitor to HDMI output.
And I was surprised that it is working well. (see attachment
dmesg_monitor_short_txt.gz)

So it seems to be an issue with Intel HDMI output and my Video Beamer "Samsung
SP-A600XB".
Anyhow I also connected the HDMI beamer solely (no additional monitor) and the
image disappeared during Linux boot like previously described.

Anybody has an idea what may be different between beamer and monitor? And how I
can fix this with the latest kernel?

thanks
Stefan

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