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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - card detects non-existent monitor on display port"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97857#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - card detects non-existent monitor on display port"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97857">bug 97857</a>
from <span class="vcard"><a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> <span class="fn">Alex Deucher</span></a>
</span></b>
<pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=97857#c8">comment #8</a>)
<span class="quote">> (In reply to Daniel from <a href="show_bug.cgi?id=97857#c7">comment #7</a>)
> > But I did, in my description: "Since kernel 4.5.0-2 my Xorg.0.log shows that
> > something is also connected to display port...".
> >
> > Up to 4.5.0-1 everything was fine.
>
> Oops, sorry, I somehow missed that before. :(
>
> I think the most likely culprit is
>
> <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/</a>
> ?id=ff0bd441bdfbfa09d05fdba9829a0401a46635c1
> </span >
I doubt this is the culprit. The link training parameters aren't used until a
monitor is already detected. This wouldn't result in a fake monitor showing
up.
<span class="quote">> then, or maybe
>
> <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/</a>
> ?id=1a738347df2ee4977459a8776fe2c62196bdcb1b</span >
That is a possibility.
<span class="quote">>
> Can you try if reverting either of those fixes the problem?
>
> Alex, any ideas?</span >
Maybe some core drm/dp change? Any chance you could bisect?</pre>
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