[Bug 83600] [HSW] HDMI monitor does not work via active DisplayPort adapter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83600

--- Comment #4 from Chris Cheney <chris.cheney at gmail.com> ---
I just thought to try forcing the non-working DP->HDMI connection to a lower
resolution with xrandr and it worked. Then setting it back to native resolution
worked as well. Not sure wtf is going on...

Steps to reproduce:

Run the following:
--
1. xrandr                                - if screen is already working it
stops
2. xrandr --output DP1 --mode 1920x1080  - native will not work at this point
3. xrandr --output DP1 --mode 1024x768   - lower resolution works fine
4. xrandr --output DP1 --mode 1920x1080  - now native works fine, wtf?
--

This appears to repeatable ad nauseam. :-\

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