[Bug 91791] [SKL-U] System hang when plug in a VGA monitor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91791

--- Comment #39 from webdevelopersdiary <jagermeistermeister at gmail.com> ---
Hi Gary,

I was reading into Skylake support for MST and stumbled into this bug report.
The issue you are describing with the blank screen is something I have heard
before during my search, I posted all the info I could find here:

http://unix.stackexchange.com/questions/247722/intel-skylake-displayport-1-2-mst-daisy-chain-on-linux

It contains links to 2 different situations:
- one nvidia user reported that his second screen stayed blank (power saving
mode). After his screen saver switched on and he used the computer *both*
screens came on and the issue was gone until next reboot.
- an AMD Radeon user mentioned both his screens went into power saving mode
*after* logging in, while these were working before the login.

And now I read about your screen also going in power saving mode, so I am just
wondering if these situations all have something in common.

Perhaps you could try the work-around in this link to see if that solves the
blank screen problem:

http://ubuntuforums.org/showthread.php?t=2301503

HTH

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