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Paper Tape
Posts: 3
Registered: ‎12-01-2016
Location: DE
Views: 123
Message 1 of 1

Lenovo Yoga 900 - External screen stays black after standby



this is my second Yoga, bought in August 2017, the problem started round about 1-2 month ago.


After awaking my notebook out of the standby the second screen sometimes stays black

plugging the USB-C Jack (Connected by displayport to the DELL Screen) in and out does not help.

The external DELL screen only says "there is no signal".

So far the only way to get it back is a full restart :-(

Regarding to google search that issue shows up an quite a variety of notebooks (manufactures and graphic units), lots of threads in  different forums, but nothing that solved my problem.


Trying following work around another problem shows up:

Now I did changes in the energy management to stop the machine going into standby that fast. But the machine ignores my setting:

* Shut down the Screen after 1 hours when connected to power

* Go into Standy after 4 hours when connected to power

This setting is saved, but the machine goes into standby much quicker?!


Hopefully someone can help here - Cheers Dennis


P.S. I also changed tried it with a new cable, same problem.

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