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saifsalih
Fanfold Paper
Posts: 3
Registered: ‎09-21-2015
Location: UK
Views: 861
Message 1 of 2

Thinkpad Yoga S1 CD20 mini HDMI output not working

My mini HDMI output has stopped working. No video no sound on the external screen. I've updated everything- Windows, Intel Graphics drivers, all the critical updates on the Lenovo companion app but still no luck. The computer doesn't even seem to recognise that the output is connected (the little sound that plays when the cable is plugged in doesn't play). I have tested the cable and monitor on another lenovo device and all works fine. 

 

Frustratingly the output seems to work when connected via the Thinkpad Dock. 

 

Also of note: the advanced display settings no longer takes me to the desktop verison of the application. Even if I go through the control panel, but takes me to the basic windows 10 interface,

 

Anybody have any ideas- I really need to be able to project from my computer

saifsalih
Fanfold Paper
Posts: 3
Registered: ‎09-21-2015
Location: UK
Views: 820
Message 2 of 2

Re: Thinkpad Yoga S1 CD20 mini HDMI output not working

Ok some more investigating- it isn't a hardware fault. The mini HDMI output works when the onelink dock adapter is put in (I know it isn't the output via the Onelink dock because there is no monitor connected to it!)

 

However if the onelink dock isn't plugged in then the mini HDMI output doesn't work.

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