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rany
Paper Tape
Posts: 4
Registered: ‎10-19-2014
Location: Egypt
Views: 6,648
Message 1 of 8

Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

I have an issue appeared after upgrading Windows from 8.1 to 10.

I have Lenovo Z50-70 (Intel display adapter and NVidia GeForce 840M).

Issue is having no rsponse when connecting External Display using HDMI this issue came out after upgrading to Windows 10 and not exist when connecting using VGA .

So, any solution for such an issue.

Administrator
Administrator
Posts: 5,520
Registered: ‎04-19-2012
Location: SK
Views: 6,635
Message 2 of 8

Re: Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

Hi rany,

 

Welcome to the community,

 

have you tried updating graphics drivers?

 

 

 



Miguel 
Community Service Readiness, Spanish, Smart Device & Gaming Community Leader


 



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rany
Paper Tape
Posts: 4
Registered: ‎10-19-2014
Location: Egypt
Views: 6,628
Message 3 of 8

Re: Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

Hi Miguel,
I have the latest lenovo drivers and I already disabled the auto update of drivers.
My drivers version are the same as what you have sent.
So what do you think.
tripplec
Bit Torrent
Posts: 2,379
Registered: ‎03-08-2012
Location: CA
Views: 6,620
Message 4 of 8

Re: Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

You probably need to do some sort of cold reboot. Win 10 boots from cached archive for speed and it may not be right. Try doing a RESTART at shutdown as it takes longer to come up I am guessing it reloads everything. 

 

Otherwise is a driver issue.

T520 Model 4239 Intel(R) Core(TM) i7-2860QMbr>; Nvidia NVS 4200M Win 10 64bit
Z70-80 I7 - 5500U 16GB GB - 1TB HD Win 10 64bit FHD 17.3", G840 w/2GB

Eternalrest
Fanfold Paper
Posts: 9
Registered: ‎10-07-2015
Location: UK
Views: 6,739
Message 5 of 8

Re: Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

Is your cable high speed? If not, can you check connecting it through a high speed hdmi cable to see if it works?

rany
Paper Tape
Posts: 4
Registered: ‎10-19-2014
Location: Egypt
Views: 6,563
Message 6 of 8

Re: Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

Thanks this really helped as it worked like charm 

Eternalrest
Fanfold Paper
Posts: 9
Registered: ‎10-07-2015
Location: UK
Views: 6,560
Message 7 of 8

Re: Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

i'm glad i could help Smiley Happy. i had the same problem and it was soo frustrating =p

tripplec
Bit Torrent
Posts: 2,379
Registered: ‎03-08-2012
Location: CA
Views: 6,554
Message 8 of 8

Re: Lenovo Z50-70 HDMI not working when connecting External Display after upgrade to Windows 10

All cables should be 1.4 by now or better. There was the odd 1.3 especially in very long lengths of 25 -50ft but everything I have seen for years are 1.4 at least. I know in my z70 you have to push in that extra 1/8" for it to mate otherewise nothing happens. I was puzzled for a while until I realized that.

T520 Model 4239 Intel(R) Core(TM) i7-2860QMbr>; Nvidia NVS 4200M Win 10 64bit
Z70-80 I7 - 5500U 16GB GB - 1TB HD Win 10 64bit FHD 17.3", G840 w/2GB

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