Thanks for joining the NUC community.
Does this issue happen if you try an earlier BIOS version?
You may try File name: WY0028.BIO
Download the file and place on USB thumb drive, once booting, start pressing F7.
Also, I recommend checking cables, please try using different Display Port cable.
When running downgrade procedure of Bios as suggested i got an error from Bios gui: 0x80000000000000000000015, 1579.
I then followed the upgrade of bios removing jumper, following this easy step by step procedure:
Desktop Boards — Instructions for Recovery BIOS Update
This succesfully downgrades bios.
However it does not solve the problem of loosing monitor signal after some time after installation of windows 8 OS.
There is no warning, it suddenly looses the signal, and the monitor goes into sleep mode. It wakes up only if booting to bios.
The monitor i have is Asus MX299Q - WIndows 8 finds this monitor immediately after installation and image is displayed with correct resoloution.
I have been adviced to try two options:
- deactivate display driver and run on low res. until windows 8.1 upgrade. Answer: This is no obvious way for me to test this out as there is no dedicated driver to deactivate for the display port (?).
- try connecting with mini hdmi - hdmi cable.
Any advices of how to go about with the problem except the two options mentioned here?
Thanks for the information.
If you deactivate the driver it will disable driver features and will work just as removing the driver from Control Panel.
I am using same NUC model with a high quality mini-HDMI to HDMI cable as below:
I tried using mini hdmi - hdmi display soloution and that gave a positive result.
I could then run complete driver and upgrade to up to date win 8.1 x64.
Now i am also able to use the original display port cable i initially tried using and it works flawless.
How i ended up in such a problem taking me several hours and frustration would be something for Intel to deal with if it wants to reach the broader less IT technical skilled consumers.
It was nothing wrong with the display cabel, nor the ASUS display itself, so i narrow down the error to a NUC problem with the D54250WYKH.
If i had a win 8.1 install insted of the upgrade from 8.0 this may have worked flawless.
I have to withdraw my answer that it works with the DP - mini DP cabel from Deltaco.
The display port is even now shutting down the monitor signal unexpectedly and also when i boot windows 8.1 the signal is lost immediately, don`t even show any windows load graphics. Monitor goes to sleep mode informing: "no signal".
I am beginning to thinks that it could be a problem with the cabel i use:
mini hdmi - hdmi cabel works and NUC works fine.
So, is this cabel not supportet by Intel NUC D54250WYKH is my questions. Perhaps there could be an intel diagnostic tool i could use to perhaps find out what the problem is.
I do not have reports of same cable not working on this unit. I have the following: Amazon.com: StarTech.com 6 ft Mini DisplayPort to DisplayPort 1.2 Adapter Cable M/M - DisplayPort 4k with HBR2 support -…