NUC7i5BNH HDMI firmware update causes screen to go black

[NRand1]

I successfully updated the HDMI firmware to version 1.77 (https://downloadcenter.intel.com/download/29162/HDMI-Firmware-Update-Tool-for-NUC7i3BN-NUC7i5BN-NUC7i7BN?product=95067) but now the screen goes blank / black for several seconds, every couple of minutes or so.

I updated the Video Drivers (Iris 640) to the latest version but the problem persists.

I rolled back the firmware version to 1.72 but the frequency of black screen outages increased so I updated to 1.77 again - still the same problem. The black screens are so frequent now that the machine is almost unusable now.

I am connected to an LG OLED 55" 4K via an HDMI 2.0 cable, running Windows 10 Home (version 18363).

If anyone has any ideas or suggestions I would be very grateful for any help.

[LeonWaksman]

1. Try to check with other hi speed HDMI cable.
2. Try to connect to PC monitor (with HD resolution instead of 4K) and see what happens.
3. This is the latest Intel DCH Graphics Driver: https://downloadcenter.intel.com/download/29195/Intel-Graphics-Windows-10-DCH-Drivers . Before installing this driver follow those steps:
4. Disconnect the internet. Open Device Manager. Uninstall currently installed Graphics Driver (check the "Delete..." option). Reboot your NUC.
5. Install the previously downloaded DCH driver.
6. Reconnect the internet and reboot your NUC.

Leon

[NRand1]

Thanks Leon, I shall give your suggestions a whirl and post an update.

I may jump to step 3 first since there's less unplugging and plugging involved and steps 1 and 2 would surprise me if they resolved the issue (but hey, I am willing to give them a go).

Cheers again,

Nick

[NRand1]

Oh well... the removal and re-installation of the driver didn't resolve the issue and the problem persists with both a monitor and different HDMI cable.

*sigh* I also realised I hadn't activated System Restore either... so I think it's going to be a fresh rebuild... which, although it is a pain, isn't the end of the world.

Thanks again, Leon.

Cheers,

Nick

[LeonWaksman]

Hi Nick,

System Restore/fresh rebuild is a quite drastic solution. I would try first two other solution: Repairing Windows with an in-place upgrade and Clean Boot.

Repair Install Windows 10 with an In-place Upgrade

1. Download Microsoft Media Creation Tool https://go.microsoft.com/fwlink/?LinkId=691209 and follow this tutorial https://www.tenforums.com/tutorials/16397-repair-install-windows-10-place-upgrade.html
2. Your Windows will be replaced without losing anything from your data or installed programs.

Clean Boot

1. How to perform Clean Boot https://www.tenforums.com/tutorials/41804-perform-clean-boot-windows-10-troubleshoot-software-conflicts.html
2. This will help you to troubleshoot software conflicts.

Regards

Leon

[NRand1]

Hi Leon,

Thank you for your suggestions.

I admire your persistence... and if you are happy to provide possible solutions then I am happy to implement them :)

I will do as you say and get back to you.

One additional symptom I noted is that if the screen has any type of animation then the black-outs increase in frequency.

Static screens devoid of any movement are mostly stable but the moment you try scrolling or navigating through the screen then black-outs occur.

Strangely though, watching a Youtube video in "default screen" mode provides almost non-stop black-outs but the moment I go "full screen" the black-outs decrease significantly.

Cheers,

Nick

[LeonWaksman]

Hi Nick,

1. I've suggested you to repair your Windows using an in place upgrade , since this procedure, replaces your Windows with a new updated installation, leaving your data. You intended to install your Windows from scratch, while the upgrade is easier to do.
2. In order to have more information about your installation, please download Intel System Support Utility (SSU): https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows- . Next please run the SSU System Scan. Save the results and using the "paper clip", attach the file with the results to your post.

Leon

[NRand1]

Great news Leon,

The in-place upgrade process you suggested fixed the problem - well done that man! :)

Watched the tutorial, downloaded the media creation tool, followed the wizard and hey presto - problem gone.

Yes, you're right - the upgrade process was less traumatic than a total rebuild.

Thanks so much.

Cheers,

Nick

[LeonWaksman]

Hi Nick,

Great news indeed. I'm very glad. I would like to add that it is also important to have Bios updated. If your Bios is not updated yet, the latest Bios version 0080 you can download here: https://downloadcenter.intel.com/download/28990/BIOS-Update-BNKBL357-86A-?product=95067 . Download BNKBL357.86A.0080.EB.msi Self-extracting Windows-based update file. Double click on it, and the update will start.

Regards

Leon

[NRand1]

Thanks again Leon. I check the NUC page at least once a month for any relevant updates or new drivers. Agree, BIOS is always something to keep updated.

Cheers,

Nick​