OS and Hardware, which reason screen blackout issue?

[NEKOmaru]

I have a screen blackout and freeze problem. and I'm avoiding it with HDMI selector device.

I often see the same issues in this community. it happening on Windows and Linux. (it's not NUC, but mac mini 2018 have same issue too.)

is it need OS's measures?

or Intel side? (HDMI firmware, BIOS, CPU...)

I'm not tell this issue to Microsoft. but is it require?

[LeonWaksman]

Usully it is caused by poor quality video cable or by video HUB. Try to use other video cable and/or connect your monitor directlu, rather than trough hub.

Leon

[NEKOmaru]

Hi Leon,

thank you for your reply.

It didn't work with HDMI direct connection. rather, I inserted an HDMI switching device as the counterplan.

even so, it is strange that the OS freezes. It may be an initial H/W trouble. I'll check a HDMI cable later.

[Abigail_G_Intel]

Hello NEKOmaru,

Thank you for posting on the Intel communities.

I would like to confirm that Apple* has explicitly requested all support inquiries or issues be addressed directly to them. You should be able to contact Apple* Support staff here: https://support.apple.com/.

Best Regards, 

Abigail G 

Intel Customer Support Technician

Under Contract to Intel Corporation. 

[NEKOmaru]

I update the information,

by Intel support, I changed my NUC8i5 to new one. then some trouble is fixed. it seems that it was initial hardware failure.

(before)

x2 SO-DIMM is not work. OS was freeze.

OS freeze when HDMI blackout. I could't use Sleep the display.

sometimes it happened PC shutdown fault. windows was hangup.

(after)

two 16MB SO-DIMM is running well.

OS freeze is not happening now. (I'm confirming)

sometimes HDMI blackout is happening when windows Log-off. but it's not freeze. (so I typed the user password in the dark to login, then woke up the HDMI)

very thanks for this forum and Intel support😁

[Abigail_G_Intel]

Hello NEKOmaru,

I am glad to know that the issue was resolved.

Thank you for sharing the steps that helped you to resolve the issue, this might be helpful to other community members.

Best Regards, 

Abigail G 

Intel Customer Support Technician

Under Contract to Intel Corporation.