Graphics
Intel® graphics drivers and software, compatibility, troubleshooting, performance, and optimization
21496 Discussions

Dual screens randomly twitch to black for 2-5 seconds

RickF
Beginner
588 Views

I have dual screens. They each randomly twitch to black for 1-5 seconds.  Not at the same time

0 Kudos
11 Replies
MUC
Valued Contributor III
561 Views

To make an assessment possible, please provide the make and model of your computer, the make and model of your monitors, and the manufacturer and type (USB-C/DisplayPort/HDMI) of cables you are using.

 

 

0 Kudos
RickF
Beginner
524 Views

Dell Optiplex 7010
Processor 13th Gen Intel(R) Core(TM) i7-13700 2.10 GHz
Installed RAM 32.0 GB (31.7 GB usable)
System type 64-bit operating system, x64-based processor

Edition Windows 11 Pro
Version 23H2
Installed on ‎12/‎19/‎2023
OS build 22631.4460
Experience Windows Feature Experience Pack 1000.22700.1047.0

Monitors - 2xSamsung LF27T450F

Cables - DP to HDMI

0 Kudos
MUC
Valued Contributor III
503 Views

Samsung F27T45
1920 x 1080 @ 75 Hz
2 x HDMI 1.4, 1 x DisplayPort 1.2


If your Dell PC has two DisplayPort outputs, I would recommend connecting the two monitors with a DisplayPort cable each to have a straight connection. And please then set up the monitors in the On Screen Display menu as follows:

 

MUC_1-1731608609322.png

 

0 Kudos
RickF
Beginner
495 Views

I believe that's how I have it setup.  I have two DPs. Each monitor is connected with a DP to HDMI cable.  If that's not the same, can you break it down simpler for me? 

0 Kudos
MUC
Valued Contributor III
381 Views

Please use cables that have a DisplayPort connector on both ends.

 

MUC_1-1731626257042.png

 

RickF
Beginner
320 Views

OK. I will try that. Thank you for the diagram.

0 Kudos
n_scott_pearson
Super User
485 Views

Have you verified that the firmware for the DP-to-HDMI cables is the latest? If it's not, I would be updating it as this would be the usual cause of HDMI connection loss issues (which is what you are seeing).

[Aside: I don't recommend purchasing DP-to-HDMI cables that do not have the ability to have their firmware updated.]

Hope this helps,

...S

0 Kudos
RickF
Beginner
482 Views

I never heard of cables with firmware.  I have to assume mine do not.

0 Kudos
n_scott_pearson
Super User
470 Views

Every one of these cables has a processor that is performing the protocol conversion from DisplayPort to HDMI and most of these implement this protocol conversion using embedded firmware. It is a question of whether or not a particular cable has a method for updating this firmware and is making firmware upgrades available as issues are identified.

...S

0 Kudos
RickF
Beginner
433 Views

Understood.  These are from a company called UNI.  From amazon. How would I know/confirm that the firmware could be updated?

0 Kudos
n_scott_pearson
Super User
431 Views

I went to their site (https://uniaccessories.com/) to check, but didn't see any support for firmware download/upgrade. You could try contacting their tech. support and see if they have any guidance for this.

...S

0 Kudos
Reply