intel Arc a770 16 gb displayport problem 3 monitors

[lorvar]

Hello, as a new owner of an ARC A770, I too am experiencing an issue with more than 2 monitors.

After 2 days and a half of messing with drivers, cables, settings and various monitors, the only solution is to add the 3rd monitor to the motherboard port. This is clearly a driver issue. I find it strange that a new 4 port card is offered without testing multiple monitors. So for now, I have to run 1 HDMI HP, 1 DP Asus to the card and my third Asus  to the Z790 DP port. Absolutely no other way, I just returned my 3060 for this card only to find this issue. Very disappointing.

[Hugo_Intel]

Hello lorvar

thank you for posting on the Intel Communities. I am sorry you are experiencing issues when connecting multiple monitors to your Intel® Arc™ A770 GPU.

Please share with us the following information to assist with this issue:

• Are you using any type of video adapter to connect the monitors?
• Does the issue always happen with a particular monitor or does it happen with any of the three?
• Create a log file with the Intel® System Support Utility and attach it. 
• Create a System report following these instructions. Only use the instructions under Intel Graphics Command Center (Intel GCC).

Best Regards,

Hugo O.

Intel Customer Support Technician.

[lorvar]

Hello Hugo. To answer your questions

1. Are you using any type of video adapter to connect the monitors? No
2. Does the issue always happen with a particular monitor or does it happen with any of the three? Seems like the one ASUS 24
3. Create a log file with the Intel® System Support Utility and attach it. Done
4. Create a System report following these instructions. Only use the instructions under Intel Graphics Command Center (Intel GCC). Done

Configuration

HP - HDMI

ASUS27 - DP

ASUS24 - DP

When I hot plug in the 2 ASUS on DP ports and the HP on the HDMI port, only the HDMI displays

When I plug in the HP and the ASUS27 in (no ASUS24), reboot, they work.

When I plug in the HP, ASUS27 and ASUS24 into the card, reboot, the ASUS24 does not show up

When I plug in the HP, ASUS27 on the card and use the motherboard DP port for the ASUS24, reboot, they all work.

When the monitors don't show up, the display settings shows 3 monitors, but the ones that don't turn on, show up deactivated. Toggling the "Extend" does nothing.

Hope that helps.

[lorvar]

Ok update. I was looking for some solutions online thinking it was the version of Displayport that was causing a conflict and came across this video. The monitor I have is almost the same as this one.

DisplayPort No Signal EASY Fix

https://www.youtube.com/watch?v=cBmi8XGwVtM

This has so far, (knock on wood), fixed the issue. You have to turn off the monitor, unplug it for 30 sec (I did a minute) then I plugged in the DP cable into the card while the computer was off. Then I plugged in the power cable to the monitor. Then I pressed the power button on the monitor and turned on the computer. Everything showed up. I tried restarting, hibernation, sleep and powering off the computer completely. All restarted the 3 monitors in these scenarios. If anything changes, I'll update this post.

[Hugo_Intel]

Hello lorvar

Thank you for sharing the information with us as well as for sharing the workaround that you found. We would also like to continue researching this issue internally with our team, however, there are 2 troubleshooting steps that I would like you to try first:

• Uninstall the current driver using Display Driver Uninstaller. Once the driver has been uninstalled and while in safe mode reinstall the driver version 31.0.101.4369.
• Since the issue seems to generally happen on the Asus VA24DQ if possible, please try a different monitor and check if the same issue can be reproduced.

Best Regards,

Hugo O.

Intel Customer Support Technician.

[lorvar]

Hello, This driver is already installed and was reinstalled 4 times. It was only this 24 inch monitor. I tried 4 other monitors.

[Hugo_Intel]

Hello lorvar

Thank you for letting us know. We will continue checking this information with our team. I will post back once I have an update for you.

Best Regards,

Hugo O.

Intel Customer Support Technician

[JEMedia]

Hey lorvar,

I have the same problem with multiple screens on Display Port.

I delivered for almost 6 weeks informations to Hugo O. at INTEL

I think he is good in keeping the user busy but not very good in challenging the driver development team.

His conclusion was this it not a driver problem and he handed me over to another INTEL support function which is Catalin I.

She proposed to re-install my Win10 22H2 uptodate to overcome the problem - which is ridicolous to m  e.

Yesterday I experimented with the latest BETA driver and found another proof that it is a driver problem-which is:

1. Connect two screens on Display Port

2.Open INTEL Control Center - Display Function

3. In my case only one DP shows connected

4.Connect the HDMI cable and disconnect the HDDMI cable several times

5. After a while there may be 2 DP Screens shown in the INTEL Control Center  - Display function

    --> but yesterday the second DP screen stays black

   -->  today the second DP screen go on and out and has a flimmer on it

See attachment as proof that it is the driver - not the user

So you see that is the quality of INTEL support.

Regards

Joe E.

[lorvar]

Hello. My solution was to unplug the troubled monitor from the wall for a minute and plug it back in then it showed up and has been for almost 3 weeks now. It wasn't the card or drivers after all. I hope you can try to pull the power on the monitors. 

My steps

1. turn off the computer completely
2. unplug power from Asus 24 inch monitor that wouldn't show up (other 2 were working) for a minute.
3. plug monitor back into the wall
4. turn on the power for the monitors
5. start the computer

and everything shows up now.

[JEMedia]

Hi lorvar,

thanks for your description - but that hhas noo effect in my case.