Intel Arc A770 & TV Problems

[DiSans]

Multimedia and gaming pc: Connected Intel Arc A770 LE to my TV via HDMI 2.1 port but facing multiple issues.

Running latest driver.

1. Stuck on 1080p 60hz because any resolution above this setting makes the GPU run at 40w, at 1080p 60 it is about 24w at idle. I have ASPM enabled the mobo is a asus B760-I with i5 13400. TV is a TCL C845 with native resolution of 3840x2160. Intel states low power mode at 4k@60 for 1 display but does not seem to work.

2. Windows 11 reports only 8 bit color mode in advanced display, the TV supports 12 bit, and I have not figured out how to manually change color mode on this GPU. Windows HDR mode is turned on.

3. Colors look terrible watching Netflix, looking for color tune guides. The brightness also looks lower than usual compared to built-in android tv. Maybe the 8-bit color mode?

I have tried older drivers, changing HDMI ports on TV and different cables, but getting nowhere.

[DiSans]

Bump... no reply Intel Support ?

[Andres_Intel]

Hello DiSans,

Thank you for posting on the Intel communities. I see that you are having resolution issue with your TLC TV and your Intel® Arc™ A770 Graphics (16GB), I understand how annoying this can be I will be happy to help you.  

Please to keep this thread organize, open one thread per issue, once thread for the Netflix issue and one for the 8-Bit issue.

To have a better understanding of the situation, please answer the following questions:

• Did it work at 3840x2160 60Hz before?
• Download, run, save and attach the report for the following tools: 
  • Report for Intel® Graphics Drivers, find the installation steps on How to Install the Intel® Graphics Command Center From the Microsoft Store.. To check the resolutions supported by your system.
  • Intel® System Support Utility for Windows (SSU), you can find the steps on the link How to get the Intel® System Support Utility Logs on Windows. To check if there is a pending update

Regards,  

Andres P. 

Intel Customer Support Technician 

[Andres_Intel]

Hello DiSans,

Were you able to run the Report for Intel® Graphics Drivers and the Intel® SSU?   

Let us know if you still need assistance.    

Best regards,   

Andres P.   

Intel Customer Support Technician 

[Andres_Intel]

Hello DiSans, 

We have not received any response from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.  

Best regards, 

Andres P.   

Intel Customer Support Technician