Arc B580 not scaling correctly to 1440p

[Rumzeiss]

I have the problem from the subject with Intel Arc B580 connected to 4K UHD TV. When I play PC games and want to lower the resolution to 1440p from native, I receive a windowed instead of full screen. The same happens and when just changing the desktop resolution of  Win11. There is no problem with 1080p or 2160p (native). Doesn't matter if scaling mode is changed in Intel graphics software from Display to GPU. 

[MUC]

Yes, I can confirm this observation.

[RandyT_Intel]

Hi @Rumzeiss,

I confirm my initial findings regarding the reported scaling issue. Based on the Extended Display Identification Data (EDID) provided, the observed behavior is consistent with limitations inherent to the connected TV display. This conclusion aligns with previous replications of the issue during my investigation.

Given these findings, I recommend consulting the TV or monitor manufacturer for further assistance, as the issue appears to originate from the display hardware’s capabilities rather than the system, drivers or software configuration.

Best regards,  

Randy T.  

Intel Customer Support Technician