AMD Releases Adrenalin 22.6.1 Legacy Software for Older GPUs

[Mussels]

basically that's what I said DP to DP should give you 2160p 60Hz whereas DP to HDMI probably not

if you have DP on the GPU and Monitor then use it instead of HDMI or DP to HDMI

But Asrock said he'd already tried it so

the only other thing I'd suggest is try the pro drivers on the R9 390 from here https://drivers.amd.com/drivers/prographics/win10-radeon-pro-software-enterprise-21.q1.2.exe

some adaptors dont work on all hardware, and HDMI ports on TV's arent all equal

Mine only has 2 ports that do full bandwidth, and theres a software toggle to enable it - when it's turned on, my older GPU's give out a special green and purple image instead of "just working" at 4k60hz (4:2:0 or 4:4:4 instead of RGB, i honestly don't recall which)

 

[Athlonite]

some adaptors dont work on all hardware, and HDMI ports on TV's arent all equal

Mine only has 2 ports that do full bandwidth, and theres a software toggle to enable it - when it's turned on, my older GPU's give out a special green and purple image instead of "just working" at 4k60hz (4:2:0 or 4:4:4 instead of RGB, i honestly don't recall which)

It's not a TV though it's an actual monitor but what I'm guessing is going on is that the HDMI on the monitor is only handshaking at 4K30Hz to the DP port on the GPU his monitor does have a DP port on it which should handshake to the GPU at 4K60Hz

GPU asks monitor hey so what can you do Monitor answers 4K30 because to it it's only connected VIA HDMI (the monitor doesn't know it's a DP port at the other end of the cable)

 

[Mussels]

It's not a TV though it's an actual monitor but what I'm guessing is going on is that the HDMI on the monitor is only handshaking at 4K30Hz to the DP port on the GPU his monitor does have a DP port on it which should handshake to the GPU at 4K60Hz

GPU asks monitor hey so what can you do Monitor answers 4K30 because to it it's only connected VIA HDMI (the monitor doesn't know it's a DP port at the other end of the cable)

The definition between TV's and monitors is small these days
Both my 32" screens in front of me have one HDMI 2.0 port and one HDMI 1.4 - no way in hell could i run my 4K 72Hz off that HDMI 1.4 port

DP to HDMI cables just add more chances for a lack of bandwidth since both the DP and HDMI ports need to be fast enough to handle the negotiated resolutions

 

[mirh]

the big question is, does this driver support Vulkan 1.3?

Nope, if anybody was still wondering.
It only gives you 1.2.170.. as somebody noted on reddit, the driver could as well just be named 21.5.1 (people there and elsewhere also recommended NimeZ, but idk).