[SOLVED] 144Hz not an option in display settings

[Beavhar]

I have a R9 380 connected to a LG 27GN950-B which is a 4k 144hz monitor connected via display port. No matter what I do I cannot seem to get 144hz as an option in display settings. I run my PS5 via HDMI and I manage 144Hz. It manages 4k just fine but even when I switch to 1080 I get no option for any Hz greater than 60. I have checked the drivers and software and all seem to be up to date in Radeon Software. In Radeon Software I have tried to set up a custom resolution but when I select 144Hz I just get a message saying the monitor does not support this. Any idea what’s going on?

 

[rgd1101]

https://www.lg.com/us/support/product/lg-27GN950-B.AUS
is in the manual spec. and the dp on the rx 380 is probably 1.2

 

[Beavhar]

https://www.lg.com/us/support/product/lg-27GN950-B.AUS
is in the manual spec. and the dp on the rx 380 is probably 1.2

It is but 1.2 should manage 144 at 1080p?

 

[rgd1101]

look at the lg manual

 

[Udyr]

It is but 1.2 should manage 144 at 1080p?

DP 1.2 was discussed in another post. Short answer: yes.

Display port 1.2 144hz?

I want to buy a 144hz monitor (XB270HU) 2560x1440 IPS and i was thinking which port to use HDMI or display port 1.2 in the internet i found article about that DP can only run 60hz but Has higer resolution on the other hand HDMI can run 144hz but only at 1080p so what should i do? Maybe i can use...

forums.tomshardware.com

 

[Udyr]

I have a R9 380 connected to a LG 27GN950-B which is a 4k 144hz monitor connected via display port. No matter what I do I cannot seem to get 144hz as an option in display settings. I run my PS5 via HDMI and I manage 144Hz. It manages 4k just fine but even when I switch to 1080 I get no option for any Hz greater than 60. I have checked the drivers and software and all seem to be up to date in Radeon Software. In Radeon Software I have tried to set up a custom resolution but when I select 144Hz I just get a message saying the monitor does not support this. Any idea what’s going on?

Did you check the monitor's menu directly? (pressing the physical button on it)

Taken from the manual:
"3840 x 2160 resolution is not available. (144 Hzor Higher)•Is it connected to the correct input?-If it is connected with HDMI input, set it to DisplayPort input.-Go to [Settings] > [General] > [DisplayPort Version] and set the option to [1.4(DSC)].-Go to [Settings] > [Game Adjust] > [Overclock] and set the option to [On]. (For 160 Hz)•Check if the graphic card supports the DSC (Display Stream Compression).•Check if the graphics card driver has been updated to the latest version."

 

[Glenwing]

The monitor does not have a 1080p 144 Hz programmed into it, according to the manual. You will need to set a custom resolution. Please refer to section 6.3 in the pinned thread: https://forums.tomshardware.com/threads/how-to-connect-to-a-120-hz-display.3268285/