[SOLVED] 144Hz not an option in display settings

Apr 19, 2021
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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?

 

Udyr

Prominent
Mar 3, 2021
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It is but 1.2 should manage 144 at 1080p?
DP 1.2 was discussed in another post. Short answer: yes.
 

Udyr

Prominent
Mar 3, 2021
172
51
690
14
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."
 

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