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PC Graphics

rohanp16
Journeyman III
‎05-20-2018 11:51 PM

144 Hz monitor only running on 60 Hz (AMD HD 8490)

Hello everybody,

Recently we bought a ViewSonic XG 2530 gaming monitor in hopes of achieving higher frame rates for our experiments involving stimulus presentation but unfortunately I can't get a 144 Hz refresh rate.

Our desktop (Dell OptiPlex 9020 SFF) has a an AMD Radeon HD 8490 (along with a Intel HD 4600). The Windows 'Screen Resolution' is telling me that the monitor is at 144 Hz, but a test in our presentation software (PsychoPy) reports that a frame is refreshed every 16.7 ms, which is 60 Hz.

I am using DisplayPort cables, have the latest drivers installed (re-installed them as well), have switched Vertical Sync to 'Always Off', and made sure DisplayPort 1.1 is switched off - all of this to no avail.

Would really appreciate any thoughts and ideas!

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3 Replies
goodplay
MVP
‎05-21-2018 03:13 AM

What does 'List all modes' show of capabilities ?

My PC- Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, NM790 2TB, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T.
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rohanp16
In response to goodplay
Journeyman III
‎05-21-2018 03:56 AM

It has all the different modes with 144 Hz being the highest.

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rohanp16
Journeyman III
‎05-22-2018 08:42 PM

Switched to the AMD Radeon R5 240 and it works well. Still not sure why it didn't work previously.

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