Hello to the KDE community,

So here is my setup : a dual monitor configuration with a 1680x1050 @ 120 hz monitor as primary display, and a 1440x900 @ 60 hz monitor as secondary display. The resolutions and refresh rate are alright when I'm on the KDE desktop, but in some games (not all games), the refresh rate of the 120 hz monitor switches to 60 hz, which is not really annoying, but when I quit the game, the refresh rate on the desktop stays at 60 hz and I have to change it back to 120 hz myself.

I'm using the AMD proprietary driver with a Radeon HD 7750 on Kubuntu. I looked in the Catalyst Control Center but couldn't find a way to force the 120 hz refresh rate on the desktop. Is there a way to force it in KDE ? I'm not even sure this is a KDE issue, probably more an X.org issue, but I would appreciate a little help though.

for KDE the krandrtray app in the system tray, left or right mouse button to open (Note diff screens but pretty much same functionality)

for command line look at the xrandr command

better question might be is there a way to stop the drop in the refresh rate

Thank you for your answer. You seem to give me a way to change the refresh rate back to 120 hz after it dropped, right (via Krandrtray or xrandr) ? Thanks but I knew how to do that already ; I need a way to make it switch back automatically (make it force the game to play at 120 hz would be the perfect solution, but I guess it is not possible). Or maybe I misinterprated your answer ?

no I misinterpreted your question

why not create a batch file to call the game(s) and when it exits call xrandr to up the refresh rate
or in the batch file and call xrandr after the game starts (the diff would be the game command would be followed by a "&" to start in background)

Actually I do that already for a few games. But it's kind of annoying to do it for all games, and I'm not sure I can do that for the ones that I launch from Steam. I was hoping for a cleaner solution, but thanks anyway for your time.

you could create and run a background process that tests refresh rate and ups it if it falls below then sleeps and tests again

you might want to add a test to determine highest refresh rate in case monitors switch

That's a good idea, actually I don't think I have the capacity to do that... I'm kind of noobish.