Fixed: Dual GSYNC monitors, one stuck at 60Hz. PG279QR, and MG248Q

onastyinc · September 11, 2019

I just got a PG279QR(full GYSNC) to go with my MG248Q(FreeSync) I was running the MG248Q with an older Dell 24 inch 60Hz monitor, and the MG248Q did GSYNC fine at 144Hz. Now with the PG279QR as the primary, the MG248 won't go past 60Hz. The old Dell monitor was limited to 60Hz, so I didn't expect anything else.

Video card is a GTX 1080 and both monitors are connected via DP cables.

If i disable the PG279QR I can set the MG248 to 144Hz, otherwise I have 60/59/50Hz as the only options.

I don't really need the MG248Q at 144Hz since I won't be gaming on it, but shouldn't both monitors be able to run at 144Hz at the same time?

onastyinc · September 11, 2019

Figured it out. The Nvidia control panel defaults to Ultra HD, HD, SD section of resolutions which limit you to 60/59/50Hz

if you scroll down in the window past all the super low resolutions you get to the PC section which has another 1920x1080 that DOES have a 144Hz option.

Not sure why they would default to that limited setting, but it was an easy enough fix.