View Full Version : 120hz monitor displays only 60hzin control panel

12-26-2013, 11:33 AM
Hello all, mods please move this if it is in the wrong section...

I just got a new TV for Xmas and am wondering about the difference between refresh rates. I have a geforce gtx 680 with HDMI, dvi single, and dvi dual... I just got a new TV that has HDMI only. It is a Philips 32pfl5708/f7.

The TV claims it is 120hz but when connected my nvidia control panel does not list 120hz as a valid refresh rate. I attempted to force it in the custom resolutions menu but the TV instantly displayed "unsupported mode". I want 1920x1080@120hz.

Am I misunderstanding the difference between refresh rate and display rate? Do I need a HDMI 1.4 cord? (I'm using 1.3).

My TV:


12-26-2013, 09:07 PM
It might claim to be 120hz, but looking at the supported display resolutions, only 60hz is mentioned.

Supported Display Resolution

Computer formats: 640 x 480, 60Hz, 720 x 480, 60Hz, 800 x 600, 60Hz, 1024 x 768, 60Hz, 1280 x 768, 60Hz, 1280 x 1024, 60Hz, 1360 x 768, 60Hz, 1400 x 1050, 60Hz, 1440 x 900, 60 Hz, 1680 x 1050, 60Hz, 1920 x 1080, 60Hz Video formats: 480i, 60Hz, 480p, 60Hz, 720p, 60Hz, 1080i, 60Hz, 1080p, 24, 25, 30, 50, 60Hz

12-27-2013, 02:29 AM
If you'll notice, it says it uses 120Hz Perfect Motion Rate, which it seems is a version of interlacing. Your TV seems to not be able to do a true 120Hz input, unfortunately.

Sorry I did not reply earlier; philips' mobile site would not take me to the TV page.