I have an end user whose eyes are sensitive to screen flicker and requires a setup with a refresh rate higher than 60 Hz, set to 75 Hz.
I have an HP Compaq Pro 6300 with an NVidia GeForce 210 graphics card and HP LE2202x monitor. I'm running Windows 7 64 bit. The monitor settings won't allow me the option to raise the refresh rate higher than 60 Hz, even though the technical specifications for my hardware allow me to configure it at a much higher rate. I'm using a single monitor setup running the latest video drivers. I'm plugged into the monitor using an analog (VGA) cable and the screen resolution is set to 1280 x 800. I understand that typically the lower resolutions allow for higher refresh rates. Lowering it doesn't seem to give me options higher than 60 Hz.
Now that I've provided the technical details, any ideas why I'm unable to set the refresh rate higher than 60 Hz?
Best Answer
In the contrast to old CRT display, new LCD displays work different. They do not flicker as a CRT display. The common refresh rate for LCD displays is 60 Hz, although I've seen LCD displays with higher refresh rates like 70 Hz. Even sensitive user won't need any higher refresh rate on a LCD display.
Please look into the datasheet of the monitor HP LE2202x. It's "native resolution" and also the supported resolutions are given for 60 Hz. Therefore the driver won't let you overclock the frequency.