VT1350 and VT1500 tricks don't work at 120hz.

[tamtam404]

Hi,

I'm surprised nobody has noticed this, but the VT1350 and VT1500 tricks don't work on the xl2411z. There is not ouf of frequency range error, but if you guys go to your monitor info using the menu you'll notice you have been forced down to 60hz!! 1300ish is as high as it will go for me while staying at 120hz.

[Falkentyne]

It works. As long as you are using the ToastyX pixel clock patcher, it's working.
If you are not using internet explorer, you can clearly see the crosstalk band range lowered considerably on the alien invasion testufo fullscreen test.

The monitor reports 60 hz because when it is being run out of specification (high vertical total), it uses the 60 hz backlight voltage signals instead of the 120hz ones. This could potentially lower the LED backlight lifespan since at, lets say, 5 ms persistence, you're using 120hz at voltages that were actually meant for 60 hz refresh rate. For safety. might want to avoid a too high persistence setting (like >2.5ms) when using VT Tweaks.

[masterotaku]

A good way to test this is comparing brightness to 100Hz. At 100Hz, the pixel clock patcher isn't necessary. If you get more brightness at 120Hz, you're good. If not, you need to patch the pixel clock.

[tamtam404]

I get way more brightness at VT1350 (or VT1500) than VT1300 for identical persistence settings. I thought the trick didn't work because the screen is much brighter. Actually, the screen get so bright that it appears to cause more ghosting than at VT1300.

Would it be better to keep VT1300, or use the VT1500 trick and lower the persistence until I get brightness similar to what I get without the trick? Would this give any advantage somehow?