Reply To: Tips & Tweaks: Lx3, Lx4, Lx5 modes

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I have a question about Lx5 mode. My display is a Samsung UN46C6300. At first I could only get line double mode to work but I was able to get Lx3 and Lx4 working by using the timing tweak suggestions from this forum. What I cant seem to get working is Lx5. I was wondering if anyone had any suggestions based on the information (taken from the manual) provided below:

Resolution: 1920 x 1080 @ 60 Hz
Horizontal frequency (Khz): 67.500
Vertical frequency (Hz): 60.00
Pixel clock frequency (MHz): 148.500
Sync Polarity: + / +

All of my testing was with an RGB amp modified snes mini over hdretrovision component cables. Also, on lx3 my TV does not display the resolution but it does on lx4, not sure why. Both lx3 and lx4 are windowed within a black frame all the way around. I have not been able to get it to take up all of the window vertically. Any suggestions are greatly appreciated.