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Old 22nd Jun 2020, 10:56 pm   #41
Semir_DE
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Join Date: Jan 2019
Location: Heusenstamm, (Near Frankfurt am Main), Germany.
Posts: 49
Default Re: My 819 line French TV project

Dear all,

Here are the mode lines I have currently in my ".profile" file on my Mint Linux system.

one more I am planning to test is a version for 441 lines.

This is all running very nicely on a fan-less Nvidia N710 PCI Express 16 graphics card.

xrandr --newmode "819" 29.3203 1152 1168 1240 1432 738 744 745 819 -hsync +vsync interlace
xrandr --addmode VGA-1 819

xrandr --newmode "405" 8.10 664 680 752 800 377 378 385 405 -hsync +vsync interlace
xrandr --addmode VGA-1 405

xrandr --newmode "PAL" 13.875 720 741 806 888 576 581 586 625 interlace -hsync +vsync
xrandr --addmode VGA-1 PAL

xrandr --newmode "PAL-SQP" 14.750 768 790 859 944 576 581 586 625 interlace -hsync +vsync
xrandr --addmode VGA-1 PAL-SQP

xrandr --newmode "NTSC" 13.846 720 744 809 880 480 488 494 525 interlace -hsync +vsync
xrandr --addmode VGA-1 NTSC

Please take note that this configuration uses a positive vsync and a negative hsync. This is owed to the fact that I am using a single XOR gate to generate a somewhat compliant vertical sync with h-serrations. If you intend to use the simple resistor adder network for generating the composite signal please change the "+vsync" in each modeline to "-vsync"

you can find the .profile file I'm using in the attached zip file.

Cheers

Semir
Attached Files
File Type: zip profile_look_for_it_in_home_folder.zip (757 Bytes, 16 views)
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