Hi Spyros, TVs are sometimes very picky about what signals they get. Regular monitors aren't quite as picky. If you have an linux box, (ubuntu or a live-cd like knoppix) you may try to get information from your TV by running xrandr from a terminal or by using get-edid and piping that to parse-edid. (the ubuntu package is read-edid for get-edid and parse-edid) On my TV, hooking up to my linux box and running xrandr gives me: 800x600 (0x51) 40.000MHz +HSync +VSync h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz v: height 600 start 601 end 605 total 628 clock 60.32Hz 800x600 (0x52) 36.000MHz +HSync +VSync h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz v: height 600 start 601 end 603 total 625 clock 56.25Hz and for 1280x720 I can see: 1280x720 (0x4b) 74.250MHz +HSync +VSync h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz v: height 720 start 725 end 730 total 750 clock 60.00Hz 1280x720 (0x4d) 74.176MHz +HSync +VSync h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz v: height 720 start 725 end 730 total 750 clock 59.94Hz If you look at the numbers in your posted images: at 800x600: framesize = 1056 628 bordersize = 0 0 position = 40 1 syncsize = 128 4 those correspond to the numbers for this mode: 800x600 (0x51) 40.000MHz +HSync +VSync h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz v: height 600 start 601 end 605 total 628 clock 60.32Hz framesize is total position is start-width syncsize = end-start for 1280x720 you may try: 1280x720 (0x4d) 74.176MHz +HSync +VSync h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz v: height 720 start 725 end 730 total 750 clock 59.94Hz framesize = 1650 750 bordersize = 0 0 position = 110 5 syncsize = 40 5 Another thing you could try is cvt timings: reduced blank cvt -r 1280 720 # 1280x720 59.74 Hz (CVT 0.92M9-R) hsync: 44.27 kHz; pclk: 63.75 MHz Modeline "1280x720R" 63.75 1280 1328 1360 1440 720 723 728 741 +hsync -vsync cvt 1280 720 # 1280x720 59.86 Hz (CVT 0.92M9) hsync: 44.77 kHz; pclk: 74.50 MHz Modeline "1280x720_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync note these are 60hz, you can try 50 cvt 1280 720 50 # 1280x720 49.83 Hz (CVT 0.92M9) hsync: 37.07 kHz; pclk: 60.50 MHz Modeline "1280x720_50.00" 60.50 1280 1328 1456 1632 720 723 728 744 -hsync +vsync
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