On Fri, Feb 19, 2010 at 6:39 PM, Alex Deucher <[email protected]> wrote: > On Fri, Feb 19, 2010 at 6:23 PM, Sebastian Beßler > <[email protected]> wrote: >>> On Fri, Feb 19, 2010 at 5:01 PM, Sebastian Beßler >>> <[email protected]> wrote: >>>>> On Fri, Feb 19, 2010 at 2:37 PM, Sebastian Beßler >>>>> Some TV's enable overscan by default. Turn off overscan on your tv. >>>>> The >>>> option might be called "fit" or "exact" or something like that. The >>>> other alternative is to underscan the modeline sent to your >>>>> monitor. Google for "underscan modeline" >>>> >>>> I can't disable overscan in my TV. >>>> I can switch a few modes but non of them help because the modes which >>>> change something only steal more but no mode gives. >>>> >>>> Underscan doesn't seem to help too. I tried down to 1064x504 in steps of >>>> 8 >>>> (from 1280x720) and my TV always seems to compensate. >>>> >>>> What I don't understand is, that all just worked with fglrx drivers and >>>> zaphod mode. No overscan at all. That looks like a driver issue to me. >>> >>> fglrx adjusts the modeline for underscan the same way. >> >> Then maybe I am just too stupid to get something right that fglrx had >> magically done without any configuration from my side. >> >> Sorry, it is late here and I run out off ideas and endurance for today. > > You need to adjust the display area of the mode relative to the total. > For example: > Modeline "1280x720" 74.50 1280 1344 1472 1664 720 > 723 728 748 -hsync +vsync > Modeline "1280x720underscan" 74.50 1170 1344 1472 1664 660 723 728 > 748 -hsync +vsync > > Note that the total values are constant: 1650 -> 1650, 748 -> 748, > while the display values have been reduced: 1280 -> 1170, 720 -> 660. >
1664 -> 1664 > Try one of those modes, or adjust your own based on the 1280x720 > timing from your tv. xrandr --verbose will print the full modeline. > > here are some others I found on the web: > ModeLine "1176x664a" 74.250 1176 1390 1430 1650 664 725 730 750 +hsync +vsync > ModeLine "1176x664b" 74.250 1176 1338 1378 1650 664 697 702 750 +hsync +vsync > ModeLine "1200x670" 74.250 1200 1208 1248 1980 670 700 705 750 +hsync +vsync > > Alex > _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
