modeline problem, can't see the whole picture

deadite66 · 11-04-2009, 12:17 AM

using karmic with a pci nvidia 6200 and a 26" Panasonic lcd tv.
tried using 173 and 185 drivers, connection is via vga.
i want 1360x768 i know the tv can do it as i've previously had this res on an old version of ubuntu pre hardy.

the problem is i can get 1360x768 but can't adjust it so i can see the full screen the tv controls are maxed out and xvidtune refuses to work "unable to query monitor info" error.

if anyone has any idea's i'd be happy.

last xorg.conf and modelines i've tried.

Code:

Section "Screen"
	Identifier	"Default Screen"
	DefaultDepth	24
	Subsection "Display"
                Depth       24
		Modes "1360x768"
        EndSubsection

EndSection

Section "Module"
	Load	"glx"
EndSection

Section "Device"
	Identifier	"Default Device"
	Driver		"nvidia"
	Option		"NoLogo"		"True"
        Option          "AddARGBGLXVisuals"     "True"
        Option          "UseEDID"               "False"
        Option          "NoDDC"                 "on"
        Option          "IgnoreEDID"            "on"
        Option          "RenderAccel"           "on"
        Option          "Coolbits"              "1"
        Option          "ModeValidation" "NoEdidModes, NoMaxPClkCheck, NoVertRefreshCheck, NoHorizSyncCheck, NoEdidMaxPClkCheck, NoDFPNativeResolutionCheck" 
EndSection

Section "Monitor"
	Identifier "Generic Monitor"
	Option "DPMS"
#	Modeline "1360x768"   84.75   1360 1432 1568 1776   768 771 781 798  -hsync +vsync
#	Modeline "1360x768"   84.75   1360 1424 1560 1776   768 771 781 798  -hsync +vsync
#	Modeline "1360x768"   84.75   1360 1416 1552 1776   768 771 781 798  -hsync +vsync
#	Modeline "1360x768"   84.75   1360 1408 1544 1776   768 771 781 798  -hsync +vsync
#	Modeline "1360x768"   84.75   1360 1400 1536 1776   768 771 781 798  -hsync +vsync
#	Modeline "1360x768"   84.75   1360 1384 1520 1776   768 771 781 798  -hsync +vsync
	Modeline "1360x768"   84.75   1360 1360 1496 1776   768 771 781 798  -hsync +vsync
EndSection

tredegar · 11-08-2009, 05:50 AM

Maybe you can use this modeline calculator ?

deadite66 · 11-08-2009, 05:57 AM

thanks but i've used that and others i think something in xorg or nvidia driver has changed, what ever i've tried the screen refuses to change in anyway.
i've given up and ordered an acer revo so hopefully hdmi will work ok.

johnsfine · 11-08-2009, 08:24 AM

Quote:

Originally Posted by deadite66

can't adjust it so i can see the full screen

My first guess for those symptoms is that the frequency (dot clock) is too high, but you don't seem to be adjusting that.

Also, you should look in /var/log/Xorg.0.log and try to figure out what modeline is actually being used. It doesn't help to adjust a modeline if some other one is being used. I find it quite difficult to predict how X and its drivers will react to various content in xorg.conf. There's always some extra rule I didn't know or forgot to consider. If you look at the results both on screen (what actually happens) and in the .log file, then you can be guided by the results of whatever you try.

H_TeXMeX_H · 11-08-2009, 09:35 AM

I have a similar issue, but the closest I've gotten is by hacking the EDID for it. And, well I couldn't do that properly either, so it still doesn't work. Either way, if there's a solution I want to know it too. BTW, does anyone know of a good (I mean good) EDID editor for Linux ?

deadite66 · 11-08-2009, 10:06 AM

i just have a feeling in making linux easier they've taken away the flexibility, you can see how much protection i had to turn off just to get the modeline working at all.
they expect an edid now and your stuffed if your monitor doesn't support it.