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Old 01-18-04, 11:15 PM   #1
diwakergupta
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Default no colors on tv-out

Hi everyone,

I'm running 2.6.1 on a Dell Inspiron 8600. I have an NVidia GeForce4 4200 Go on this machine. The card works perfectly fine for the laptop, no problem at all. It has an SVIDEO outport, and so I thought I might give it a try.

After some attempts I was able to get it working. Unfortunately though, I'm getting no colors I've read similar posts on the group, but no solution seemed available. Here are the relevant lines from my XF86Config:

Section "Monitor"
Identifier "TVMonitor"
HorizSync 45 - 65
VertRefresh 55 - 80
VendorName "Toshiba"
EndSection
Section "Screen"
Identifier "TVScreen"
Device "TVCard"
Monitor "TVMonitor"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1200x1024" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1200x1024" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1200x1024" "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Section "Device"
Identifier "TVCard"
Driver "nvidia"
VendorName "NVidia"
BoardName "NVidia GeForce 4"
VideoRam 65536
Option "NoLogo" "true"
Option "CursorShadow" "false"
Option "TVStandard" "NTSC-M"
Option "TVOutFormat" "COMPOSITE"
Option "ConnectedMonitor" "TV"
EndSection

This is for a TV only display, I'm not running TwinView. Any help will be really appreciated. Thanks!
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Old 01-19-04, 01:30 AM   #2
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We were getting black, white and grey on the TV until the TV's default input type was switched from NTSC to PAL.
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Old 01-19-04, 01:33 AM   #3
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So I don't need to make any changes to the options in XF86Config? Just change the input type in the TV? Or shud I try playing with the TVOutFormat instead?
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Old 01-19-04, 09:34 AM   #4
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Try TVOutFormat, check the README for settings for your area.
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Old 01-19-04, 09:43 AM   #5
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I did try it out. I'm in the US, so I'm using NTSC-M. Though to be sure, I tried all the formats one by one. But I still can't get color anywhere
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Old 01-19-04, 11:11 AM   #6
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Did you try changing TvOutFormat from COMPOSITE to SVIDEO?
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Old 01-19-04, 12:54 PM   #7
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No, I haven't. But thats because I'm taking the output from the Composite Video pin (the yellow one) and not the SVIDEO jack. I have a Toshiba model 27in, not very new, so it doesn't have an SVIDEO in socket. But I'll give it a shot anyways.
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Old 01-19-04, 01:15 PM   #8
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<sigh> Just tried setting the output to SVIDEO. As expected, that didn't work. I was expecting that losing colors would have been a standard problem that many had faced. But doesn't seem like it
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Old 01-19-04, 07:45 PM   #9
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Yip, it was a setting on the TV (using its remote.)
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Old 01-26-04, 10:16 PM   #10
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I have the same problem. Unfortunately my TV only has 2 options in the menu, CATV and TV.

Is there another way or am I stuck?
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Old 02-24-04, 06:08 PM   #11
sehh
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Just so you know, the cable could be the problem.

Some SVIDEO/RCA/Composite to SCART converters or cables will
not transfer colors and the picture will be b&w.

Also, some small 14"/15" cheap tv's will also have this problem.

I haven't found a solution for the cheap tv's but the cable
can be solved by getting a good quality one which will
transfer color output.

For example, my TV it a normal Grunding, and if i use my
SVIDEO cable, it can see color output, but when i use my
composite/RCA cable, i can only see b&w.

I also have an SVIDEO to SCART converter which has
this problem. Another one that i have does not.
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Old 02-24-04, 06:09 PM   #12
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Oh, and as someone already mentioned, make sure you select PAL or NTSC approprietly.
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