Go Back   nV News Forums > Linux Support Forums > NVIDIA Linux

Newegg Daily Deals

Reply
 
Thread Tools
Old 06-25-07, 05:37 PM   #1
westis
Registered User
 
Join Date: Jun 2007
Posts: 7
Default Bad picture quality on TV-out with nVidia GeForce 7200 GS

Hi,

I have installed an nVidia GeForce 7200 GS on a machine with Ubuntu Feisty. Installed the drivers with Envy.

I have connected to a TV through S-video and unfortunately with an adapter to composite and then to RCA, which is the connection to the TV (actually to the switch sending the vide & audio to the broadcasting central).

But those adapters work fine from an mpeg-2 card on the same computer, which gives excellent picture quality.

Because the issue here is that the picture quality on the TV is not at all pleasing. It's not sharp and even a bit jittery with much movement in the picture, like rolling titles. The picture is not even covering the entire width, but there are black borders to the left and right of the picture (PAL).

What can it be, as I do get picture and it is colour... ?

Here's the relevant part of the xorg.conf file:

Code:
Section "Monitor"
    Identifier     "Monitor[0]"
    HorizSync       31.5 - 82.0
    VertRefresh     50.0 - 90.0
EndSection

Section "Device"
    Identifier "Device[0]"
    Driver "nvidia"
    Option "TwinView"
    Option "SecondMonitorHorizSync"   	"30-50"
    Option "SecondMonitorVertRefresh" 	"60"
    Option "TwinViewOrientation"      	"Clone"
    Option "MetaModes" "1280x1024,1280,1024; 1024x768,1024x768; 800x600,800x600"
    #Option "MetaModes" "800x600,800x600"
    #Option "MetaModes" "800x600,720x576"
    Option "TVOutFormat" "SVIDEO"
    #Option "TVOutFormat" "COMPOSITE"
    Option "TVStandard" "PAL-B"
    Option "ConnectedMonitor" "CRT,TV"
    BusID  "PCI:1:0:0"
EndSection

Section "Screen"
    Identifier     "Screen[0]"
    Device         "Device[0]"
    Monitor        "Monitor[0]"
    DefaultDepth    24
    SubSection     "Display"
        Viewport    0 0
        Depth       8
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       16
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       24
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection
Would be very grateful for any assistance as this is for a local public access TV station that very much would like to use Linux as the base for a broadcasting system! Tried an ATI card first, but heard nVidia is better with TV-out. Please help me to prove that right.

/Daniel
westis is offline   Reply With Quote
Old 06-26-07, 01:17 AM   #2
Galactic
Registered User
 
Join Date: Feb 2006
Posts: 5
Default Re: Bad picture quality on TV-out with nVidia GeForce 7200 GS

Well, as someone would surely tell you to do, read http://www.nvnews.net/vbulletin/showthread.php?t=46678 and especially part 3a.

One thing I see is that the primary mode is 1280x1024. I'd think it's a too high resolution. Maybe you should try 720x576? I once had a problem like the one you described and setting a lower resolution helped.
(Note that I'm not an expert, so I could be completely wrong.)
Galactic is offline   Reply With Quote
Old 06-26-07, 04:51 PM   #3
westis
Registered User
 
Join Date: Jun 2007
Posts: 7
Default Re: Bad picture quality on TV-out with nVidia GeForce 7200 GS

Thanks Galactic! 7520x576 doesn't work at all. It just gives a black screen on the TV. Other resolutions, low or high, give the same result.

Unfortunately I am not able to access the Ubuntu computer very often, so haven't yet been able to look at the log file.

What else can it be? Can the multiple converters make such a difference in picture sharpness and quality? And can there be a considerable difference between TV-out's on different nVidia cards?
westis is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


Similar Threads
Thread Thread Starter Forum Replies Last Post
Enhance Max Payne 3, Diablo III with GeForce R300 Drivers News Latest Tech And Game Headlines 0 05-22-12 06:30 PM
New GPU from Nvidia Announced Today, the GeForce GTX 670 News Latest Tech And Game Headlines 0 05-10-12 01:50 PM
Gainward Unleashes the Sexy GeForce GTX 670 Phantom Graphics Card, Also launches the News Latest Tech And Game Headlines 0 05-10-12 09:28 AM
NVIDIA Unleashes the GeForce GTX 670 Graphics Card ' Performance Perfected (WCCFTECH) News GeForce GTX 670 Reviews 0 05-10-12 08:40 AM
NVIDIA GeForce GTX 670 brings Kepler on a $399 budget (SlashGear) News GeForce GTX 670 Reviews 0 05-10-12 08:40 AM

All times are GMT -5. The time now is 08:36 AM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.