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vga to rca tv out issues

asked 2014-10-02 12:44:35 -0600

ddeneen gravatar image

updated 2014-10-02 12:46:53 -0600

I am attempting to display fedora 19 installed on a hp paviliona735w on a old fashion 36" tube tv. I purchased an adapter than goes from vga to s-video and rca WYR, but nothing displays with rca. The tv does have s-video ability. Is there a reason or preference to use that method? Do i need additional drivers? Is there something that needs changed in setting?

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answered 2014-10-02 16:32:30 -0600

FeRDNYC gravatar image

If the adapter converts VGA video to S-Video and Composite video (yellow RCA plug), then either it outputs video on both simultaneously, or there is some method for output-switching built into the adapter itself. Fedora, and even your Pavilion, can and should know nothing about this adapter, and will just treat it as if it's a VGA monitor. There are no drivers or settings necessary or even possible on the Fedora side, to configure such an adapter.

Assuming there's any output on your computer's VGA port at all (temporarily connecting an actual VGA monitor, as a test, can be helpful in confirming this if necessary), then any settings/adjustments will have to take place on either the adapter or the TV.

I'd suggest going through the installation procedure specified by the adapter again, step by step, to ensure there isn't something you missed. Make sure to perform all steps in order and when indicated, because display autodetection can work against you in situations like the one you're attempting to set up.

If your adapter isn't signaling to the computer "Hey, I'm a VGA monitor!", then the graphics controller will typically soft-disable the output until something it detects as a display screen gets connected to the VGA port. The adapter's instruction manual, or manufacturer's user support forums, would be the best resource for information on the proper way to connect everything up so that it's detected properly.

On the Fedora side, you can use xrandr -q to view the current status of the various display ports, but here again autodetection should take care of enabling/disabling outputs automatically, so it shouldn't be necessary to change any settings there. And it definitely isn't possible to control anything involving the adapter and its outputs from within Fedora.

(Regarding S-Video, the general consensus is that the picture over an S-Video connection will be superior — cleaner, sharper, less noisy, more correct colors, etc — compared to what you'll see using Composite video, so the recommendation is nearly always "If you have the option of using it, you should." A video-related site like AVS forum, the Hauppauge UK forums (quite informative even if you're not using their hardware), or even the appropriate sections of Tom's Hardware would be the place to learn more about issues of analog video connections and signaling.)

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change resolution 800*x600 in Fedora...

davidva gravatar imagedavidva ( 2014-10-05 02:25:39 -0600 )edit

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Asked: 2014-10-02 12:44:35 -0600

Seen: 159 times

Last updated: Oct 02 '14