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Simple Screen Offset Question
http://forum.linhes.org/viewtopic.php?f=6&t=8494		 Page 1 of 1
Author:  Slackem [ Tue Feb 14, 2006 9:59 am ]
Post subject:  Simple Screen Offset Question
Hi i have a simple question. I am in the process of finishing up my tweak script for my current setup (which is dangerously close to tier 1 :lol: ). On TV out I'm sure everyone knows that the screen is clipped around the edges a little.

Are these screen offset values different from TV to TV or are they different for each video card. I plan on making an identical box to the one i have and would like an easy way to change these values within the script.

Where and what config are these values located?

thanks all,
kC
Author:  tjc [ Tue Feb 14, 2006 7:45 pm ]
Post subject: 
If you're using nvidia-settings to make these tweaks you can go directly to the the configuration file that it writes - /home/mythtv/.nvidia-settings-rc editing this with a little sed command would be trivial. However the overscan settings are very much a case by case tuning thing.
Code:
sed -e '/TVOverScan/s/\(.*\/TVOverScan\[.*\]\).*/\1=20/' \
 </home/mythtv/.nvidia-settings-rc >/home/mythtv/.nvidia-settings-rc.new
mv /home/mythtv/.nvidia-settings-rc /home/mythtv/.nvidia-settings-rc.old
mv /home/mythtv/.nvidia-settings-rc.new /home/mythtv/.nvidia-settings-rc
chown mythtv:mythtv /home/mythtv/.nvidia-settings-rc*
Author:  Slackem [ Wed Feb 15, 2006 2:46 pm ]
Post subject:  Almost there......
TJC really you are the man. Helped me out more times than u prolly know. What exactly is over scan? I hear that term alot and the online glossary didnt really help me at all.

thanks again,
KC
Author:  tjc [ Wed Feb 15, 2006 11:52 pm ]
Post subject:  Re: Almost there......
Slackem wrote:
What exactly is over scan? I hear that term alot and the online glossary didnt really help me at all.

Your TV typically only displays the center 80% or so of the official broadcast size because the edges look like crap, a computer monitor on the other hand displays 0,0 through maxX,maxY, the overscan parameter is to let you make those two conflicting worlds play nice together.
Author:  thornsoft [ Thu Feb 16, 2006 11:08 am ]
Post subject: 
While we're at it.... (overscan)
I have tweaked my mythfrontend to size/center the screen.
But it doesn't carry over to X programs on the FluxBox desktop. Is there any way to get that environment to behave? I've downloaded lots of games, and some of them are sizeable, but lots of them seem to go full-screen or full-height, and don't have sizer bars. Enough gets chopped off, that they're unplayable.

I HAVE found that you can "train" most "regularly-windowed" apps like FireFox, to remember their size/position by right-clicking on the titlebar, then there's a menu with options for remembering size/position. That's cool, when it's available.
Author:  tjc [ Thu Feb 16, 2006 8:57 pm ]
Post subject: 
At the risk of skidding off into a seperate topic which deserves it's own thread, I would guess that you've got a virtual screen size that's bigger than your actual screen size. See the "CheckingLogFiles" page on the wiki for how to view your X log and make sure that the virtual screen size isn't bigger than the mode it's using.
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