HDTV Settings, I got my overscan problem fixed.

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jaredn79
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HDTV Settings, I got my overscan problem fixed.

Post by jaredn79 »

Gentoox now displays perfectly on my 52" RCA Widescreen HDTV, thank God. So I figured I would share my experience. I will post pictures to this thread tonight when I get home from work.

Thanks to all the forum postings, various web pages, etc, I was able to put the pieces of the puzzle together. One guy's web page that I came across had the correct settings for X Windows to display correctly on an HDTV with 480p.

I will be tweaking the settings to see about 540p or 1080i (my TV doesnt support 720p) - IMO the desktop resolution of 640 x 480 is ridiculously small.

Here is how I did it:

1. DO this from a PuTTY/Terminal/SSH session as root (If X/KDE/XFCE is running the screen will be garbled after this - It is normal and ok):
fbset -g 640 440 640 440 32 -t 37000 100 54 45 33 64 7

2. Then run (this will give you needed parameters for X Windows):
fbset -x

---------------------------
THIS SHOULD APPEAR
---------------------------
Xbox # fbset -x

Mode "640x440"
# D: 27.027 MHz, H: 31.500 kHz, V: 60.000 Hz
DotClock 27.028
HTimings 640 694 758 858
VTimings 440 473 480 525
Flags "-HSync" "-VSync" # Warning: XFree86 doesn't support accel


EndMode
----------------------------

4. Edit "etc/X11/XF86Config-4" (pico XF86Config-4) find "Modeline 'xbox' "

5. Change the settings to what you got from fbset -x
Example:

Modeline "xbox" 27.027 640 694 758 858 440 473 480 525 -HSync -VSync

Exit and save XF86Config-4

6. X windows will still be garbled, You can restart X by pressing CTRL+ALT+BACKSPACE, it should be purdy now.

-Jared
I am a n00b to Linux, but learning quickly. Please dont flame me.
msnyder
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Post by msnyder »

You are the man. I'll be trying this out when I get home... If it work I will call you Daddy!
jaredn79
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Post by jaredn79 »

Cool let me know if you have any luck. Im gonna try getting 540p to work this evening. Where in Texas are you msnyder?
------------------------------------------------------
Jared

I am a total n00b to linux, please dont flame me ;o)
-------------------------------------------------------
msnyder
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Post by msnyder »

jaredn79 wrote:Cool let me know if you have any luck. Im gonna try getting 540p to work this evening. Where in Texas are you msnyder?
You mean 720p...


I'm in Tyler...about two hours from you.
jaredn79
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Post by jaredn79 »

Nope, 540p - I dont think my TV supports 720p
------------------------------------------------------
Jared

I am a total n00b to linux, please dont flame me ;o)
-------------------------------------------------------
msnyder
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Post by msnyder »

Never heard of 540p

480i
480p
720p
1080i
jaredn79
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Post by jaredn79 »

These are the HDTV resolutions used, depending on the TV/Projector

480p
540p
720p
960i
1080i
1440i


I dont know of any others
------------------------------------------------------
Jared

I am a total n00b to linux, please dont flame me ;o)
-------------------------------------------------------
jaredn79
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Post by jaredn79 »

And some LCOS displays support 1080p
------------------------------------------------------
Jared

I am a total n00b to linux, please dont flame me ;o)
-------------------------------------------------------
msnyder
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Post by msnyder »

Wow, didn't realize there were so many...


You work for TI in Dallas?
jaredn79
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Post by jaredn79 »

No, I work for a software development company in Arlington.

Here is an image as promised.

Image
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Jared

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ShALLaX
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Post by ShALLaX »

I wouldnt call that "fixed" so much.. look at the black bar on the left :o
The original Xbox adaptation of Gentoo
msnyder
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Post by msnyder »

WOW!!! Looks sweet! Now if I can only get the color to show, instead of black and white.
msnyder
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Post by msnyder »

BTW, I have no black bar on either side...
msnyder
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Post by msnyder »

Any idea how to make the display color?
jaredn79
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Post by jaredn79 »

It's more "fixed" than having overscan. :lol:

No color?!?! Hmm, thats very strange. I dont know what would cause that. What version of XBOX do you have, do you have a focus chip? What TV do you have?
------------------------------------------------------
Jared

I am a total n00b to linux, please dont flame me ;o)
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