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Composite vs HDMI

Posted: Mon May 06, 2013 4:32 am
by Sheegoth
Hi. I recently purchased a cheap LCD that attaches to my Pi via its GPIO pins. It's an incredibly small LCD, but it works well. The only issue is that it's through GPIO, so there was a lot of driver issues to go through to enable it to display the console and x11 interfaces. Unfortunately, I haven't managed to enable other key programs to display to its framebuffer, so it's pretty much useless to me now.

Anyway, I'm here because I'm looking into getting a composite or HDMI LCD to attach to my Pi, seeing as how GPIO has issues, and the fact that there isn't an official LCD for the Pi as of late. In your experiences, is there a great enough difference between composite and HDMI that it'd be worth spending the extra cash on an HDMI LCD for my Pi? Do you know where I could find a 3.5" or smaller LCD in the form of composite or HDMI for my Pi?

Re: Composite vs HDMI

Posted: Mon May 06, 2013 1:38 pm
by klricks
Get the HDMI.
Here is the RPi screen on a 7" screen from my web site:
http://64.13.91.137:86/Comp/RPi/RPiComposit.html

I had to increase the default font size to get readable text.

Re: Composite vs HDMI

Posted: Mon May 06, 2013 2:33 pm
by Sheegoth
Thanks for the reply, klricks. Unfortunately, 7" is far too large for what I am aiming for. I'm trying to make my own miniature gaming system of sorts, and would prefer a 3.5" or less screen. Any ideas where I could find one of those? I haven't had much luck as of yet. Also, isn't the Foundation supposed to release an official LCD in the near future?

Edit
Is it possible to attach a GBA screen (such as this one) to the RPi?

Re: Composite vs HDMI

Posted: Mon May 06, 2013 5:33 pm
by toxibunny
At that size, composite is your best bet, and no - gba screen won't work.

Re: Composite vs HDMI

Posted: Mon May 06, 2013 8:17 pm
by Sheegoth
Yeah, I thought as much. Thanks for the input, toxibunny. I may purchase this one soon enough. I'd use it to display 320x240 "games" (self-made projects) on it. Do you think that'd look fine in composite?

Re: Composite vs HDMI

Posted: Wed May 08, 2013 4:17 am
by klricks
The smaller screens might be OK for arcade type games as long as they don't have allot of text. I can barely read text on the 7" screen.

Re: Composite vs HDMI

Posted: Sat May 11, 2013 3:56 pm
by ryanwhite
just used compostie

i wouldn't recommend it hdmi is your better bet
composite is very grainy and hard to read unless of course thats just my setup ;)

Re: Composite vs HDMI

Posted: Sat May 11, 2013 4:01 pm
by Jim JKla
I have a TV set up to use composite and HDMI and a second model "A" with the option of pushing it's output onto the scart socket (I tend to use it headless)

HDMI is the best and should be what you are going for you should only be using composite if you have no other choice the difference in quality is huge.

There's also the HDMI - DVI option but HDMI is by far the best. ;)