[Linux] HOW-TO setup XBMC and Linux with correct resolution (xorg.conf) - Printable Version
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- rodercot - 2010-01-06 21:36
WOW! Guys, I have to say, I just glanced through this whole thread and I cannot believe the troubles. I would assume this not to be a how-to but a guide. If you click on the original authors post from the ubuntu forums and READ the whole thread you will learn how to do it all properly. Including fixing overscan and underscan, why certain modes are used and why not. Why you need to use modevalidation "no edid modes" and more.
I have been using the original ubuntu post for a long time but I still revert to it and read it completely at least a couple times or more before proceeding to create a custom setup, new install or xorg file. I did my dad's 1080i rca with that post it is CRT-3 gun and it has been running perfect pixel 1920x1080i for a while with zero overscan or underscan at the right refresh and proper scan rates as well as my 1366x768 (Max 1280x720) no name tv, my LG 32" 1080p and my Sharp 52" now the sharp and the LG both have 1:1 pixel mapping which makes all this stuff a whole lot easier but I spent likely a day on the No name tv getting it right.
It takes some effort to get xorg properly setup and working correctly - blindly throwing settings in and out of your xorg.conf will only work a few times and you WILL end up with BLACK SCREEN on your TV - FOREVER.
my 2 cents.
- gokudo - 2010-01-06 22:14
Sorry, i see it the complete other way round, obviously nobody has been able to comprehensively explain this in a user friendly way so there wouldn't be so much open debate going on. Are you expecting ppl to do a weeks research for this or else go screw themselves? Quite an elitist point of view.
- Screwdriver - 2010-01-06 22:45
Honestly i do believe this CAN be a simple process, and i agree rodercot that blindly throwing settings into xorg.conf can be trouble, and i do agree with you gokudo as well that it is not documented in a totally n00b friendly way. However, i don't think anyone EXPECTS anyone to do it either way. Unfortunately this is one of the problems that is not optional to fix.... what i mean is that its not like scraping info from mdb or tv.com, this is the display, the whole thing working relys on having the display work properly. and since everyone has different hardware it isn't gonna be plug and play. in fact i'd be suprised if in this whole comunity 2 people had the exact same setup.... but that doesn't change things. Setting rosolution in linux has never been straight forward for me, i don't think even once i had it "work out fo the box" i've used Linux off and on for about 6 years but mostly for a server. SO i don't think arguing or calling people lazy is gonna get anyone anywhere.
My Setup works perfectly fine on the 19inch lcd that i originally set it up on (probably because it uses a standard 1280x1024 res) but my uncommon widescreen res is causing me problems. Does anyone have any ideas where to go for more information? Untill now i've only used gentoo. which i thought would be the same but is clearly not quite.
- AddictedToMetal - 2010-01-06 23:02
deadite66 Wrote:i've given up getting 1360x768 on my pc.
Try mine. I was in the same boat as you. I JUST got this working. I had the top/bottom/sides going just out of the screen. Now I get 1280x720 and SPDIF all working on a minimal Karmic install. Joy
Note that I actually shoulda had this working years ago if I just fiddled with my modeline more. I believe it was simply editing the two bolded numbers (they were like 8 digits lower) that finally did it for me.
Also a little tip. Running nvidia-settings to adjust colors and create a .nvidia-settings-rc was a big help with the picture afterward.
- rodercot - 2010-01-06 23:05
My post was not meant to be directed at anyone, I think that the initial post #1 should have included the whole ubuntu thread including the testing and setups portion which tells you how to tweak the modelines to compensate for under and over scan.
RTFM is completely up to the individual and some people can read for hours and some for less. I hate reading myself and I am no linux xpert by any means. I just know that googling to find the xact issue I am trying to fix in linux is usually NOT going to happen unless you are lucky and i am usually not.
I have just been reading thread after thread lately where it seems that people do not want to do the req'd labour to get the overall end result. I think how-to's are awesome and they help people immensly I know i have used several and posted several as well, both here and on the mythbuntu site. I still get pm'd over my hdmi audio success thread and that is a year or more old as well I am sure Olympia still gets pm'd over his GREAT how to on setting up what I think was the best xbmcbuntu how-to ever written.
I guess there is a real simple solution, we can use M$ and be told this is how it is; like it or not or use open-source product which was created by people whom I regard as thinking outside the box and actually makes us 'think' to use it.
ok that has to be 4 cents; what with inflation and all
It's all good.
- Screwdriver - 2010-01-06 23:15
I hope i can ask a simple question here....
If i have my video output set to 1024x768 and set the overscan/underscan to fill the screen, and then set the pixel ratio to 1.25....
The video files, pictures, DVD's and whatever will not look stretched.... is this true?
The Reason i ask is i have got it set that way and everything looks okay, it just means that i am missing some horizontal lines of resolution right?
- idlehands - 2010-01-07 19:23
rodercot Wrote:It takes some effort to get xorg properly setup and working correctly - blindly throwing settings in and out of your xorg.conf will only work a few times and you WILL end up with BLACK SCREEN on your TV - FOREVER.
I've read this whole thread, and quite a bit of the other thread, and a ton of information all over, and this is still quite greek to me.
I have noticed that since i'm going hdmi-> receiver->hdmi->tv that the edids getting passed around are different than when i do hdmi->tv. Pretty sure if i end up with a totally screwy setting the receiver will come back with unsupported tv mode and just not do it.
so yah, not too worried about twiddling; clearly this isn't the simplest thing to setup.
- deniax - 2010-01-09 03:41
Never mind, I figured it out
When you've set up multiple resolutions in the xorg , but they don't appear in the resolutions menu in systems/video output in XBMC , is that correct, or should they appear there?
I'm pretty sure everything is set up correct in the xorg, but somehow, I can not select the resolutions I made:
- splobber - 2010-01-10 22:40
I'm a n00b to XBMC and have been trying to set up a Revo 3610 with XBMC Live. It's (mostly) working fine, but I can't get a 1080p signal. I've tried all sorts of different configurations in my xorg.conf as well as the suggestions in this thread but a lot of them result in be being asked for a username or password when XBMC boots up or I get a black screen.
I tried running the instructions for all the EDID stuff, but am getting messages like this under many of the results:
I have the Revo hooked up to a Sony AV amp via HDMI which then passes through the signal to the screen. This resulted in the same error as above so I tried wiring it straight to the TV but this didn't make a difference.
I have a 50" Panasonic plasma (TH-50PZ70) that supports 1920x1080 at 50 and 60hz and in theory can handle 24fps as well as it complies with the pulldown specs for this.
Can anyone help at all? I know nothing about Ubuntu at all apart from what I have learned from reading this forum and other sources on the internet, although the last few days have been a very steep learning curve for me!
- idlehands - 2010-01-11 16:13
I think I sorted out picking the correct modes. I was about to really dig in and work on fixing overscan with the modline, however I noticed that i could fix overscan in xbmc 9.11 with the video calibration screen.
Is there some benefit to fixing overscan with those options vs manually brute forcing it with the modelines?
Since my television manual only lists 1080i @60hz and 720p@60hz as supported having settings to handle 720p and 1080p@60, 50 and 24 don't seem like something I have to bother swizzling with.