Linux [SOLVED] XBMCbuntu - Impossible to change refresh rate?

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[SOLVED] XBMCbuntu - Impossible to change refresh rate? - Devaron - 2012-04-21 20:45

Hi all. I have a question about the possibility to change your refresh rate and/or resolution from within XBMC.

I have modified my xorg.conf a while back to include modelines. This to try to eliminate the judder i experienced on most of my movies. This worked (almost) perfectly. I could always switch between these different refresh rates in the settings menu. Also the option "Adjust display refresh rate to match video" worked perfect.

Since i updated to Eden this changed. I use the same xorg.conf file as before, but within XBMC the only refresh rate that i can select is "0.00". I can't change this, no matter what i do. Even if i completely remove the xorg.conf file and reboot, the only choice is "0.00", which according to my TV is 60 Hz.

Problem is that the movies now all play on the same refresh rate, this never changes no matter what the refresh rate of the video i play is. Also, the "Adjust display refresh rate to match video" doesn't work anymore. Result is that almost all videos i play stutter again...

Before i post a log or a copy of my xorg.conf i thought i'll ask if this is a known problem or maybe even intended. And if there is something i can do to fix this. Big Grin

Any and all help is appreciated. Thanks!

RE: [XBMCbuntu] Impossible to change refresh rate? - Sbrocket - 2012-04-23 02:00

I didn't update to Eden - mine was a fresh Eden install (new XBMC user) - but I see the same problem. The refresh rate in prefs only shows "0.00" and my receiver only ever gets a 1080p/60 signal over DVI/HDMI (adapter from video card to receiver). I have the "Adjust display refresh rate to match video" option on as well and, while the frames/second according to the debug display is synced to whatever the video is (24hz), the signal out never changes.

My install is not XBMCbuntu, though. I just installed the Eden version available now through the 12.04 Precise repositories since this was a pre-existing system.

RE: [XBMCbuntu] Impossible to change refresh rate? - Devaron - 2012-04-23 09:54

(2012-04-23 09:21)hfjfgd46 Wrote: -bump-

Thanks

(2012-04-23 02:00)Sbrocket Wrote: I didn't update to Eden - mine was a fresh Eden install (new XBMC user) - but I see the same problem. The refresh rate in prefs only shows "0.00" and my receiver only ever gets a 1080p/60 signal over DVI/HDMI (adapter from video card to receiver). I have the "Adjust display refresh rate to match video" option on as well and, while the frames/second according to the debug display is synced to whatever the video is (24hz), the signal out never changes.

My install is not XBMCbuntu, though. I just installed the Eden version available now through the 12.04 Precise repositories since this was a pre-existing system.

OK so it's nice to know i'm not the only one Wink

. What i find really weird is the fact that "0.00" is the ONLY refresh rate i can select. And if there is only one possible option to select, the setting should (if i'm not mistaken) be removed from the settings menu altogether.

In the mean time i've tried many different things, all without the desired result. It's really starting to bother me because most movies i play now have judder or ghosting. Maybe i will have to reinstall, but i'd prefer to find a solution. Not only because reinstalling is in my view averting the problem, but also because i just reinstalled everything around the time Eden came out. But it's no problem if i have to ofc. Wink

Any pro out there who can point us in the right direction?

I'll post my logs and xorg.conf later today. Gotta go to work first and make some money to improve my HTPC set... Laugh

RE: [XBMCbuntu] Impossible to change refresh rate? - Devaron - 2012-04-23 21:09

Hi all.

Here's the information and the logs i promised to post earlier today. This is the first time i do this, so i hope i post the correct stuff. If not, please let me know.

Platform: Linux (Ubuntu 12.04 LTS, 3.2.0-23-generic-pae i686). Built on Apr 7 2012
XBMC: XBMCBuntu 11.0 Git:Unknown (downloaded from the website and regularly updated with "apt-get upgrade")
Nvidia drivers version 295.40 (Card: GT520)

Default resolution: 1920x1080 60Hz

My xorg.conf: http://pastebin.com/tyM8HwFa
My xbmc.log: http://pastebin.com/gXyN53MY

Any help or advise is greatly appreciated!

RE: [XBMCbuntu] Impossible to change refresh rate? - LB06 - 2012-04-23 22:59

I have the same problem after upgrading from Ubuntu Oneiric to Precise. I'm using the XBMC and nvidia driver from the official Ubuntu repo, which are 11.0~git20120403.ec33f1f+repack1-4 and 295.40, respectively. My X log shows all modes are properly assembled, but XBMC doesn't seem to pick it up.

RE: [XBMCbuntu] Impossible to change refresh rate? - Devaron - 2012-04-24 20:28

Anybody? ... Sad

RE: [XBMCbuntu] Impossible to change refresh rate? - LB06 - 2012-04-26 09:52

A couple of days ago I received an update from Ubuntu for XBMC. It fixed the problem (for me at least).

Also, it never had anything to do with XBMCbuntu. I'm running XBMC standalone on my server/HTPC and use a remote to control it. No DE/WM involved whatsoever.

RE: [XBMCbuntu] Impossible to change refresh rate? - Devaron - 2012-04-26 12:15

And how did you install that update? With apt-get update/upgrade? It's weird that an update resolved it for you. Makes me think it's some sort of bug in a driver or something, but then why aren't more people reporting this?

Can't test it myself anymore though. I decided to reinstall and i hope the problem won't come back.

RE: [XBMCbuntu] Impossible to change refresh rate? - LB06 - 2012-04-26 17:14

Yes, the latest version in the Precise Universe repo is 11.0~git20120423.cd20772-1. So from 3 days ago. Got it through an apt upgrade.

RE: [XBMCbuntu] Impossible to change refresh rate? - .:B:. - 2012-04-27 02:56

Actually you should not need to fiddle with your Xorg modelines. Xorg should run pretty well without you needing to add any.

Try this in a terminal on Ubuntu (you can switch between Ubuntu and Xbmc):

Code:

$ DISPLAY=:0.0 xrandr

That will list you the supported resolutions and refresh rates, with an asterisk next to the active one. If all is well you should see 60 Hz, 50 Hz and (if your TV supports it) 24 Hz. Since 60 and 50 are multiples of respectively 30 and 25, you do not need any refresh rates at that frequency; those would be redundant.

If that looks allright, then set Xbmc to match the refresh rate of the display to refresh rate of the material you're displaying, not the other way around. It's somewhere in Video/Playback settings. That way Xbmc will make the TV switch refresh rate automatically when needed. Do this only if your TV supports 24 Hz (60 and 50 Hz aren't usually a problem).