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[SOLVED] Excessive CPU usage

Posted: Tue Apr 01, 2014 8:05 pm
by dboxall123
Hello everyone!

I decided to try out LMMS yesterday for the first time. I'm bit of a noob when it comes to music production, but we all have to start somewhere.

I installed lmms to my machine which is currently running with arch linux installed. It's not a great computer, a hp 507 with Intel Core Duo T600 (2.33 Ghz) and 2 GB of ram. As soon as I start the program, it uses 100% of BOTH cpu's. The fans start going into overdrive, and it still gets really hot. I've been looking online for some sort of a solution, and the only thing that I can find is on the lmms troubleshooting guide. The page says that I'm probably running an old version (which was correct), it's due to an bug, and I should install the latest version. So, I uninstalled it, and compiled the latest one from source. I still have the exact same problem. Dammit. Does anyone have any ideas of how I could sort this out? I don't really want to damage my computer...

Many thanks in advance,
-Dan

Re: Excessive CPU usage

Posted: Tue Apr 01, 2014 8:54 pm
by diiz
Where exactly did you get your source? We no longer host sources in sourceforge so if you got it from sf it's going to be outdated.

You need to download sources from github, from the stable-1.0 branch.

https://github.com/LMMS/lmms

Compile instructions https://github.com/LMMS/lmms/wiki/Compiling-lmms

Re: Excessive CPU usage

Posted: Tue Apr 01, 2014 9:31 pm
by dboxall123
Hi diiz. thanks for the reply. The source I downloaded was from github, from the same page that you just sent me a link to. Any ideas?

Re: Excessive CPU usage

Posted: Tue Apr 01, 2014 9:59 pm
by diiz
Which sound backend are you using?

Try switching to Jack or ALSA. If you use ALSA, see also this:

http://lmms.sourceforge.net/wiki/index. ... ts_in_LMMS

Re: Excessive CPU usage

Posted: Wed Apr 02, 2014 6:07 pm
by dboxall123
Dammit, I was afraid you'd say something like that. I currently use OSS, because I've never managed to get ALSA to work. Oh well, I'm gonna have another try at getting ALSA properly installed. Hopefully I'll actually get somewhere this time. Thanks for your help :D

Re: Excessive CPU usage

Posted: Wed Apr 02, 2014 6:27 pm
by diiz
dboxall123 wrote:Dammit, I was afraid you'd say something like that. I currently use OSS, because I've never managed to get ALSA to work. Oh well, I'm gonna have another try at getting ALSA properly installed. Hopefully I'll actually get somewhere this time. Thanks for your help :D
Yeah, OSS doesn't work very well.

You could also try Jack instead, I think it has an OSS backend.

Re: [SOLVED] Excessive CPU usage

Posted: Thu Apr 03, 2014 4:47 pm
by dboxall123
Couldn't get ALSA to work, so I just installed ubuntu to dual boot from. And, it works perfectly! Thanks diiz!