high cpu usage for fluxgui

[lofidevops]

My system occasionally slows down with fluxgui using lots of CPU. This is during the day, so the screen temperature is not being changed.

I'm running latest PPA version on Natty. Any debug info I can provide?

[toxinu]

Same for me here on Ubuntu 12.10 32bits. Ahah issue is two years ago... :+1:

Bug appear mainly when I put my Ubuntu in suspendmode during 1-2 days.

[toxinu]

Has you can see:

[kongo]

Same here on Ubuntu 12.04 64 bit. It runs ok if I run xflux &, but CPU consumption grows drastically once I close the terminal which xflux used for output.

Before: After:

[stuaxo]

Just experienced the same, xflux @ 99% cpu, killed it and computer is a lot cooler..

[jbwinters]

xflux is proprietary, @herf might want to know about this

[dakotadelnorte]

I'm sorry for this comment, but, in Linux, I had the same problem, then, I search "change color temperature Linux" in google, and I found a very good solution, the app for this is: redshift ("sudo apt-get install redshift"). Although, I also use "flux" in my iOS, Windows and Mac devices, but in Linux, redshift works fine. I love flux, serously! It takes care of my eyes. Thanks a lot!

[jc00ke]

I just had to kill flux because it was pegging my laptop (Xubuntu 14.04)

The pid file isn't cleaned up when I kill xflux. I think the indicator applet should be responsible for trapping the signal and cleaning up the pid file. Thoughts?

[timoc]

agreed. xflux causes my laptop to randomly start running at top cpu, which heast up the laptop and starts the fan. So far i have nothing to limit it to. It happens at any time of night or day. ubuntu 14.04

[toxinu]

Two years of flux still have cpu issues. Time to switch to RedShift guys. Works like a charm on ubuntu: https://apps.ubuntu.com/cat/applications/precise/gtk-redshift/

[timoc]

I was about to suggest this. There is a kde plasmoid for it, which does not work so well, but redshift seems to.

[dmays]

Experiencing this on Ubuntu 14.04 64-bit. Surprised @herf hasn't responded here or fixed this in nearly 4 years.

[herf]

Basically every bug people currently is due to us doing a very-rough IPC over stdin/stdout. The daemon is pretty reliable running on its own. Currently when one side or the other sends too much data (bigger than the normal backlog) the communication channel either jams up (resulting in no changes after that) or winds up in a spinlock (which is worse and results in the 100% cpu issue).

I have a better version I made for our nascent Android build, based on Linux abstract sockets (didn't do dbus because it's not on all distros). Can backport it if someone wants to take on the GUI-side work.

[Kilian]

I would love to go a GUI rewrite in something like nw.js, atom or thrust, split of the GUI and the control API into separate components.

[Horlacher]

Same problem here with F.Lux on Ubuntu 14.04 64-bit and with previous versions. Fluxgui sporadically ate up my battery and I can confirm the relation to the suspend mode. The Android version works really great, congrats! I would love to get it on Ubuntu as well.

In the meantime I will switch back to Redshift which is stable. If you want to change the color tone or other settings, the Configuration file example is on the Redshift website.

[stuaxo]

@herf in the meantime, where is the shonky IPC over a pipe ?

[raywillis]

I found that xflux was using CPU 3 and 4 up to 100% alternately. This was really heating up my Lenovo x220i laptop. The fan was on 100%. I learned that heat can damage Li ion batteries. So I killed the xflux process and it stopped the heating. My advice is to uninstall f.lux.

[roipoussiere]

Same error using Awesome window manager. I switched to Redshift as suggested @socketubs.

[dawid2193487]

5 years

still not fixed

what the fuck f.lux.

[stuaxo]

@ca1ek Open source takes a long time, like waiting for a good wine. (Mostly because ${PROJECT_YOU_LIKE_TO_USE} has far less people working on it than you'd imagine, and even less with the time to fix bugs.

[dawid2193487]

I do understand, but 5 years for such an obnoxious bug is a lot too much. I don't really care by now, I switched to redshift.

[stuaxo]

I also switched to redshift, which has it's own problems. Had a a lot of time last year to dive in and fix problems on open source projects, and it does indeed take quite a bit of time to investigate and fix these things, hence most things are broken in software :/