Screen goes black while watching online video clips.

Hi guys;
It sounds easy to solve but I’m completely lost in it. I tried KDE settings: disabled screen saver, disabled monitor power management… Nothing worked. Even I tried to find something in YAST – no luck. Actually screen goes black after about 10 mins of inactivity which is annoying while watching in ex. Youtube. Playing Kaffeine is OK - I think it’s because Kaffeine makes “fake mouse movements”.

Suse 11.3, Linux 2.6.34.4-0.1-default x86_64, KDE: 4.4.4 (KDE 4.4.4) “release 2”
ADM Athlon Dual Core 4450e (2.3GHz), 2 GB RAM, GeForce 9600 GSO 512 with nVidia driver

At one point I had this solved by some Black Magic on my main box, where I watch stuff like you. But then KDE changed all the settings and depreciated them too. Now I use Gnome on that machine - problem solved.

I wouldn’t call it good news :slight_smile: So do you think it’s a KDE4 bug? It started on my box from 11.2, Before that it was OK. Well, Gnome is very nice but it’s not “my” manager. I tried it with Suse, Ubuntu and for short time on Fedora. It feels kine of claustrofobic tight :slight_smile:

Thanks for so quick response
cheers TJ

It could be a the kernel screen blanker but I have no idea how to really turn it off. I had that with 10.1. Playing around I somehow manage to rurn it on but never found how to turn it of. I know there is a xterm command but never found a reliable place to use it for the GUI screen.

I’m fairly sure I bug reported it upstream some time ago. Might be worth another push there:
https://bugs.kde.org/
But I couldn’t find mine
Check this though
https://bugs.kde.org/show_bug.cgi?id=179144

I’m pretty sure I’ve “fixed it”. It’s kind of workaround. In “power management / general settings” I marked “let power_Devil manage screen…”, and in “edit profiles” set “dim display when idle…” for 180 mins. So now I have at least 3 hrs to watch video without disruption.

It looks as it is “a the kernel screen blanker” problem just as gogalthorp said. Two deamons compete with each other to do the same task. When one of them is disabled the other one is triggered. So the solution is to activate the one which we can control.

cheers