hald constantly eating cpu

Jan Henrik Sylvester me at janh.de
Tue Apr 22 15:20:41 UTC 2008

Joe Marcus Clarke wrote:
> Jan Henrik Sylvester wrote:
>> After booting, top always shows about 4% user and 10% system without 
>> any process having any (W)CPU. If I stop hald, everything goes down to 
>> 0, if I start hald again after that, the cpu usage goes up again.
> This is most likely caused by the two mouse pollers.  You can follow the 
> HAL FAQ at http://www.freebsd.org/gnome/docs/halfaq.html to see how you 
> can ignore these two devices.  That will disable auto-config of the mice 
> in X, but it should reduce the CPU usage.

Thank you! I had to ignore both psm0 and ums0 to solve the problem.

I thought 10-mouse-sysmouse.fdi was introduced exactly to solve this 
problem. Or is there something special about my setup (with sysmouse 
providing a potential ums0 and psm0 being controlled by synaptics)?

This was quite hard to track down since no process showed up using the 
CPU. Only because I had read the commit message for hal and the thread 
in freebsd-gnome, I even tried to disable hald. Should mice be generally 
excluded from hal until the problem is really solved? Maybe I 
misunderstood something.

Jan Henrik

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