Bug 133800 - kmix eats 99% CPU when USB sound card disconnected
Summary: kmix eats 99% CPU when USB sound card disconnected
Status: RESOLVED DUPLICATE of bug 127294
Alias: None
Product: kmix
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Compiled Sources Linux
: NOR normal
Target Milestone: ---
Assignee: Christian Esken
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-09-09 10:43 UTC by Juuso Alasuutari
Modified: 2006-09-19 02:13 UTC (History)
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Description Juuso Alasuutari 2006-09-09 10:43:44 UTC 
Version:            (using KDE KDE 3.5.4)
Installed from:    Compiled From Sources
Compiler:          gcc 4.0.3 
OS:                Linux

I have a USB sound card as hw:0 and an integrated sound card as hw:1. When I unplug the USB card kmix starts using 99% CPU, but remains otherwise responsive. I am using aRTS with ALSA.

In `valgrind kmix` when the USB card is disconnected, the screen is flooded with this single line:

  kmix: Mixer_ALSA::poll() , Error: poll() returns POLLNVAL

This must be what keeps kmix so preoccupied as to use all available CPU.
Comment 1 Christian Esken 2006-09-19 02:13:53 UTC 

*** This bug has been marked as a duplicate of 127294 ***