On Thu, Sep 03, 2009 at 04:06:29PM +1000, Patrick Shirkey wrote: > What I am seeing is a massive spike in xruns when running a gui app taht > connects to jack (even qjackctl) but nothing when playing a track from > the commandline ie mplayer -ao jack. This only happens if the wifi > module is installed. Without it there are no xruns for days. > > Unfortunately the snd the video device are on the same irq. > > Does anyone have an idea for why the gui system would become unstable > when the wifi device is added? /me handwaves It implies a larger than before amount of time being spent inside the driver for either the wifi device or the video device. The extra time or the temporary disabling of interrupts within that driver might be affecting the delivery and processing of interrupts for the other two devices. Consider how the wifi device is communicating with the CPU. Is it via PCI or USB? If USB, then the type of USB controller becomes interesting. You may have a controller that meets multiple specifications, and if so you may get different results by manually choosing the controller driver. Controller is often called host. Look at your modules installed. Scan for modules with names ending in hcd. Test them one at a time. That is to say, remove all USB devices except the offending device, remove (rmmod) all of the -hcd modules, then manually insert one at a time from this set: ehci-hcd.ko isp116x-hcd.ko ohci-hcd.ko r8a66597-hcd.ko sl811-hcd.ko u132-hcd.ko uhci-hcd.ko ... to find which ones work with the hardware and the device (using lsusb), then compare your findings against what was originally installed. -- James Cameron http://quozl.linux.org.au/ _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
