[linux-audio-user] intermittent X blackout in rt kernel

Aaron Phillips adphillips at gmail.com
Mon Nov 21 12:02:14 EST 2005

Has anyone experienced X going blank at random times for between 1 and
5 seconds at a pop?  I started out with a demudi mm kernel (I'm
running DeMudi) and never experienced this problem.  Once I ran my own
2.6.14-rt13 kernel, I saw this behavior consistently.  It's very annoying.
Basically, while in X, the screen would go blank every so often for a
short period and then reappear.  Periods between blackouts would be
between 1 second and 1 minute.  I am wondering if it has something to
do with the video having too low of a priority since this is a
realtime-preempt kernel.  I tried setting X to a higher prio with
chrt, but that had no effect.
Anyone have an idea?

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