On 05/09/2012 07:50 AM, Robin Gareus wrote:
On 05/09/2012 04:38 PM, Rui Nuno Capela wrote:
On 05/09/2012 02:03 AM, Fernando Lopez-Lezcano wrote:
PS: Another rtirq script in /etc/pm/sleep.d/ could save the current
priorities before a suspend and restore them after a resume - that does
not happen currently.
what about just `rtirq restart` on the sleep.d script (on thaw|resume) ?
indeed. that works just fine here since over 2 years.
the scripts I use to retain jackd2& qjackctl during suspend/resume
cycles are available from http://gareus.org/wiki/jack2contol
for dynamically switching audio-interfaces I settled on dbus (and not
udev, since jackd runs as user): http://gareus.org/blog/jack2dbus
Cool....
I'm attaching my first try at using a pm-utils script. This script saves
the priority state of all irq* processes and restores them after a
resume. It only restores the priority for processes that still exist
after the resume, and will do nothing for new processes (ie: you plugin
a usb card while the computer is sleeping). That would be taken care by
my previously posted udev script which would change priority of newly
inserted soundcards. I put 05rtirq it in /etc/pm/sleep.d/ directory...
it seems to be working fine in my laptop.
-- Fernando
#!/bin/bash
#
# rtirq_power: save and restore irq process priorities
#
# This script is called when a change in power status happens, when
# suspending it saves a list of all irq process priorities, when
# resuming it changes the priorities of the proper irq processes
# to the saved values
#
# Copyright (c) 2012 Fernando Lopez-Lezcano
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
. "${PM_FUNCTIONS}"
case $1 in
hibernate|suspend)
/bin/ps -eo rtprio=,comm= --sort -rtprio | /bin/egrep ' irq/[0-9]*' | savestate rtirq
;;
thaw|resume)
restorestate rtirq | while read IRQPRIO IRQCOMM ; do
if [ -n "${IRQPRIO}" -a -n "${IRQCOMM}" ] ; then
IRQPID=`/bin/ps -e -o pid,comm | grep " ${IRQCOMM}" | awk '{print $1}'`
if [ -n "${IRQPID}" ] ; then
PRIO=`/bin/ps -p ${IRQPID} -o rtprio=`
if [ ${PRIO} -ne ${IRQPRIO} ] ; then
/usr/bin/chrt -f -p ${IRQPRIO} ${IRQPID}
fi
fi
fi
done
;;
*) exit $NA
;;
esac
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@xxxxxxxxxxxxxxxxxxxx
http://lists.linuxaudio.org/listinfo/linux-audio-user
