I've been developing a workaround for
https://bugs.launchpad.net/ubuntu/+source/linux-restricted-modules-2.6.24/+bug/197209
(fglrx + compiz fusion won't resume) and I think I have nearly
everything working really well, but there's still a niggling problem.
I must stop all compiz processes before suspend invokes chvt or resume
fails. I'm killing and re-launching the process that started
compiz.real (in my case, fusion-icon) after resume. When I do that
manually (or simply choose "reload window manager" from the fusion-icon
menu), everything works fine. When I try to do the kill/re-launch as
part of my resume script, compiz runs, but with different settings than
the usual that come from fusion-icon. Instead it seems to be using
the settings that you get when enabling "Desktop Effects" in Ubuntu.
For example, instead of a rotating cube, I get the toned-down ubuntu
desktop sliding effect, and instead of my usual 4 desktop workspaces I
get 2.
This problem occurs even when
Preferences > Appearance > Visual Effects
has desktop effects disabled. Can anyone suggest a way to make this
work as I intend? My scripts are enclosed.
Thanks in advance,
Dave
=== /etc/pm/config.d/00-compiz-stop.sh ===
# For each running instance of compiz.real, record the parent process
# so that we can restart it after resume. We're going to kill
# compiz.real, but the parent processes seem to keep running anyway.
# Upon resume we'll simply kill the parents and re-issue the commands
# that were used to start them.
export COMPIZ_PARENTS
for x in `pgrep compiz.real`; do
# This is usually "fusion-icon..." or "compiz-tray-icon..." or
# "compiz --replace", etc.
COMPIZ_PARENTS="$(echo $(ps --no-headers -o ppid $x)) $COMPIZ_PARENTS"
done
# Define an override to chvt that sneaks in and kills off all compiz
# processes before fglrx can break trying to suspend them
chvt() {
# Now kill off all the compiz.real processes and wait for them to
# exit before we do the VT switch
killall -s 15 compiz.real
while pgrep compiz.real; do sleep 0.1; done
# Remove this definition so we don't recurse forever.
unset -f chvt
# Now do what we were asked to do.
chvt "$1"
}
=== /etc/pm/sleep.d/00compiz ===
#!/bin/bash
. /usr/lib/pm-utils/functions
. /usr/share/acpi-support/power-funcs
resume_compiz()
{
# Iterate over the pids of all the processes that launched compiz
local compiz_parents="$(restorestate compiz_parents)"
local compiz_parent
for compiz_parent in ${compiz_parents}; do
# Remember the command used to invoke it
local compiz_cmd=$(ps --no-headers -o cmd ${compiz_parent})
# Look in the process environment for the DISPLAY setting
local displaynum=$(grep -zx "DISPLAY=:.*" /proc/${compiz_parent}/environ | sed -r -e 's/DISPLAY=:([0-9.]+)/\1/')
# If we have found a display, we can kill the compiz parent
# process and re-invoke it. If we've failed to find the
# display, X will resume without a WM and it will be up to the
# user to re-invoke the compiz parent manually.
if [ -n "$displaynum" ]; then
# set up XAUTHORITY for that display
getXuser
local compiz_user="${user}"
# what /usr/share/acpi-support/power-funcs does is
# actually inadequate in the case where the user has lost
# write permission on his own .Xauthority file, so we make
# a list including any likely fallback files, and keep
# trying until we find one that works.
local xauth
for xauth in "$XAUTHORITY" /tmp/.gdm* "" ; do
if [ -f "$xauth" ] && ( \
sudo -u "$compiz_user" touch "$xauth"); then
# Now we can kill the invoker of compiz.real...
kill -s 15 $compiz_parent
# ...and reinvoke it
sudo -b -H -u "$compiz_user" XAUTHORITY="$xauth" DISPLAY=":$displaynum" ${compiz_cmd}
break
fi
done
fi
# Move on to next compiz invoking PID
done
}
case "$1" in
suspend|hibernate)
savestate compiz_parents "$COMPIZ_PARENTS"
;;
resume|thaw)
resume_compiz
;;
*)
;;
esac
exit $?
--
Dave Abrahams
Boost Consulting
http://boost-consulting.com
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