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|
#!/bin/sh
set -e
myname="update-glx"
usage()
{
echo "
$myname is a wrapper around update-alternatives supporting only configuration
of the 'glx' and 'nvidia' alternatives. After updating the alternatives, it
takes care to trigger any follow-up actions that may be required to complete
the switch.
It can be used to switch between the main NVIDIA driver version and the legacy
drivers (eg: the 304 series, the 340 series, etc).
For users with Optimus-type laptops it can be used to enable running the discrete
GPU via bumblebee.
Usage: $myname <command>
Commands:
--auto <name> switch the master link <name> to automatic mode.
--display <name> display information about the <name> group.
--query <name> machine parseable version of --display <name>.
--list <name> display all targets of the <name> group.
--config <name> show alternatives for the <name> group and ask the
user to select which one to use.
--set <name> <path> set <path> as alternative for <name>.
<name> is the master name for this link group.
Only 'nvidia' and 'glx' are supported.
<path> is the location of one of the alternative target files.
(e.g. /usr/lib/nvidia)
"
}
misusage()
{
echo "$myname: $1
Use '$myname --help' for program usage information."
exit 1
}
cmd=$1
alt=$2
case "$cmd" in
"")
misusage "need --display, --query, --list, --config, --set or --auto"
exit 1
;;
--help)
usage
exit 0
;;
--auto|--config|--display|--list|--query)
: pass to update-alternatives
;;
--set)
if [ -z "$3" ]; then
misusage "--set needs <name> <path>"
exit 1
fi
: pass to update-alternatives
;;
*)
misusage "unknown option '$cmd'"
exit 1
;;
esac
case "$alt" in
"")
misusage "$cmd needs <name>"
exit 1
;;
glx|nvidia)
: pass to update-alternatives
;;
*)
misusage "Unsupported alternative name: '$alt'"
exit 1
;;
esac
update-alternatives "$@"
case "$cmd" in
--display|--list|--query)
exit 0
;;
esac
TRIGGER=register-glx-alternative
if [ "$alt" = "nvidia" ]; then
TRIGGER=register-glx-alternative-nvidia
else
glx=$(update-alternatives --query glx | grep ^Value: | awk '{ print $2 }')
case $glx in
/usr/lib/mesa*)
TRIGGER=register-glx-alternative-mesa
;;
/usr/lib/nvidia*)
TRIGGER=register-glx-alternative-nvidia
;;
/usr/lib/fglrx*)
TRIGGER=register-glx-alternative-fglrx
;;
esac
fi
dpkg-trigger --no-await $TRIGGER
if [ -z "$DPKG_MAINTSCRIPT_PACKAGE" ]; then
dpkg --triggers-only --pending
fi
exit 0
|
