Bug#485443: pm-utils: mention {ADD,REMOVE}_PARAMETERS on man page

[Kapil Hari Paranjape]

Hello,

On Fri, 13 Jun 2008, Kapil Hari Paranjape wrote:
> Actually, the correct "98video" hook is enclosed. The earlier one
> missed the call to "vbetool vbemode set 3".

Sorry for the noise. Here (finally) is the 98video hook to replace
the 99video hook in /usr/lib/pm-utils/sleep.d/

Note that the order in which the enclosed script calls vbetool matches
that used in the files from the package acpi-support.

        /etc/acpi/suspend.d/80-video-vesa-state.sh
        /etc/acpi/resume.d/15-video-post.sh
        /etc/acpi/resume.d/17-video-restore.sh

Regards,

Kapil.
--


#!/bin/sh
#
# Copyright 2006-2007 Richard Hughes <[EMAIL PROTECTED]>
# Copyright 2007 Peter Jones <[EMAIL PROTECTED]>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.

# Handle video quirks.  If you are having suspend/resume issues,
# troubleshooting using this hook is probably the best place to start.
# If it weren't for video card quirks, suspend/resume on Linux would be 
# a whole lot more stable.

. "${PM_FUNCTIONS}"

for opt in $PM_CMDLINE; do
        case "${opt##--quirk-}" in # just quirks, please
                dpms-on)           QUIRK_DPMS_ON="true" ;;
                dpms-suspend)      QUIRK_DPMS_SUSPEND="true" ;;
                radeon-off)        QUIRK_RADEON_OFF="true" ;;
                reset-brightness)  QUIRK_RESET_BRIGHTNESS="true" ;;
                s3-bios)           QUIRK_S3_BIOS="true" ;;
                s3-mode)           QUIRK_S3_MODE="true" ;;
                vbe-post)          QUIRK_VBE_POST="true" ;;
                vbemode-restore)   QUIRK_VBEMODE_RESTORE="true" ;;
                vbestate-restore)  QUIRK_VBESTATE_RESTORE="true" ;;
                vga-mode3)         QUIRK_VGA_MODE_3="true" ;;
                none)              QUIRK_NONE="true" ;;
                *) continue ;;
        esac
done


reset_brightness()
{
        for bl in /sys/class/backlight/* ; do
                [ -f "$bl/brightness" ] || continue
                BR="$(cat $bl/brightness)"
                echo 0 > "$bl/brightness"
                echo "$BR" > "$bl/brightness"
        done
}

if command_exists vbetool; then
        vbe() { vbetool "$@"; }
else 
        vbe() { echo "vbetool not installed!" 1>&2; return 1; }
fi

if command_exists radeontool; then
        radeon() { radeontool "$@"; }
else 
        radeon() { echo "radeontool not found" 1>&2; return 1; }
fi

save_fbcon()
{
        local con
        for con in /sys/class/graphics/*/state; do
                [ -f $con ] || continue
                echo 1 >"${con}"
        done
}

resume_fbcon()
{
        local con
        for con in /sys/class/graphics/*/state; do
                [ -f $con ] || continue
                echo 0 >"${con}"
        done
}

# Some tiny helper functions for quirk handling
quirk() { [ "$1" = "true" ] && [ -z $QUIRK_NONE ]; }

# save/restore vbe state
vbe_savestate() { vbe vbestate save |savestate vbestate; }
vbe_restorestate() { restorestate vbestate |vbe vbestate restore; }

# save/restore the vbe mode
vbe_savemode() { vbe vbemode get |savestate vbemode; }
vbe_restoremode() { vbe vbemode get |savestate vbemode; }

# post the video card
vbe_post() { vbe post; sleep 0.1; }

# turn critical bits of radeon cards off/on
radeon_off() { radeon dac off; radeon light off; }
radeon_on() { radeon dac on; radeon light on; }

suspend_video()
{
        # 0=nothing, 1=s3_bios, 2=s3_mode, 3=both
        local acpi_flag=0
        quirk "${QUIRK_S3_BIOS}" &&             acpi_flag=$(($acpi_flag + 1))
        quirk "${QUIRK_S3_MODE}" &&             acpi_flag=$(($acpi_flag + 2))
        [ 0 -ne $acpi_flag ] && sysctl -w kernel.acpi_video_flags=$acpi_flag
        
        quirk "${QUIRK_VBEMODE_RESTORE}" &&     vbe_savemode
        quirk "${QUIRK_RADEON_OFF}" &&          radeon_off
        quirk "${QUIRK_VGA_MODE_3}" &&          vbe vbemode set 3
        quirk "${QUIRK_VBESTATE_RESTORE}" &&    vbe_savestate
        quirk "${QUIRK_DPMS_SUSPEND}" &&        vbe dpms suspend
        save_fbcon # there should be a quirk, but HAL does not pass it.
}
resume_video()
{
        # We might need to do one or many of these quirks
        quirk "${QUIRK_VBE_POST}" &&            vbe_post
        quirk "${QUIRK_VGA_MODE_3}" &&          vbe vbemode set 3
        quirk "${QUIRK_VBESTATE_RESTORE}" &&    vbe_restorestate
        quirk "${QUIRK_VBEMODE_RESTORE}" &&     vbe_restoremode
        resume_fbcon    # also should be handled by a quirk.
        quirk "${QUIRK_RADEON_OFF}" &&          radeon_on
        quirk "${QUIRK_DPMS_ON}" &&             vbe dpms on
        quirk "${QUIRK_RESET_BRIGHTNESS}" &&    reset_brightness
        return 0  # avoid spurious hook exit failure message.
}

help() {
        echo  # first echo makes it look nicer.
        echo "Video quirk handler options:"
        echo
        echo "  --quirk-dpms-on"
        echo "  --quirk-dpms-suspend"
        echo "  --quirk-radeon-off"
        echo "  --quirk-reset-brightness"
        echo "  --quirk-s3-bios"
        echo "  --quirk-s3-mode"
        echo "  --quirk-vbe-post"
        echo "  --quirk-vbemode-restore"
        echo "  --quirk-vbestate-restore"
        echo "  --quirk-vga-mode3"
        echo "  --quirk-none"
}

case "$1" in
        suspend) suspend_video ;;
        hibernate)
                if [ "$HIBERNATE_RESUME_POST_VIDEO" = "yes" ]; then
                        suspend_video
                fi
                ;;
        resume) resume_video ;;
        thaw)
                if [ "${HIBERNATE_RESUME_POST_VIDEO}" = "yes" ]; then
                        resume_video
                fi
                ;;
        help) help ;;
esac

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