Package: hibernate Version: 1.94-2 Severity: normal Tags: patch My laptop, a P7120 lifebook, generally reports a value of 0 in /proc/acpi/video/GFX0/LCD/brightness, unless the brightness has been changed using that file. The current gfx_brightness scriptlet reads the value and writes it back, which works for values other than 0, but is a no-op for 0. My LCD brightness is not restored and it remains black on resume.
The attached patch checks for this, and if the value is 0, defaults to
4 instead.
-- Package-specific info:
--- configuration
==> /etc/hibernate/common.conf <==
Verbosity 0
LogFile /var/log/hibernate.log
LogVerbosity 1
Distribution debian
XDisplay :0
SaveClock restore-only
Runi915resolution yes
UnloadModules ata_piix mmc_core
UnloadBlacklistedModules yes
LoadModules auto
PauseAudio yes
SwitchToTextMode yes
XStatus x
XmessageDisable yes
XosdSettings --font '-misc-fixed-medium-r-semicondensed--*-120-*-*-c-*-*-*'
--colour=Green --shadow 1 --pos top --align center --offset 0
==> /etc/hibernate/disk.conf <==
TryMethod ususpend-disk.conf
TryMethod sysfs-disk.conf
==> /etc/hibernate/hibernate.conf <==
TryMethod ram.conf
==> /etc/hibernate/ram.conf <==
RestoreGFXBrightness yes
TryMethod sysfs-ram.conf
EnableVbetool yes
==> /etc/hibernate/suspend2.conf <==
UseSuspend2 yes
Reboot no
EnableEscape yes
DefaultConsoleLevel 1
Compressor lzf
Encryptor none
FullSpeedCPU yes
Include common.conf
==> /etc/hibernate/sysfs-disk.conf <==
UseSysfsPowerState disk
Include common.conf
==> /etc/hibernate/sysfs-ram.conf <==
UseSysfsPowerState mem
Include common.conf
==> /etc/hibernate/ususpend-both.conf <==
USuspendMethod both
Include common.conf
==> /etc/hibernate/ususpend-disk.conf <==
USuspendMethod disk
Include common.conf
==> /etc/hibernate/ususpend-ram.conf <==
USuspendMethod ram
Include common.conf
--- /sys/power
==> /sys/power/disk <==
shutdown
==> /sys/power/image_size <==
524288000
==> /sys/power/resume <==
0:0
==> /sys/power/state <==
mem disk
--- s2ram -n
Usage: s2ram [-nhi] [-fspmra]
Options:
-h, --help: this text.
-n, --test: test if the machine is in the database.
returns 0 if known and supported
-i, --identify: prints a string that identifies the machine.
-f, --force: force suspending, even on unknown machines.
the following options are only available with --force:
-s, --vbe_save: save VBE state before suspending and restore after resume.
-p, --vbe_post: VBE POST the graphics card after resume
-m, --vbe_mode: get VBE mode before suspend and set it after resume
-r, --radeontool: turn off the backlight on radeons before suspending.
-a, --acpi_sleep: set the acpi_sleep parameter before suspend
1=s3_bios, 2=s3_mode, 3=both
--- log
hibernate.log file not readable.
-- System Information:
Debian Release: 4.0
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Versions of packages hibernate depends on:
ii console-tools 1:0.2.3dbs-65 Linux console and font utilities
Versions of packages hibernate recommends:
ii dash 0.5.3-7 The Debian Almquist Shell
ii hdparm 6.9-1 tune hard disk parameters for high
ii uswsusp 0.5-1 tools to use userspace software su
ii vbetool 0.7-1.1 run real-mode video BIOS code to a
-- no debconf information
--
see shy jo
--- /home/joey/gfx_brightness 2007-02-12 19:17:01.000000000 -0500
+++ gfx_brightness 2007-02-12 19:15:36.000000000 -0500
@@ -13,7 +13,7 @@
return 1
fi
LEVEL="$(while read key value rest; do [ "$key" = current: ] && echo $value; done < $gfx_brightness_acpifile)"
- if [ -z "$LEVEL" ]; then
+ if [ -z "$LEVEL" ] || [ "$LEVEL" = 0 ]; then
vecho 0 "could not determine current brightness level, using default (4)"
LEVEL=4
fi
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