Bug#510268: gnome-power-manager: Bug triggered by going onto battery power

Sam Morris sam at robots.org.uk
Wed Dec 31 00:53:27 UTC 2008


Package: gnome-power-manager
Followup-For: Bug #510268

I can trigger the bug by removing my laptop's power cable. This basically
causes g-p-m to go into some kind of loop where it no longer responds to
external events (such as suspend button or brightness keys).

Here's the output of running g-p-m with --verbose, and a backtrace obtained
after it started to spin:

TI:00:51:13	TH:0x24448c0	FI:gpm-array.c	FN:gpm_array_append,141
 - adding to 0x269ef70, x=45, y=100, data=65280
TI:00:51:13	TH:0x24448c0	FI:gpm-array.c	FN:gpm_array_append,141
 - adding to 0x269f100, x=45, y=12526, data=65280
TI:00:51:17	TH:0x24448c0	FI:gpm-manager.c	FN:ac_adapter_changed_cb,1028
 - Setting on-ac: 0
TI:00:51:17	TH:0x24448c0	FI:gpm-idle.c	FN:gpm_idle_set_system_timeout,287
 - Setting system idle timeout: 60
TI:00:51:17	TH:0x24448c0	FI:gpm-manager.c	FN:ac_adapter_changed_cb,1032
 - emitting on-ac-changed : 0
[New Thread 0x41075950 (LWP 24122)]
TI:00:51:17	TH:0x24448c0	FI:gpm-screensaver.c	FN:gpm_screensaver_add_throttle,318
 - adding throttle reason: 'On battery power': id 1180579573
TI:00:51:17	TH:0x24448c0	FI:gpm-screensaver.c	FN:gpm_screensaver_poke,410
 - poke
TI:00:51:17	TH:0x24448c0	FI:gpm-backlight.c	FN:gpm_backlight_brightness_evaluate_and_set,379
 - 1. main brightness 1.000000
TI:00:51:17	TH:0x24448c0	FI:gpm-backlight.c	FN:gpm_backlight_brightness_evaluate_and_set,397
 - 2. battery scale 0.500000, brightness 0.500000
TI:00:51:17	TH:0x24448c0	FI:gpm-backlight.c	FN:gpm_backlight_brightness_evaluate_and_set,416
 - 3. idle scale 1.000000, brightness 0.500000
TI:00:51:17	TH:0x24448c0	FI:gpm-backlight.c	FN:gpm_backlight_brightness_evaluate_and_set,436
 - 4. ambient scale 1.000000, brightness 0.500000
TI:00:51:17	TH:0x24448c0	FI:gpm-brightness.c	FN:gpm_brightness_trust_cache,102
 - using cache for value 100 (probably okay)
TI:00:51:17	TH:0x24448c0	FI:gpm-feedback-widget.c	FN:gpm_feedback_display_value,140
 - Displaying 0.500000 on feedback widget
TI:00:51:17	TH:0x24448c0	FI:gpm-refcount.c	FN:gpm_refcount_add,100
 - refcount now: 1
TI:00:51:17	TH:0x24448c0	FI:gpm-refcount.c	FN:gpm_refcount_add,101
 - non zero, so sending REFCOUNT_ADDED
TI:00:51:17	TH:0x24448c0	FI:gpm-brightness.c	FN:gpm_brightness_trust_cache,102
 - using cache for value 100 (probably okay)
TI:00:51:17	TH:0x24448c0	FI:gpm-brightness-xrandr.c	FN:gpm_brightness_xrandr_foreach_screen,414
 - using resource 0x26464f0
TI:00:51:17	TH:0x24448c0	FI:gpm-brightness-xrandr.c	FN:gpm_brightness_xrandr_foreach_resource,375
 - resource 1 of 2
TI:00:51:17	TH:0x24448c0	FI:gpm-brightness-xrandr.c	FN:gpm_brightness_xrandr_foreach_resource,375
 - resource 2 of 2
TI:00:51:17	TH:0x24448c0	FI:gpm-brightness-xrandr.c	FN:gpm_brightness_xrandr_output_set,322
 - percent=50, absolute=12382
TI:00:51:17	TH:0x24448c0	FI:gpm-brightness-xrandr.c	FN:gpm_brightness_xrandr_output_set,324
 - hard value=24765, min=0, max=24765
[New Thread 0x41876950 (LWP 24125)]
[New Thread 0x42077950 (LWP 24126)]
[New Thread 0x42878950 (LWP 24127)]
[New Thread 0x43079950 (LWP 24128)]
[Thread 0x42878950 (LWP 24127) exited]
[Thread 0x43079950 (LWP 24128) exited]
[Thread 0x42077950 (LWP 24126) exited]
[New Thread 0x42077950 (LWP 24129)]
[New Thread 0x43079950 (LWP 24130)]
[Thread 0x42077950 (LWP 24129) exited]
[Thread 0x43079950 (LWP 24130) exited]
[New Thread 0x43079950 (LWP 24132)]
[New Thread 0x42077950 (LWP 24133)]
[New Thread 0x42878950 (LWP 24134)]
[Thread 0x42878950 (LWP 24134) exited]
^C
Program received signal SIGINT, Interrupt.
0x00007f41fb271ce2 in select () from /lib/libc.so.6

(gdb) where
#0  0x00007f41fb271ce2 in select () from /lib/libc.so.6
#1  0x00007f41f8e2f9e6 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f41f8e31575 in xcb_wait_for_reply () from /usr/lib/libxcb.so.1
#3  0x00007f41fe8a40ce in _XReply (dpy=0x2469b70, rep=0x7fff0abdeae0, extra=0, discard=1) at ../../src/xcb_io.c:366
#4  0x00007f41fe897ce3 in XSync (dpy=0x2469b70, discard=0) at ../../src/Sync.c:48
#5  0x00007f41fd9b330e in IA__gdk_flush () at /tmp/buildd/gtk+2.0-2.14.5/gdk/x11/gdkevents-x11.c:2546
#6  0x000000000041d262 in gpm_brightness_xrandr_output_set_internal (brightness=0x263dad0, output=76, value=23704) at gpm-brightness-xrandr.c:127
#7  0x000000000041d97d in gpm_brightness_xrandr_foreach_screen (brightness=0x263dad0, op=ACTION_BACKLIGHT_SET) at gpm-brightness-xrandr.c:349
#8  0x000000000041dce0 in gpm_brightness_xrandr_set (brightness=0x263dad0, percentage=50, hw_changed=0x7fff0abdebfc) at gpm-brightness-xrandr.c:443
#9  0x000000000041bd70 in gpm_brightness_set (brightness=0x263da80, percentage=50, hw_changed=0x7fff0abdec60) at gpm-brightness.c:133
#10 0x00000000004145b1 in gpm_backlight_brightness_evaluate_and_set (backlight=0x2479650, interactive=1) at gpm-backlight.c:453
#11 0x00007f41fb9e80fd in IA__g_closure_invoke (closure=0x2648e10, return_value=0x0, n_param_values=2, param_values=0x26b2ef0, 
    invocation_hint=0x7fff0abdedd0) at /build/buildd/glib2.0-2.18.3/gobject/gclosure.c:767
#12 0x00007f41fb9fbced in signal_emit_unlocked_R (node=0x260e1f0, detail=0, instance=0x24c7a00, emission_return=0x0, instance_and_params=0x26b2ef0)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:3244
#13 0x00007f41fb9fd1b8 in IA__g_signal_emit_valist (instance=0x24c7a00, signal_id=<value optimized out>, detail=0, var_args=0x7fff0abdefb0)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:2977
#14 0x00007f41fb9fd6b3 in IA__g_signal_emit (instance=0x6, signal_id=180218160, detail=180218032)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:3034
#15 0x00007f41fb9e80fd in IA__g_closure_invoke (closure=0x2613480, return_value=0x0, n_param_values=5, param_values=0x261d140, 
    invocation_hint=0x7fff0abdf1d0) at /build/buildd/glib2.0-2.18.3/gobject/gclosure.c:767
#16 0x00007f41fb9fbced in signal_emit_unlocked_R (node=0x260e510, detail=0, instance=0x25efe40, emission_return=0x0, instance_and_params=0x261d140)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:3244
#17 0x00007f41fb9fd1b8 in IA__g_signal_emit_valist (instance=0x25efe40, signal_id=<value optimized out>, detail=0, var_args=0x7fff0abdf3b0)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:2977
#18 0x00007f41fb9fd6b3 in IA__g_signal_emit (instance=0x6, signal_id=180218160, detail=180218032)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:3034
#19 0x000000000042fe4d in watch_device_properties_modified_cb (proxy=<value optimized out>, type=<value optimized out>, properties=0x26be260, 
    device=0x25efe40) at libhal-gdevice.c:311
#20 0x00007f41fdc183f4 in marshal_dbus_message_to_g_marshaller (closure=0x26130a0, return_value=0x0, n_param_values=<value optimized out>, 
    param_values=<value optimized out>, invocation_hint=0x7fff0abdf690, marshal_data=0x0) at dbus-gproxy.c:1665
#21 0x00007f41fb9e80fd in IA__g_closure_invoke (closure=0x26130a0, return_value=0x0, n_param_values=3, param_values=0x26a0e30, 
    invocation_hint=0x7fff0abdf690) at /build/buildd/glib2.0-2.18.3/gobject/gclosure.c:767
#22 0x00007f41fb9fbced in signal_emit_unlocked_R (node=0x260b5a0, detail=1140, instance=0x2483a00, emission_return=0x0, 
    instance_and_params=0x26a0e30) at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:3244
#23 0x00007f41fb9fd1b8 in IA__g_signal_emit_valist (instance=0x2483a00, signal_id=<value optimized out>, detail=1140, var_args=0x7fff0abdf870)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:2977
#24 0x00007f41fb9fd6b3 in IA__g_signal_emit (instance=0x6, signal_id=180218160, detail=180218032)
    at /build/buildd/glib2.0-2.18.3/gobject/gsignal.c:3034
#25 0x00007f41fdc194ee in dbus_g_proxy_manager_filter (connection=<value optimized out>, message=0x24a8220, user_data=0x260c1f0)
    at dbus-gproxy.c:1718
#26 0x00007f41fbc2f4db in dbus_connection_dispatch () from /usr/lib/libdbus-1.so.3
#27 0x00007f41fdc10135 in message_queue_dispatch (source=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>)
    at dbus-gmain.c:101
#28 0x00007f41fb751aab in IA__g_main_context_dispatch (context=0x247d6b0) at /build/buildd/glib2.0-2.18.3/glib/gmain.c:2144
#29 0x00007f41fb75526d in g_main_context_iterate (context=0x247d6b0, block=1, dispatch=1, self=<value optimized out>)
    at /build/buildd/glib2.0-2.18.3/glib/gmain.c:2778
#30 0x00007f41fb75579d in IA__g_main_loop_run (loop=0x26a3060) at /build/buildd/glib2.0-2.18.3/glib/gmain.c:2986
#31 0x0000000000420584 in main (argc=3, argv=0x7fff0abdfee8) at gpm-main.c:268

ltrace output:

[pid 11697]  <... g_usleep resumed> )            = 1
[pid 11697]  gdk_error_trap_push(0xe94ad0, 76, 0xe9cfb0, 0, 0xcc1838) = 1
[pid 11697]  XRRChangeOutputProperty(0xcc0af0, 76, 77, 19, 32) = 0
[pid 11697]  XFlush(0xcc0af0, 0, 0x7f59a468cd48, 1, 0xcc1838 <unfinished ...>
[pid 11697]   SYS_select(4, 0x7fffb3c8eab0, 0x7fffb3c8ea30, 0, 0) = 1
[pid 11697]   SYS_writev(3, 0x7fffb3c8eba0, 1)   = 28
[pid 11697]   SYS_read(3, ???, 4096)             = -11
[pid 11697]  <... XFlush resumed> )              = 1
[pid 11697]  gdk_flush(1, 0, 0x7f59a468cd48, 1, 0xcc1838 <unfinished ...>
[pid 11697]   SYS_select(4, 0x7fffb3c8e9d0, 0x7fffb3c8e950, 0, 0) = 1
[pid 11697]   SYS_writev(3, 0x7fffb3c8eac0, 1)   = 4
[pid 11697]   SYS_select(4, 0x7fffb3c8ea40, 0x7fffb3c8e9c0, 0, 0) = 1
[pid 11697]   SYS_read(3, "\001\002\313\023", 4096) = 32
[pid 11697]   SYS_read(3, ???, 4096)             = -11
[pid 11697]  <... gdk_flush resumed> )           = 1
[pid 11697]  gdk_error_trap_pop(1, 0, 0x7f59a468cd48, 0, 0xcc1838) = 0
[pid 11697]  g_usleep(5000, 0, 12382, 1, 0xcc1838 <unfinished ...>
[pid 11697]   SYS_nanosleep(0x7fffb3c8ec40, 0x7fffb3c8ec30, 2, 1, 0xcc1838^C) = 0

... repeats forever ...

-- Package-specific info:
Distro version:       5.0
Kernel version:       2.6.26-1-amd64
g-p-m version:        2.24.2
HAL version:          0.5.11
System manufacturer:  missing
System version:       missing
System product:       missing
AC adapter present:   yes
Battery present:      yes
Laptop panel present: no
CPU scaling present:  yes
Battery Information:
  battery.charge_level.current = 51060  (0xc774)  (int)
  battery.charge_level.design = 53280  (0xd020)  (int)
  battery.charge_level.last_full = 51060  (0xc774)  (int)
  battery.charge_level.percentage = 100  (0x64)  (int)
  battery.charge_level.rate = 0  (0x0)  (int)
  battery.is_rechargeable = true  (bool)
  battery.model = ''  (string)
  battery.present = true  (bool)
  battery.rechargeable.is_charging = false  (bool)
  battery.rechargeable.is_discharging = false  (bool)
  battery.reporting.current = 4600  (0x11f8)  (int)
  battery.reporting.design = 4800  (0x12c0)  (int)
  battery.reporting.last_full = 4600  (0x11f8)  (int)
  battery.reporting.rate = 0  (0x0)  (int)
  battery.reporting.technology = 'Li-ion'  (string)
  battery.reporting.unit = 'mAh'  (string)
  battery.serial = ''  (string)
  battery.technology = 'lithium-ion'  (string)
  battery.type = 'primary'  (string)
  battery.vendor = 'SAMSUNG Electronics'  (string)
  battery.voltage.current = 12525  (0x30ed)  (int)
  battery.voltage.design = 11100  (0x2b5c)  (int)
  battery.voltage.unit = 'mV'  (string)
GNOME Power Manager Process Information:
sam      14145  0.0  0.9 227100 19552 ?        S    Dec30   0:01 gnome-power-pre
HAL Process Information:
106      12088  0.0  0.2  29696  4524 ?        Ss   Dec24   2:01 /usr/sbin/hald
root     12089  0.0  0.0  17804  1236 ?        S    Dec24   0:22  \_ hald-runner
106      12113  0.0  0.0  16604  1004 ?        S    Dec24   0:00      \_ hald-ad
root     12114  0.0  0.0  19944  1364 ?        S    Dec24   0:08      \_ hald-ad
root     12124  0.0  0.0  19916  1172 ?        S    Dec24   1:30      \_ hald-ad

-- System Information:
Debian Release: 5.0
  APT prefers testing
  APT policy: (530, 'testing'), (520, 'unstable'), (400, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages gnome-power-manager depends on:
ii  dbus-x11               1.2.1-4           simple interprocess messaging syst
ii  gconf2                 2.24.0-4local1    GNOME configuration database syste
ii  hal                    0.5.11-6          Hardware Abstraction Layer
ii  libart-2.0-2           2.3.20-2          Library of functions for 2D graphi
ii  libatk1.0-0            1.22.0-1          The ATK accessibility toolkit
ii  libbonobo2-0           2.22.0-1          Bonobo CORBA interfaces library
ii  libbonoboui2-0         2.22.0-1          The Bonobo UI library
ii  libc6                  2.7-16            GNU C Library: Shared libraries
ii  libcairo2              1.8.6-1           The Cairo 2D vector graphics libra
ii  libdbus-1-3            1.2.1-4           simple interprocess messaging syst
ii  libdbus-glib-1-2       0.76-1            simple interprocess messaging syst
ii  libfontconfig1         2.6.0-3           generic font configuration library
ii  libfreetype6           2.3.7-2           FreeType 2 font engine, shared lib
ii  libgconf2-4            2.24.0-4local1    GNOME configuration database syste
ii  libglade2-0            1:2.6.2-1         library to load .glade files at ru
ii  libglib2.0-0           2.18.3-1          The GLib library of C routines
ii  libgnome-keyring0      2.24.1-1          GNOME keyring services library
ii  libgnome2-0            2.20.1.1-1        The GNOME 2 library - runtime file
ii  libgnomecanvas2-0      2.20.1.1-1        A powerful object-oriented display
ii  libgnomeui-0           2.24.0-1          The GNOME 2 libraries (User Interf
ii  libgnomevfs2-0         1:2.22.0-5        GNOME Virtual File System (runtime
ii  libgstreamer0.10-0     0.10.21-5         Core GStreamer libraries and eleme
pi  libgtk2.0-0            2.14.5-1          The GTK+ graphical user interface 
ii  libhal1                0.5.11-6          Hardware Abstraction Layer - share
ii  libice6                2:1.0.4-1         X11 Inter-Client Exchange library
ii  libnotify1 [libnotify1 0.4.4-3sam1       sends desktop notifications to a n
ii  liborbit2              1:2.14.13-0.1     libraries for ORBit2 - a CORBA ORB
ii  libpanel-applet2-0     2.24.2-3          library for GNOME Panel applets
ii  libpango1.0-0          1.22.3-1          Layout and rendering of internatio
ii  libpng12-0             1.2.27-2          PNG library - runtime
ii  libpopt0               1.14-4            lib for parsing cmdline parameters
ii  libsm6                 2:1.0.3-2         X11 Session Management library
ii  libwnck22              2.22.3-1          Window Navigator Construction Kit 
ii  libx11-6               2:1.1.5-2         X11 client-side library
ii  libxcursor1            1:1.1.9-1         X cursor management library
ii  libxext6               2:1.0.4-1         X11 miscellaneous extension librar
ii  libxfixes3             1:4.0.3-2         X11 miscellaneous 'fixes' extensio
ii  libxi6                 2:1.1.4-1         X11 Input extension library
ii  libxinerama1           2:1.0.3-2         X11 Xinerama extension library
ii  libxml2                2.6.32.dfsg-5     GNOME XML library
ii  libxrandr2             2:1.2.3-1         X11 RandR extension library
ii  libxrender1            1:0.9.4-2         X Rendering Extension client libra
ii  notification-daemon    0.3.7-1+b1        a daemon that displays passive pop
ii  zlib1g                 1:1.2.3.3.dfsg-12 compression library - runtime

gnome-power-manager recommends no packages.

gnome-power-manager suggests no packages.

-- no debconf information





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