Public bug reported:
Binary package hint: gnome-power-manager
Hi, I'm on a Thinkpad R60e, using Hardy, and gpm is version
2.22.1-1ubuntu4.
My problem is that occasionally, my laptop will just turn the screen up
to full brightness, most noticeably when I'm trying to play a movie or
doing anything after a short period of inactivity. I've looked around a
little, and I think I see the problem. This is gpm's log just after I
pressed a key after leaving the computer alone for half a minute.
[gpm_screensaver_powersave_idle_changed] gpm-screensaver.c:102 (22:56:22):
emitting powersave-idle-changed : (0)
[powersave_idle_changed_cb] gpm-idle.c:335 (22:56:22): Received GS powesave
idle changed: 0
[gpm_idle_set_mode] gpm-idle.c:98 (22:56:22): Doing a state transition: 0
[gpm_backlight_notify_system_idle_changed] gpm-backlight.c:602 (22:56:22):
we have just been idle for 24,336674s
[gpm_backlight_notify_system_idle_changed] gpm-backlight.c:633 (22:56:22):
changing powersave idle status to 0
[gpm_brightness_lcd_get_hw] gpm-brightness-lcd.c:116 (22:56:22):
GetBrightness returned level: 0
[gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:378 (22:56:22):
1. currently set brightness 0,000000
[gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:414 (22:56:22):
2. battery change by -0,000010, brightness 0,000000
[gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:451 (22:56:22):
3. idle change by 0,700000, brightness 0,700000
[gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:471 (22:56:22):
4. ambient scale 1,000000, brightness 0,700000
[gpm_brightness_lcd_get_hw] gpm-brightness-lcd.c:116 (22:56:22):
GetBrightness returned level: 0
[gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:489 (22:56:22):
emitting brightness-changed : 70
[gpm_brightness_lcd_dim_hw] gpm-brightness-lcd.c:267 (22:56:22):
new_level_hw=3
[gpm_brightness_lcd_dim_hw_step] gpm-brightness-lcd.c:198 (22:56:22):
new_level_hw=3, last_set_hw=0
[gpm_brightness_lcd_set_hw] gpm-brightness-lcd.c:155 (22:56:22):
Setting 0 of 5
[gpm_brightness_lcd_set_hw] gpm-brightness-lcd.c:155 (22:56:22):
Setting 1 of 5
[gpm_brightness_lcd_set_hw] gpm-brightness-lcd.c:155 (22:56:22):
Setting 2 of 5
[gpm_brightness_lcd_set_hw] gpm-brightness-lcd.c:155 (22:56:22):
Setting 3 of 5
[gpm_backlight_sync_policy] gpm-backlight.c:161 (22:56:22): choosing
sensible default
[gpm_backlight_sync_policy] gpm-backlight.c:163 (22:56:22): laptop, so use
GPM_DPMS_METHOD_OFF
[gpm_backlight_sync_policy] gpm-backlight.c:195 (22:56:22): BACKLIGHT
parameters 0 0 300, method '4'
[x11_sync_server_dpms_settings] gpm-dpms.c:130 (22:56:22): Syncing DPMS
settings enabled=1 timeouts=0 0 0
[idle_changed_cb] gpm-manager.c:869 (22:56:22): Idle state changed: NORMAL
[gpm_info_event_log] gpm-info.c:594 (22:56:22): Adding 4 to the event log
Apparently this is where something goes wrong:
[gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:451 (22:56:22):
3. idle change by 0,700000, brightness 0,700000
Disabling the screensaver doesn't help. Are there any workarounds until
this is fixed? It's rather annoying, because I don't like reading at
full brightness (and it's harder on the battery).
Thanks in advance!
** Affects: gnome-power-manager (Ubuntu)
Importance: Undecided
Status: New
--
screensaver events cause gnome-power-manager to switch to full brightness by
itself sporadically
https://bugs.launchpad.net/bugs/218894
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