Ubuntu
gnome-power-manager package

brightness adjust 3 steps from hard (Fn) keys

Bug #802276 reported by steubens
36
This bug affects 7 people
Affects Status Importance Assigned to Milestone
gnome-power
New
Medium
gnome-power-manager (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

the brightness adjusts in 3 steps, i thought it was annoying but adjustable in gconf; finally investigated and saw it wasn't :]

if i echo 0 > /sys/module/video/parameters/brightness_switch_enabled it reduces one of the extra steps

if i killall gnome-power-manager i get no backlight adjustment, from my understanding its solely responsible, but i can't find the extra brightness event input, acpi_listen shows the video adjustment, as does input-events 4 (the video device)

X opens the video event device as an input but i don't know if that means g-p-m will see it as another event

hoping someone can tell me more about g-p-m and where it gathers events so i can finish investigating, or solve the bug outright :]

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-power-manager 2.32.0-2ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-10.44~lp793796b5-generic 2.6.38.5
Uname: Linux 2.6.38-10-generic x86_64
Architecture: amd64
Date: Sun Jun 26 14:12:11 2011
GnomeSessionIdleInhibited: Yes
GnomeSessionInhibitors: 1: AppId = Power Manager Inhibit Applet, Flags = 15, Reason = Manual inhibit
GnomeSessionSuspendInhibited: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Hewlett-Packard Compaq Presario CQ60 Notebook PC
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=d332acb1-e554-4637-84fe-731b5e39212b ro quiet splash vt.handoff=7
SourcePackage: gnome-power-manager
UpgradeStatus: Upgraded to natty on 2011-03-17 (101 days ago)
dmi.bios.date: 12/15/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.65
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3612
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 09.67
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.65:bd12/15/2010:svnHewlett-Packard:pnCompaqPresarioCQ60NotebookPC:pvrPCID:rvnHewlett-Packard:rn3612:rvr09.67:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: Compaq Presario CQ60 Notebook PC
dmi.product.version: PCID
dmi.sys.vendor: Hewlett-Packard

Revision history for this message
steubens (steubens) wrote :
Revision history for this message
steubens (steubens) wrote :

oh and from my investigation of g-p-m (and g-p-m --verbose) it's only setting it once on the output, and it's using xrandr to do it

consider me extra confused

Revision history for this message
steubens (steubens) wrote :

 - Key 233 mapped to key brightness-up
TI:12:30:20 TH:0xce80a0 FI:gpm-button.c FN:gpm_button_emit_type,81
 - emitting button-pressed : brightness-up
TI:12:30:20 TH:0xce80a0 FI:gpm-manager.c FN:gpm_manager_button_pressed_cb,922
 - Button press event type=brightness-up
TI:12:30:20 TH:0xce80a0 FI:gpm-backlight.c FN:gpm_backlight_button_pressed_cb,451
 - Button press event type=brightness-up
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_trust_cache,565
 - using cache for value 50 (probably okay)
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_screen,537
 - using resource 0xda5070
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 1 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_output_up,393
 - hard value=6, min=0, max=10
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 2 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 3 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 4 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 5 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 6 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_screen,537
 - using resource 0xda5070
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 1 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_output_get_percentage,333
 - hard value=7, min=0, max=10
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_output_get_percentage,335
 - percentage 70
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 2 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 3 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 4 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 5 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-brightness.c FN:gpm_brightness_foreach_resource,491
 - resource 6 of 6
TI:12:30:20 TH:0xce80a0 FI:gpm-backlight.c FN:gpm_backlight_button_pressed_cb,480
 - emitting brightness-changed : 70
TI:12:30:20 TH:0xce80a0 FI:gpm-backlight-kbd.c FN:gpm_backlight_kbd_button_pressed_cb,367
 - Button press event type=brightness-up

i'm not sure why it shows 6, then 7 for the same adjustment

Bug Watch Updater (bug-watch-updater)
Changed in gnome-power:
importance: Unknown → Medium
status: Unknown → New
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gnome-power-manager (Ubuntu):
status: New → Confirmed
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