[Karmic] Brightness Buttson OSD Test Acer Aspire 5810-4657

[Dan Trevino]

Indicator works, but brightness does not change.

ProblemType: Bug
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 2885 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd4400000 irq 22'
   Mixer name : 'Intel G45 DEVCTG'
   Components : 'HDA:10ec0269,1025022b,00100004 HDA:80862802,80860101,00100000'
   Controls : 23
   Simple ctrls : 12
CheckboxTest: 016_brightness_func
Date: Fri Sep 18 19:24:41 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=74e2ad56-6fdf-4da5-bca2-67328b81bd4e
MachineType: Acer Aspire 5810T
Package: linux-image-2.6.31-10-generic 2.6.31-10.34
PccardctlIdent:

PccardctlStatus:

ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-10-generic root=UUID=b2c5ada8-1b57-42ad-9d75-cdb75e93ff81 ro quiet splash
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-10-generic N/A
 linux-firmware 1.18
SourcePackage: linux
Tags: checkbox-bug
Uname: Linux 2.6.31-10-generic i686
dmi.bios.date: 04/06/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.06.
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Aspire 5810T
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrV1.06.:bd04/06/2009:svnAcer:pnAspire5810T:pvrV1.06.:rvnAcer:rnAspire5810T:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: Aspire 5810T
dmi.product.version: V1.06.
dmi.sys.vendor: Acer

[Matti Viljanen (direc85)]

Same problem here (almost), see bug #428054. This seems to affect pretty many Intel users... Anyone with laptop powered by modern Intel GPU with working backlight?

[Matti Viljanen (direc85)]

Bug #428054 is now closed, but the problem wasn't the same. Could try running "xrandr --prop" in console, and post the items listed below BACKLIGHT_CONTROL?

[Leann Ogasawara (leannogasawara)]

Care to take a look at https://wiki.ubuntu.com/Hotkeys/Troubleshooting and gather additional info regarding key events being generated or not. Thanks!

[Dan Trevino (dantrevino)]

xev does in fact register the correct event. This is a gnome-settings-manager or gnome-power-manager issue.

[Matti Viljanen (direc85)]

There has been a driver update, -intel is now 2.9.0-based. Could you update packages, and see if there's any difference? That update fixed backlight controls for me - works OOTB as expected...

[Chris Coulson (chrisccoulson)]

Thank you for your bug report. gnome-settings-daemon doesn't have anything to do with brightness keys though, so I'm reassigning to gnome-power-manager.

Please kill the currently running instance of gnome-power-manager, run the following, press your brightness keys a few times and then attach the resulting log:

gnome-power-manager --debug 2>&1 | tee gpm.log

Thanks

[Dan Trevino (dantrevino)]

this is the output of "gnome-power-manager --debug". only contains gdk_window_foo errors.

[nomnex (nomnex)]

Any news about FN keys brightness not working (and an ev. patch) on Aspire 5810 Timeline. I am planning purchasing the model running Karmic.

[executorvs (executorvs)]

so the brightness keys seem to work with the latest bios update. the catch, which I would like to see if anyone else encounters, is that when you use them the touchpad stops working. can anyone else confirm this?

[executorvs (executorvs)]

They put out a patch for the bios update I mentioned. it makes no difference.

[nomnex (nomnex)]

executorvs, how do you update the BIOS running Ubuntu as a single OS? Do you have a dual boot?

[Sami Liedes (sliedes)]

I've got stock kernel 2.6.32.3 and Debian (not Ubuntu), so all this FWIW.

On my 5810TZ, xrandr --prop does not show BACKLIGHT_CONTROL. Backlight keys do not work, but when booting *without* nomodeset (some posts on the Internets suggest that "nomodeset acpi_backlight=vendor" fixes this, but for me it doesn't), it does show "Backlight" and "BACKLIGHT" (if booting *with* acpi_backlight=vendor, even these settings disappear):

------------------------------------------------------------
$ xrandr --prop
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 345mm x 194mm
        EDID:
                00ffffffffffff0030e4020200000000
                00130103802313780a28659759548e27
                1e505400000001010101010101010101
                010101010101561d56c6500020303020
                350059c2100000190000000000000000
                00000000000000000000000000fe004c
                4720446973706c61790a2020000000fc
                004c503135365748332d544c41310039
        BACKLIGHT: 3 (0x00000003) range: (0,9)
        Backlight: 3 (0x00000003) range: (0,9)
        scaling mode: Full
                supported: None Full Center Full aspect
   1366x768 60.0*+
   1360x768 59.8
   1024x768 60.0
   800x600 60.3
   640x480 59.9
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
------------------------------------------------------------

Doing "xrandr --output LVDS1 --set Backlight 5" (or whatever number from 0..9) doesn't seem to change anything, but I noticed by accident that after setting the value using that command, pressing the backlight setting keys on the keyboard (Fn+arrow keys) sets then the backlight to the brightness set with xrandr.

The same actually can be done via /proc:

------------------------------------------------------------
root@lap:/proc/acpi/video/OVGA# ls -l
total 0
dr-xr-xr-x 2 root root 0 Jan 14 01:58 DD01
dr-xr-xr-x 2 root root 0 Jan 14 01:58 DD02
dr-xr-xr-x 2 root root 0 Jan 14 01:58 DD03
dr-xr-xr-x 2 root root 0 Jan 14 01:58 DD04
dr-xr-xr-x 2 root root 0 Jan 14 01:58 DD05
-rw-r--r-- 1 root root 0 Jan 14 01:58 DOS
-r--r--r-- 1 root root 0 Jan 14 01:58 info
-rw-r--r-- 1 root root 0 Jan 14 01:58 POST
-r--r--r-- 1 root root 0 Jan 14 01:58 POST_info
-r--r--r-- 1 root root 0 Jan 14 01:58 ROM
root@lap:/proc/acpi/video/OVGA# ls DD0*/brightness
DD01/brightness DD02/brightness DD03/brightness DD04/brightness DD05/brightness
root@lap:/proc/acpi/video/OVGA# cat DD*/brightness
<not supported>
levels: 10 20 30 40 50 60 70 80 90 100
current: 10
<not supported>
<not supported>
<not supported>
root@lap:/proc/acpi/video/OVGA# echo 50 >DD02/brightness
------------------------------------------------------------
[and now pressing Fn+brightness key immediately sets the display brightness to 50.]

/proc/acpi/video/DD02/brightness always reflects the brightness as set by xrandr, but it only ...

[executorvs (executorvs)]

Lucid with current updates shows the same behavior as karmic on my 5810TZ. When I use the brightness buttons on the arrow keys, the brightness shifts with the first tap of a key and then the system freezes completely.