Federico Leoni, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1281176/comments/10
regarding this being due to hardware failure. For future reference you
can manage the status of your own bugs by clicking on the current status
in the yellow line and then choosing a new status in the revealed drop
down box. You can learn more about bug statuses at
https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time
to report this bug and helping to make Ubuntu better. Please submit any
future bugs you may find.
** Changed in: linux (Ubuntu)
Status: Triaged => Invalid
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1281176
Title:
8086:2a02 [Dell Vostro 1310] no brightness control on (x)ubuntu 13.10
/ 14.04
Status in “linux” package in Ubuntu:
Invalid
Bug description:
When I press the appropriate keys on keyboard (Fn+up/Fn+down) the
slider appears on the upper right corner of the screen but the
brightness doesn't change.
Problem is I have not intel_backlight on /sys/class/backlight folder
but just acpi_video0 or dell_backlight (if I set acpi_backlight=vendor
on grub). Since I don't have intel_backlight folder I can't apply many
of the workaround found here and there.
Reported upstream at http://marc.info/?l=linux-
acpi&m=139290477319769&w=2 .
WORKAROUND: /sys/class/backlight$ for i in /sys/class/backlight/*; do
echo -e "\n $i"; cat $i/{brightness,max_brightness,actual_brightness};
done
/sys/class/backlight/acpi_video0
1
7
1
If I increase the backlight via funcion keys or terminal the files are
correctly updated:
$ echo 7 | sudo tee /sys/class/backlight/acpi_video0/brightness
/sys/class/backlight/acpi_video0
7
7
7
acpi_listen works just on new mainline kernel 3.13.2 (tried bot generic and
lowlatency) on stock kernel there isn't output at all:
video/brightnessup BRTUP 00000086 00000000 K
video/brightnessdown BRTDN 00000087 00000000 K
Now I'm using xrandr to change the brightness:
xrandr --output LVDS1 --brightness 0.5
but since xrandr is a software overlay my battery life is horrible,
I'm stuck on 100% brightness. Beside this, sometimes the brightness
slider appears spontaneously without pressing any keys but again with
no effect.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-15-generic 3.11.0-15.25
ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: effe 1526 F.... pulseaudio
CurrentDmesg:
[ 102.704995] ERROR @wl_dev_intvar_get : error (-1)
[ 102.705003] ERROR @wl_cfg80211_get_tx_power : error (-1)
Date: Mon Feb 17 13:27:10 2014
HibernationDevice: RESUME=UUID=d0ee674f-0ea7-47e1-ba6f-1a849ba35941
InstallationDate: Installed on 2014-02-10 (6 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
MachineType: Dell Inc. Vostro1310
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic
root=UUID=44ccbe21-7e45-468c-b942-1773a32943b0 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.11.0-15-generic N/A
linux-backports-modules-3.11.0-15-generic N/A
linux-firmware 1.116.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/18/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A15
dmi.board.name: 0K866H
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnDellInc.:bvrA15:bd03/18/2009:svnDellInc.:pnVostro1310:pvrNull:rvnDellInc.:rn0K866H:rvr:cvnDellInc.:ct8:cvrN/A:
dmi.product.name: Vostro1310
dmi.product.version: Null
dmi.sys.vendor: Dell Inc.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1281176/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
