Public bug reported:
A customer of mine gave me his old notebook because he bought a new one.
I trow in a new HDD and now the laptop is running an up to date Xubuntu
13.10 64bit. Everithing is working fine exept for the brightness
control: when I press the appropriate keys on keyboard the slider
appears on the upper right corner of the screen but even if it changes
the setting has no effect on the system . The notebook I have has an
Intel X3100 integrated video
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960
Integrated Graphics Controller (primary) (rev 0c)
I tried different combinations on grub but no one resolved the issue.
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.
------------------
effe@Vostro1310:/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/dell_backlight
1
7
1
------------------
If I increase the backlight the files are correctly updated:
------------------
/sys/class/backlight/dell_backlight
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/brightnessup BRTUP 00000086 00000000 K
video/brightnessup BRTUP 00000086 00000000 K
video/brightnessdown BRTDN 00000087 00000000 K
video/brightnessdown BRTDN 00000087 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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: acpi amd64 apport-bug brightness saucy xubuntu
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https://bugs.launchpad.net/bugs/1281176
Title:
Dell Vostro 1310 (and possibly 1510/1710) no brightness control on
(x)ubuntu 13.10
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