documentation-packages team mailing list archive
Mailing list archive
[Bug 1545266] Re: screen brightness slider has no effect
Supposedly this is answered, but I think it was because of the duplication.
Here's the output of this command
$sudo dmidecode -t 1; lsb_release -a; uname -a
# dmidecode 2.12
SMBIOS 2.7 present.
Handle 0x0001, DMI type 1, 27 bytes
Manufacturer: Dell Inc.
Product Name: OptiPlex 7010
Serial Number: .............
Wake-up Type: Power Switch
SKU Number: OptiPlex 7010
Family: Not Specified
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Linux kevin-desktop 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
You received this bug notification because you are a member of
Documentation Packages, which is subscribed to ubuntu-docs in Ubuntu.
screen brightness slider has no effect
Status in unity-control-center package in Ubuntu:
Trusty Tahr 14.04 LTS, seems to be fully updated
f.lux also has no effect.
Also when i try to do
sudo echo 50 > /sys/class/backlight/acpi_video0/brightness
then it says 'bash: brightness: permission denied'.
(From this page: http://pastebin.com/HzzHrS2g).
product: OptiPlex 7010 (OptiPlex 7010)
product: Intel(R) Core(TM) i3-3240 CPU @ 3.40GHz
description: Host bridge
product: Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller
vendor: Intel Corporation
description: VGA compatible controller
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
I would love to help provide some more help on my dual monitor setup.
I found this documentation: https://wiki.ubuntu.com/X/Config/Resolution
It says I should run $gnome-display-properties. Seems to be out of date.
gnome-display-properties: command not found
I guess it would be annoying to say it's a security vulnerability
although if my screen isn't dim someone could more easily look through
the window and see what I am typing on the screen.
To manage notifications about this bug go to: