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[BemNum <bemnum@xxxxxxxxx>]

Hello,

I can also confirm that on Asus R510L with Nvidia GeForce 840M I can
change brightness via "System Settings" -> Brightness and lock" ->
"Brightness" slider.

Slider works on Ubuntu 14.04:
- kernel 3.13.0-43-generic #72-Ubuntu
- nvidia driver nvidia-331-updates 331.113-0ubuntu0.0.4

But I cannot change brightness using the fn keys.

Regards,

PS.
Maybe now it is a prolem reported in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1400068 ?

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-graphics-drivers-319 in Ubuntu.
https://bugs.launchpad.net/bugs/1263498

Title:
  Asus G75VX, can not modify brightness

Status in nvidia-graphics-drivers-319 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-331 package in Ubuntu:
  Confirmed

Bug description:
  1. Ubuntu 13.10
  2. N: Unable to locate package nvidia-graphics-drivers-319
  3. I expected that when I changed the brightness level for my laptop monitor that the brightness would also change.
  4. Instead, the brightness always stays at 100%

  I have tried every configuration of grub that I have seen online or
  been asked to try on freenode.net #ubuntu by 3 different people.
  Nothing seems to fix this problem. The file for the brightness is
  always updated but it is like the driver never tells the hardware to
  change the brightness.

  I have tried Tried :
  acpi_backlight=vendor
  pcie_aspm=force
  acpi_osi='!Windows 2012'

  Option "RegistryDwords" "EnableBrightnessControl=1"

  echo 50 > /sys/class/backlight/acpi_video0/brightness
  echo 50 > /sys/class/backlight/acpi_video1/brightness
  echo 50 > /sys/class/backlight/asus/brightness

  nothing seems to work (the files are of course updated but the monitor
  rests at 100% brightness)

  I have also tried the XOrg-server and nvidia-304 drivers. They all
  have the same result, nothing.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: nvidia-319 319.32-0ubuntu7
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  Uname: Linux 3.11.0-14-generic x86_64
  NonfreeKernelModules: wl nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  Date: Sun Dec 22 16:16:35 2013
  InstallationDate: Installed on 2013-10-27 (55 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MarkForUpload: True
  SourcePackage: nvidia-graphics-drivers-319
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.modprobe.d.nvidia.319.hybrid.conf: [deleted]

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