Asus G75VX, can not modify brightness

[David Danneker]

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]

[David Danneker (danneker)]

Correct apt-cache policy :

nvidia-319:
  Installed: 319.32-0ubuntu7
  Candidate: 319.32-0ubuntu7
  Version table:
 *** 319.32-0ubuntu7 0
        500 http://fr.archive.ubuntu.com/ubuntu/ saucy/restricted amd64 Packages
        100 /var/lib/dpkg/status

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[pad (pad-lee)]

Hello, i have the same problem with the same hardware (Asus G75VX, Nvidia GTX 670 MX) and found no solution!

My system is a Ubuntu 14.04 with the following nvidia driver Version: 331.38-0ubuntu7

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[BemNum (bemnum)]

Hello,

I have Asus R510L with Nvidia GeForce 840M and the problem exists. I use Ubuntu 14.04 and Unity.
1) I cannot modify brightness using Fn keys.
2) I also cannot change brightness using "System Settings" -> "Brightness and lock" -> "Brightness" slider

% uname -a
Linux lap 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
% sudo lspci -v| sed -ne '/NVIDIA/,/^$/ { p; }'
04:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)
    Subsystem: ASUSTeK Computer Inc. Device 131d
    Flags: bus master, fast devsel, latency 0, IRQ 70
    Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
    Memory at e0000000 (64-bit, prefetchable) [size=256M]
    Memory at f0000000 (64-bit, prefetchable) [size=32M]
    I/O ports at c000 [size=128]
    [virtual] Expansion ROM at f7000000 [disabled] [size=512K]
    Capabilities: [60] Power Management version 3
    Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [78] Express Endpoint, MSI 00
    Capabilities: [100] Virtual Channel
    Capabilities: [250] Latency Tolerance Reporting
    Capabilities: [258] L1 PM Substates
    Capabilities: [128] Power Budgeting <?>
    Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
    Kernel driver in use: nvidia

% COLUMNS=120 dpkg -l | grep nvidia
ii nvidia-331-updates 331.38-0ubuntu7.1 amd64 NVIDIA binary driver - version 331.38
ii nvidia-common 1:0.2.91.7 amd64 transitional package for ubuntu-drivers-common
ii nvidia-libopencl1-331-up 331.38-0ubuntu7.1 amd64 NVIDIA OpenCL Driver and ICD Loader library
ii nvidia-prime 0.6.2 amd64 Tools to enable NVIDIA's Prime
ii nvidia-settings 331.20-0ubuntu8 amd64 Tool for configuring the NVIDIA graphics driver

Information from nvidia-xconfig:
  Operating System: Linux-x86_64
  NVIDIA Driver Version: 331.38

Let me know if further information is needed.

If someone knows the workaround I will be grateful for information.

Best Regards,
Paweł

[pad (pad-lee)]

Hello, now it is possible for me to control the brightness via "System Settings" -> Brightness and lock" -> "Brightness" slider!

But the fn button still not work (except once a time with the kernel parameter "acpi_osi=" until to the next reboot).

Since Autum it works over die Brightness slider, but i don't no why... maybe due to the newer nvidia driver (331.38 -> 331.113)...

 % uname -a

Linux G75VX 3.13.0-40-generic #69-Ubuntu SMP Thu Nov 13 17:53:56 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

% sudo lspci -v| sed -ne '/NVIDIA/,/^$/ { p; }'

01:00.0 VGA compatible controller: NVIDIA Corporation GK104M [GeForce GTX 670MX] (rev a1) (prog-if 00 [VGA controller])
 Subsystem: ASUSTeK Computer Inc. Device 21ab
 Flags: bus master, fast devsel, latency 0, IRQ 46
 Memory at f4000000 (32-bit, non-prefetchable) [size=16M]
 Memory at c0000000 (64-bit, prefetchable) [size=256M]
 Memory at d0000000 (64-bit, prefetchable) [size=32M]
 I/O ports at e000 [size=128]
 [virtual] Expansion ROM at f5000000 [disabled] [size=512K]
 Capabilities: [60] Power Management version 3
 Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
 Capabilities: [78] Express Endpoint, MSI 00
 Capabilities: [b4] Vendor Specific Information: Len=14 <?>
 Capabilities: [100] Virtual Channel
 Capabilities: [128] Power Budgeting <?>
 Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
 Kernel driver in use: nvidia

01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1)
 Subsystem: ASUSTeK Computer Inc. Device 2116
 Flags: bus master, fast devsel, latency 0, IRQ 17
 Memory at f5080000 (32-bit, non-prefetchable) [size=16K]
 Capabilities: [60] Power Management version 3
 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
 Capabilities: [78] Express Endpoint, MSI 00
 Kernel driver in use: snd_hda_intel

% lspci -v | perl -ne '/VGA/../^$/ and /VGA|Kern/ and print'

01:00.0 VGA compatible controller: NVIDIA Corporation GK104M [GeForce GTX 670MX] (rev a1) (prog-if 00 [VGA controller])
 Kernel driver in use: nvidia

% dpkg --status nvidia-331 | grep Version

Version: 331.113-0ubuntu0.0.4

% dpkg -l nvidia*

ii nvidia-331 331.113-0ubu amd64 NVIDIA binary driver - version 33
ii nvidia-331-uvm 331.113-0ubu amd64 NVIDIA Unified Memory kernel modu
un nvidia-common <keine> <keine> (keine Beschreibung vorhanden)
un nvidia-driver- <keine> <keine> (keine Beschreibung vorhanden)
ii nvidia-libopen 331.113-0ubu amd64 NVIDIA OpenCL Driver and ICD Load
ii nvidia-opencl- 331.113-0ubu amd64 NVIDIA OpenCL ICD
un nvidia-persist <keine> <keine> (keine Beschreibung vorhanden)
ii nvidia-prime 0.6.2 amd64 Tools to enable NVIDIA's Prime
ii nvidia-setting 331.20-0ubun amd64 Tool for configuring the NVIDIA g
un nvidia-setting <keine> <keine> (keine Beschreibung vorhanden)
un nvidia-vdpau-d <keine> <keine> (keine Beschreibung vorhanden)

Kind regards,

patrice

[BemNum (bemnum)]

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 ?

[pad (pad-lee)]

Hello, thanks for your report!

Due to your link, i have testet die "acpi_osi= " parameter again and against my first description (i was able to adjust die brightness via fn keys once a time #9) the brightness stand still on 100%, but the difference to other parameters is that the notification daemon show me the reaction.

The problem is may a clash between backlight providers ... https://bugs.freedesktop.org/show_bug.cgi?id=81762 (Comment 6).

Here i found more information about two patches https://bugzilla.kernel.org/show_bug.cgi?id=70241 (Comment 94,92).

But it seems there is no proper solution for me so far ... :(

Regards,

patrice