[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-10-06 Thread Mike Grabowski
I had just recently done a clean install of Ubuntu-Mate 15.04 and after
loading the Nvidia driver, again saw this issue. Following the below
instructions seems to have completely fixed it for me. I had previously
tried many other suggestions/recommendations with minimal to no success.
(I have a Lenovo W510 Laptop)

<---
I was able to get my brightness keys working on my Lenovo W530 on Ubuntu 12.04.

These days X automatically configures itself, so creating an xorg.conf
file might make your system inflexible. Instead you can add a section to
a file in /usr/share/X11/xorg.conf.d/ and X will include that section in
the configuration that it automatically generates.

So to get the screen brightness keys working with your Nvidia graphics
card, create a file in the xorg.conf.d directory, e.g:

sudo gedit /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf

Paste the following into the file:

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName  "Quadro K1000M"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection

Log out and log back in, or reboot, and your brightness keys should now
work!

--->

These instructions were found here:
https://askubuntu.com/questions/76081/brightness-not-working-after-
installing-nvidia-driver

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-10-06 Thread Hans Deragon
Why is this bug report invalid?  I still have the problem in 14.04.03
LTS.  Who decides to change it?

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-10-06 Thread Hans Deragon
Thank you Ph-Hsu Lin for the clarification.  Users who want to track
this issue with a new report, follow Bug #1389215.

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-10-06 Thread Po-Hsu Lin
For those who still affected by this bug, please note that discussion in
a Invalid bug tend to be IGNORED.

This bug was set to "Invalid" due to this version of Ubuntu is no longer 
supported.
To this point we're unable to know if it's fixed in between and broken again, 
or it's just not working from the beginning.

Also, this kind of bug needs log file for investigation, it's unreliable
to use such an old bug for it, not mention log files from a third person
(as the configuration could be different)

Please OPEN A NEW BUG [1] if your system still affected by this, you can
do it with `ubuntu-bug linux` command in a terminal (Ctrl + Alt + t)

[1] https://help.ubuntu.com/community/ReportingBugs

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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Re: [Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-06-26 Thread Zygmunt Krynicki
If anyone cares, I have a 880M w510 lenovo laptop running vivid and
yes, this is still broken. If anyone needs some extra details I can
provide that.

On Fri, Jun 26, 2015 at 6:07 PM, Martin Spacek launch...@mspacek.mm.st wrote:
 there is plenty of similar reports around and forums discussions about
 that.

 Why not post them here?

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 report.
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 Title:
   Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
   no longer function while using proprietary drivers

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-06-26 Thread Martin Spacek
there is plenty of similar reports around and forums discussions about
that.

Why not post them here?

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-06-26 Thread Martin Spacek
What version is no longer supported? Really? We need to open up a new
bug report for a bug that's 5 years old and counting? This has never
been fixed, and likely never will be by nvidia. I'm currently on the
last supported version, 340.76, in Xubuntu 14.04. Still doesn't work.
But we *should* keep a bug report open on this, at least as a monument
to nvidia's apathy.

** Changed in: nvidia-graphics-drivers (Ubuntu)
   Status: Invalid = Confirmed

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-06-26 Thread dino99
@Martin,

5 years old, and no one have taken time to glance at it. And the fact it is a 
mix of kernel/drm/DE issue, not a graphic driver one.
So reopening that report is useless as it reffer to old 
languages/compiler/kernel/default settings/

there is plenty of similar reports around and forums discussions about
that.

** Changed in: nvidia-graphics-drivers (Ubuntu)
   Status: Confirmed = Invalid

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-06-26 Thread dimovnike
Asus G55VW laptop,  GeForce GTX 660M], vivid - still broken! I would
provide details too if needed.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-06-26 Thread Hans Deragon
Copying here my own observations about the problem, from my previous bug
report #1389215, now marked as a duplicate of this one.

---

Brightness controls are not working in Unity / Xorg. When pressing the
keys fnhome and fnend on my Lenovo W510, I see the indicator on
the screen showing the level of brightness changing, so key mapping is
not the problem. However, the brightness is not changing.

On the kernel level, I have the single following device:

# cd /sys/class/backlight
# ls -l
total 0
lrwxrwxrwx 1 root root 0 Nov 3 17:16 acpi_video0 - 
../../devices/pci:00/:00:03.0/:01:00.0/backlight/acpi_video0

When playing with the fnhome and fnend, the value of
/sys/class/backlight/brightness changes accordingly. The screen
brightness does not change.

Performing:

# echo 10 brightness

...does not have any effect (regardless of the value provided, 10 being
just an example).

WORKAROUND

There is an odd workaround. Simply go to the console using
CTRLALTF1 and using the fnhome and fnend keys, brightness
then changes. Return to Unity / Xorg with CTRLALTF7 and the
selected brightness persists.

NON WORKING WORKAROUND

On the web, I read that adding:

Option RegistryDwords EnableBrightnessControl=1'

in xorg.conf might fix the problem. I do not have an xorg and when I let
the proprietary Nvidia driver generate one and add this option, X does
not start anymore.

Ubuntu 14.04.1 LTS with latest updates as of this writing.



I tried under KDE Plasma 5.1 (Neon) and still I could not change the
brightness of the backlight.

However, the CLI commands that fail in a terminal running under an Xorg
session work flawlessly under a console (CTRLALTF1).

cd /sys/class/backlight/acpi_video0

echo 5 brightness # Works under the console!
echo 10 brightness # Works under the console!

This all suggest that somehow, Xorg is inhibiting the brightness
control.



Found out that brightness control works fine with Nouveau driver, but
not with Nvidia proprietary driver.



Discovered another behaviour. If you play with the brightness controls
under Xorg, nothing changes. However, suspend the computer and resume
it, and the brightness will be setup to the last setup you left when
playing with the brightness controls. Thus, the value in the kernel
persists.

You can also test this with the CLI:

# cd /sys/class/backlight/acpi_video0
# echo 10 brightness # Nothing happens
# cat actual_brightness
10
# echo 5 brightness # Nothing happens
# cat actual_brightness
5

suspend computer
resume computer

Now the brightness level is set to 5 and the screen finds itself at that
level.

In the backend, the controls are changing the brightness levels, it is
just that during an Xorg Session with NVIDIA proprietary drivers, the
screen's real brightness is not updated. As if the hardware signal to
the screen is never sent, except when in the console or upon resume.



I replaced the official proprietary NVIDIA driver nvidia-331 with
nvidia-340 from xorg-edgers and the problem persists. nvidia-340
(340.76) is the latest driver for the legacy card Quadro FX 880M of my
Lenovo W510.



I tried acpi_backlight=vendor on grub to novail. It even stopped working
on the TTY. Putting grub as it was restored the functionality back in
the TTY. Under X11, the problem persists.



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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2015-06-26 Thread dino99
That version is no more supported; please open a new  bug report if the
actual archive found version also has the same issue.

** Changed in: nvidia-graphics-drivers (Ubuntu)
   Status: Confirmed = Invalid

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2014-06-30 Thread Martin Spacek
For my future reference, and possibly others:

After installing Xubuntu 14.04 on my Thinkpad W510, generating
/etc/X11/xorg.conf with nvidia-settings and adding the
EnableBrightnessControl line to the Devices section and rebooting did
not work (it worked in Xubuntu 12.10). Instead, I had to create a
/usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf file and add the
Devices section to that. It's described in this blog post:

http://blog.pearce.org.nz/2012/08/enabling-external-monitor-on-
lenovo.html

You should probably change the BoardName to whatever it is for your
system (mine is Quadro FX 880M).

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2014-04-01 Thread Martin Spacek
I just tried messing with nvidiabl for my Thinkpad W510, without
success. I've opened a bug report here:

https://github.com/guillaumezin/nvidiabl/issues/89

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2013-11-11 Thread Dana Goyette
On my workplace Thinkpad W530 (Quadro K1000M in discrete-only mode), 
EnableBrightnessControl=1 does in fact expose a working Backlight property 
via xrandr.
Unfortunately, Gnome is looking for a property called BACKLIGHT, and falls 
back to /sys/class/backlight when it's not found.
See https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/947919

I've also managed to get the nvidiabl module to work, by setting the
'type' and 'max' parameters.

Gnome prefers backlights of type platform over type raw.   The non-
working thinkpad_screen is type platform, and nvidia_backlight
defaults to raw.   Setting nvidia_backlight to platform fixes this.

My approach for figuring out the proper value of 'max':

1. Start with EnableBrightnessControl=1 set.

2. Load nvidiabl with some value (such as 0x1000) for 'max'.(If your 
backlight turns entirely off, doing step 3 should turn it back on.)
modprobe nvidiabl max=number

3.  Use xbacklight to change brightness to some lower value, then back to 100.  
(If you just try to reapply 100, it won't work.)
xbacklight -set 50; xbacklight -set 100

4. Check what the reported 'actual_brightness' and 'brightness' values are.
grep . /sys/class/backlight/nvidia_backlight/*brightness

5.  If brightness and actual_brightness both equal the max_brightness value, 
you've found a 'max' that works.
If actual_brightness and brightness are below max_brightness, the guess for 
'max' was too high.
If they're above max_brightness, the guess for 'max' was too low.

6.  As a final sanity check, I verified that the brightness slider in
gnome works smoothly (that is, brightness changes occur over the whole
range).

7.  Save that max in a module config file; I tend to put all my personal 
options in /etc/modprobe.d/custom.conf
options nvidiabl type=platform max=value you found

Now I just need to remove EnableBrightnessControl, since as it is now,
the nvidia driver reverts to the xbacklight value (100) whenever I click
a link in an e-mail.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2013-04-17 Thread Martin Spacek
Xubuntu 12.10 updated to nvidia 304.88 a day or so ago, and now
brightness controls are even more uneven than before. I've tried
regenerating xorg.conf using nvidia-settings, and re-adding [Option
RegistryDwords EnableBrightnessControl=1] to the Device section, but
that hasn't helped. I also tried nvidia 313.30 from xorg-edgers, but
brightness controls seemed to be just as uneven.

3 years and this still hasn't been fixed. I'm waiting hopefully for
nouveau to finally implement proper power management implemented, so I
can ditch this nvidia crap for good. Linus perfectly expressed my
frustration with this company with his simple gesture:

http://www.youtube.com/watch?v=YxHqi8tx048

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-31 Thread Martin Spacek
I just tried installing 304.60 from
https://launchpad.net/~noobslab/+archive/nvidia-quantal on my fresh
install of Xubuntu 12.10 amd64 with no xorg.conf. Brightness controls
did *not* work, as usual, so I'd say it isn't fixed.

Note that the packages at that PPA are labelled as
304.60-0ubuntu1~precise~xup2, so maybe they're not ideal for quantal,
but they do seem to work. I couldn't find any other PPA with quantal
packages for 304.60. At least not yet.

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-23 Thread Tom Gelinas
I've removed all my X11 quirks and tested 304.60, the backlight controls
seem to work. They're still really buggy, but no effort is needed to get
them working. Packages meant for Ubuntu 12.04 arr available here:
https://launchpad.net/~ubuntu-x-swat/+archive/x-updates?field.series_filter=precise
. Please let me know if I was sloppy in testing this, but I think it's
fixed.

Brendan Donegan:  There are no show-stopping bugs with the open-source
drivers, but there are some features that are unsupported, such as HDMI
audio support, clocking  adjustments, VDPAU support. Those last 2 have a
significant impact on battery life, but the machine's still usable. The
T510's certification makes sense to me, thanks for responding!

** Changed in: ubuntu-certification
   Status: Incomplete = Invalid

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-19 Thread Brendan Donegan
When certifying systems with Ubuntu, we only test with the open-source
graphics drivers installed by Ubuntu. If these do not work properly then
we will try with the proprietary drivers. So this particular system has
never been tested by us with the proprietary drivers, and it is correct
to refer to it as being certified since it apparently works fine with
the open-source ones. Is there a particular reason why the proprietary
NVIDIA driver is desirable over nouveau for this system?

** Changed in: ubuntu-certification
   Status: New = Incomplete

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-18 Thread Martin Spacek
The latest certified nvidia blob (304.60) mentions this:

Added support for the Backlight RandR output property for configuring
the brightness of some notebook internal panels.

http://www.nvidia.com/object/linux-display-amd64-304.60-driver.html

Could it be this is finally the fix we've been waiting for? Anyone tried
this latest version yet? I just installed Xubuntu 12.10 and with nvidia
304.51 I still need to add EnableBrightnessControl=1 to xorg.conf, and
the brightness increments on my Thinkpad W510 are large and uneven, as
always.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-18 Thread Tom Gelinas
Not to say that /etc/X11/xorg.conf has been deprecated, but: The X11
Quirks files are a quick way to fix backlight control issues. I have
smashed/replaced my LCD panel since reporting this bug, and no longer
hear a buzzing noise when changing brightness while forcing the
proprietary NVIDIA driver to control brightness.

For X11 quirk-related documentation, please read /usr/share/ubuntu-
drivers-common/quirks/lenovo_thinkpad , and also
https://wiki.ubuntu.com/X/Quirks .

You can make a new quirk file that applies to your laptop. This sucks,
but anyone can submit a patch. (Bad answer). Good luck!

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-18 Thread Tom Gelinas
Also, Martin: Brightness increments are still uneven for me. I'm
terrified of hitting brightness up/down hotkeys too quickly, because I
get a frozen display. No kernel panic though, I'll see if I can acess my
laptop through SSH next time this happens. So anoying, no satisfaction!

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-18 Thread Tom Gelinas
This Ubuntu Advantage program has failed us, I have and will probably
whine again here:
http://www.ubuntu.com/certification/hardware/201101-7181/

The Lenovo Thinkpad T510 laptop has been awarded the status of
Certified for Ubuntu.

Follow-up! I'm not a paying customer, but I'll whine if I can't whine.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-10-18 Thread Tom Gelinas
Retraction: I meant Ubuntu Certification program, not Ubuntu
Advantage. Different people, sorry!

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2012-09-26 Thread Scott Lanham
I have an Asus G55VW and backlight hotkeys do not work and neither does
trying to directly manipulate /sys/class/backlight ... I have tried
adding Option RegistryDwords EnableBrightnessControl=1  and
changing the kernel boot params but with no success.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-12-30 Thread Jarmo Isotalo
Yes, I have also this issue on Fujitsu E8420 BUT I have managed to get it 
working and wanted to publish my  solution here. 
Im running ubuntu 11.10 and I have installed that additional driver #2, NVIDIA 
accelerated graphics driver (post-release updates) (version 173-updates)

So This is what I did to get screen brightness buttons working:

I run sudo nvidia-xconfig  to generate good xorg.conf file.
then I added this following line to there under device 
Option RegistryDwords EnableBrightnessControl=1
like this:

Section Device
Identifier Device0
Driver nvidia
VendorName NVIDIA Corporation
Option RegistryDwords EnableBrightnessControl=1 
EndSection

And I hava my xorg.conf as an attachment:


** Attachment added: Working copy of xorg.conf for Fujitsu E8420 with fn 
screen brightnes
   
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/562005/+attachment/2651761/+files/xorg.conf

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-11-23 Thread Karel Kozlik
I can confirm that this problem does not occur on thinkpad only, but
also on Fujitsu-Siemens E8420

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-11-22 Thread Tom Gelinas
I market this bug as affecting the Ubuntu-Certification, referencing the
Certified status of the Lenovo ThinkPad T510 whose backlight does not
properly function. https://answers.launchpad.net/ubuntu-
certification/+question/163597

** Also affects: ubuntu-certification
   Importance: Undecided
   Status: New

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-11-01 Thread Tom Gelinas
The nvidiabl driver now detects ThinkPad T510s with model 4313CTO. This
will not allow gnome-power-manager to control the backlight, but at
least the keys will worksort of. With autodetected values,
brightness can be turned down all the way, but can only be set to a
proper maximum by switching to a VT and turning the brightness down a
notch. If anyone would like to play around with backlight values, the
instructions below will get them set up. nvidiabl's source can be
modified to work with other ThinkPad models as well.

ACPI backlight control must be set to vendor, the thinkpad_acpi module's
brightness controls must be disabled and the brightness keys must be
bound using acpi events.

ACPI backlight controls can be set to vendor by setting
'GRUB_CMDLINE_LINUX_DEFAULT=acpi_backlight=vendor' in
/etc/default/grub and then running update-grub.

thinkpad_acpi's brightness controls can be disabled by creating
/etc/modprobe.d/thinkpad_acpi.conf and adding the line options
thinkpad_acpi brightness_enable=0.

nvidiabl source can be obtained from
https://github.com/guillaumezin/nvidiabl , then installed by dkms. The
scripts nvidia_backlight_down.sh and nvidia_backlight_up.sh should
be copied from the scripts folder to /etc/acpi.

Then the brightness keys can be bound to those scripts by
creating/filling the following files:

/etc/acpi/events/lenovo-4313cto-brightness-down
event=video LCD0 0087 
action=/etc/acpi/nvidia_backlight_down.sh

/etc/acpi/events/lenovo-4313cto-brightness-up
event=video LCD0 0086 
action=/etc/acpi/nvidia_backlight_up.sh

ACPI events were determined using acpi_listen.


Alternately, there are .deb packages that install nvidiabl via dkms available 
from https://github.com/guillaumezin/nvidiabl/downloads . Currently only 
4313CTO models have backlight support by default, but it's only a matter of 
adding PCI IDs and some basic detection stuff. That stuff can be passed when 
the module is loaded, check the docs for details.

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-08-02 Thread Martin Spacek
Unsurprisingly, this problem remains in the latest ubuntu-x-swat nvidia
driver, 280.13. There seems to be some kind of a fairly recent problem
with nvidia backlight controls in the mactel community, with a few bugs
filed (like #764195).

A comment mentioned some success adding the mactel PPA (ppa:mactel-
support/ppa) and installing nvidia-bl-dkms:

https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-
drivers/+bug/764195/comments/11

 Thought it might be worth a shot, so I tried this on my Thinkpad W510
with Quadro FX 880M (based on GT 330M apparently), but backlight
behaviour didn't change with the nvidia blob, even after reboot.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-07-04 Thread Tom Gelinas
Brendan Donegan of Canonical responded to the request I made to the
Ubuntu Hardware Certification Programme, acknowledged the problem and
said a T510 would be tested. At the very least, the problem will be
noted. Considering I don't pay for support, that's a pretty good
response!

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-07-03 Thread Tom Gelinas
I have linked this bug to Ubuntu Hardware Certification.
https://answers.launchpad.net/ubuntu-certification/+question/163597

Hopefully they will treat this bug with respect. Switching between text
mode VT and a Nvidia-proprietary powered X server is not stable!

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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Re: [Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-07-03 Thread Simon Hirscher
Exactly. Plus: Switching back and forth several times results in the X
server hanging (or rather lagging) for some minutes…

On Sun, Jul 3, 2011 at 13:28, Tom Gelinas 562...@bugs.launchpad.net wrote:
 I have linked this bug to Ubuntu Hardware Certification.
 https://answers.launchpad.net/ubuntu-certification/+question/163597

 Hopefully they will treat this bug with respect. Switching between text
 mode VT and a Nvidia-proprietary powered X server is not stable!

 --
 You received this bug notification because you are subscribed to the bug
 report.
 https://bugs.launchpad.net/bugs/562005

 Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

 Status in “nvidia-graphics-drivers” package in Ubuntu:
  Confirmed

 Bug description:
  The brightness controls of laptops with NVIDIA NVS 3100M or Quadro FX
  880M GPUs work  while running Nouveau or when using a text mode VT,
  but not while running X and using proprietary NVIDIA drivers.  It is
  possible to force the NVIDIA driver to control the backlight by adding
  [Option RegistryDwords EnableBrightnessControl=1] to the Devices
  section of xorg.conf . While this allows the backlight to be
  controlled, the increments are inconsistent and often result in a
  buzzing noise from the LED backlight on Lenovo ThinkPad T510s and
  W510s. Since this did not occur while running nouveau or when
  switching in text VT, something is wrong.

  This bad backlight behaviour has been confirmed on ThinkPad models T510 and 
 W510 with NVIDIA NVS 3100m and Quadro FX 880M chipsets, respectively, via 
 http://www.thinkwiki.org/wiki/Category:T510
  Because this issue is related to NVIDIA's proprietary video driver, this 
 issue can only be solved by them. An NVIDIA developer has said he will 
 investigate the issues, which are  discussed on the nvnews.net forums at 
 http://www.nvnews.net/vbulletin/showthread.php?t=145105 and 
 http://www.nvnews.net/vbulletin/showthread.php?t=150069 . For future 
 reference, the latest NVIDIA drivers can be found in the Ubuntu X-Swat X 
 updates PPA: https://launchpad.net/~ubuntu-x-swat/+archive/x-updates


  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: nvidia-current 195.36.15-0ubuntu2
  ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
  Uname: Linux 2.6.32-19-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Mon Apr 12 23:48:02 2010
  DkmsStatus:
   nvidia-current, 195.36.15, 2.6.32-19-generic, x86_64: installed
  EcryptfsInUse: Yes
  GdmLog1:

  MachineType: LENOVO 4313CTO
  ProcCmdLine: BOOT_IMAGE=/bhostnamet/vmlinuz-2.6.32-19-generic 
 rhostnamet=UUID=0b95b314-337f-49aa-86f9-6423e76e9f20 ro
  ProcEnviron:
   LANG=en_CA.utf8
   SHELL=/bin/bash
  SourcePackage: nvidia-graphics-drivers
  XorgLogOld:

  dmi.bios.date: 02/22/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6MET49WW (1 tp-smapi, 0.40, 2.6.32-19-generic, x86_64: 
 installed
   vboxnetadp, 3.1.6, 2.6.32-19-generic, x86_64: installed
   vboxnetflt, 3.1.6, 2.6.32-19-generic, x86_64: installed
   vboxdrv, 3.1.6, 2.6.32-19-generic, x86_64: installed.12 )
  dmi.board.name: 4313CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
 dmi:bvnLENOVO:bvr6MET49WW(1.12):bd02/22/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4313CTO
  dmi.product.version: ThinkPad T510
  dmi.sys.vendor: LENOVO
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       x86_64
   kernel:             2.6.32-19-generic

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 https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/562005/+subscriptions


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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-05-01 Thread Simon Hirscher
By the way: I'm running Natty now and (once again) I can confirm the
issues. Changing the brightness in another tty does the trick.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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Re: [Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-04-23 Thread Simon Hirscher
Forget about forums.lenovo.com. There're issues with the WWAN firmware
which were reported in the forums more than a year ago, now, and
Lenovo hasn't bothered to fix them properly since.

On Sat, Apr 23, 2011 at 06:35, Martin Spacek launch...@mspacek.mm.st wrote:
 Hm. Is there some way we could push this through with Lenovo's clout?
 Maybe via forums.lenovo.com?

 --
 You received this bug notification because you are a direct subscriber
 of the bug.
 https://bugs.launchpad.net/bugs/562005

 Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

 Status in “nvidia-graphics-drivers” package in Ubuntu:
  Confirmed

 Bug description:
  The brightness controls of laptops with NVIDIA NVS 3100M or Quadro FX
  880M GPUs work  while running Nouveau or when using a text mode VT,
  but not while running X and using proprietary NVIDIA drivers.  It is
  possible to force the NVIDIA driver to control the backlight by adding
  [Option RegistryDwords EnableBrightnessControl=1] to the Devices
  section of xorg.conf . While this allows the backlight to be
  controlled, the increments are inconsistent and often result in a
  buzzing noise from the LED backlight on Lenovo ThinkPad T510s and
  W510s. Since this did not occur while running nouveau or when
  switching in text VT, something is wrong.

  This bad backlight behaviour has been confirmed on ThinkPad models T510 and 
 W510 with NVIDIA NVS 3100m and Quadro FX 880M chipsets, respectively, via 
 http://www.thinkwiki.org/wiki/Category:T510
  Because this issue is related to NVIDIA's proprietary video driver, this 
 issue can only be solved by them. An NVIDIA developer has said he will 
 investigate the issues, which are  discussed on the nvnews.net forums at 
 http://www.nvnews.net/vbulletin/showthread.php?t=145105 and 
 http://www.nvnews.net/vbulletin/showthread.php?t=150069 . For future 
 reference, the latest NVIDIA drivers can be found in the Ubuntu X-Swat X 
 updates PPA: https://launchpad.net/~ubuntu-x-swat/+archive/x-updates


  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: nvidia-current 195.36.15-0ubuntu2
  ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
  Uname: Linux 2.6.32-19-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Mon Apr 12 23:48:02 2010
  DkmsStatus:
   nvidia-current, 195.36.15, 2.6.32-19-generic, x86_64: installed
  EcryptfsInUse: Yes
  GdmLog1:

  MachineType: LENOVO 4313CTO
  ProcCmdLine: BOOT_IMAGE=/bhostnamet/vmlinuz-2.6.32-19-generic 
 rhostnamet=UUID=0b95b314-337f-49aa-86f9-6423e76e9f20 ro
  ProcEnviron:
   LANG=en_CA.utf8
   SHELL=/bin/bash
  SourcePackage: nvidia-graphics-drivers
  XorgLogOld:

  dmi.bios.date: 02/22/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6MET49WW (1 tp-smapi, 0.40, 2.6.32-19-generic, x86_64: 
 installed
   vboxnetadp, 3.1.6, 2.6.32-19-generic, x86_64: installed
   vboxnetflt, 3.1.6, 2.6.32-19-generic, x86_64: installed
   vboxdrv, 3.1.6, 2.6.32-19-generic, x86_64: installed.12 )
  dmi.board.name: 4313CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
 dmi:bvnLENOVO:bvr6MET49WW(1.12):bd02/22/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4313CTO
  dmi.product.version: ThinkPad T510
  dmi.sys.vendor: LENOVO
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       x86_64
   kernel:             2.6.32-19-generic

 To unsubscribe from this bug, go to:
 https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/562005/+subscribe


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https://bugs.launchpad.net/bugs/562005

Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-04-22 Thread Tom Gelinas
Sorry, thought I already replied: No, nvidia's bug reporting system
sucks. It doesn't even use HTTPS for login and they don't seem to pay
attention to Linux bugs. Someone like an OEM or big developer will need
to pick this up if it's going to be fixed, I think.

** Tags added: t420 t520 w520

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-04-22 Thread Martin Spacek
Hm. Is there some way we could push this through with Lenovo's clout?
Maybe via forums.lenovo.com?

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-04-21 Thread Bungeman
I am currently on a new w520 with Ubuntu 11.04 beta (Linux
2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64
x86_64 x86_64 GNU/Linux) with nvidia driver 270.41.03 with the 1000M
(BIOS set to use just the nvidia card, optimus disabled) and can confirm
similar issues with setting the brightness.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-04-04 Thread Martin Spacek
Thanks for that Tom. Have you heard anything back from them? I wonder if
the new Quadro 1000M and 2000M GPUs on the new Thinkpad T520 and W520
have the same problem...

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-03-21 Thread Tom Gelinas
This is still broken with 270.30, from natty repositories.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-03-21 Thread Tom Gelinas
Sent a bug report to linux-b...@nvidia.com, should have done it a year
ago.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2011-01-24 Thread Martin Spacek
My nvidia blob just updated itself to 270.18 from the x-swat PPA.
Brightness controls remain broken.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
  no longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-12-16 Thread Martin Spacek
Dieter, no, this bug has nothing to do with suspend, and only pertains
to laptops with the newish nvidia NVS and Quadro FX 880M GPUs.

My nvidia blob just updated itself to 260.19.29 from the x-swat PPA.
Brightness controls remain broken.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-12-03 Thread Martin Spacek
Here's a somewhat interesting account from what seems to me like a
duplicate. I think I can confirm what he says about values in
/proc/acpi/video/VID/LCD0/brightness

Bug #613638
Adjusting brightness broken after hibernate/suspend

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-12-03 Thread Martin Spacek
I just tried the new nvidia blob from the
https://launchpad.net/~ubuntu-x-swat/+archive/x-updates ppa (260.19.26),
brightness controls still don't work.

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-12-03 Thread DieterVDW
I tried commenting out the EnableBrightnessControl=1 line and I'm unable to 
control the brightness. The on-screen popup shows me that the buttons are 
working and I'm changing the value, but screen brightness does not change.
So please consider my testimony in bug #613638 as incorrect, this does not seem 
to have something to do with the hibernate/suspend.
(Unless attaching an external monitor influences this behaviour. I had an 
external monitor connected when testing this. Will verify, but was probably 
just confused.)

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Title:
  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
longer function while using proprietary drivers

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-12-03 Thread Tom Gelinas
I've bumped the bug report at nvnews.net repeatedly and have done so
again today. The lack of formality with regard to NVIDIA bug reports is
very irritating!
http://www.nvnews.net/vbulletin/showthread.php?p=2359095#post2359095

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-12-03 Thread DieterVDW
Possibly related to bug #606547 ?

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  Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
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Re: [Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-10-26 Thread Delyan Kalchev
Yes, when the display turns off sometimes it cannot be turned back on.
Instead of restarting I do something like: Ctrl+Alt+F1 and then back
Alt+F7 (or wherever your X is). That turns the display back on when
it's stuck. This is surely a bug and it appeared with older versions
of the Nvidia driver. Now it's back on the stage if it had ever been
fixed at all.


On Tue, Oct 26, 2010 at 4:44 AM, Jon Packard jonpack...@gmail.com wrote:
 I just did a fresh install of Maverick 64-bit on my HP EliteBook 8440p
 with NVS 3100m graphics. I still had to use nomodeset to install and
 to boot thereafter, but that's not an issue. After installing the nVidia
 proprietary drivers, I found that whenever my notebook tries to power
 its screen off, it gets stuck as black and has to be restarted to fix.
 The computer is still responsive, since I can ctrl-alt-del, enter, tab,
 enter to poweroff. I have tried adding the [Option  RegistryDwords
 EnableBrightnessControl=1] line to the device section of my xorg.conf
 and rebooting, just as I did in Lucid. Unlike in Lucid, this did not
 resolve my issue. My nvidia driver version is 260.19.06-0ubuntu1. Could
 anyone please suggest any workarounds I could try? I can suspend just
 fine, but I often like to shut my screen and let my notebook continue
 working. Thank you in advance.

 --
 Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
 longer function while using proprietary drivers
 https://bugs.launchpad.net/bugs/562005
 You received this bug notification because you are a direct subscriber
 of the bug.

 Status in “nvidia-graphics-drivers” package in Ubuntu: Confirmed

 Bug description:
 The brightness controls of laptops with NVIDIA NVS 3100M or Quadro FX 880M 
 GPUs work  while running Nouveau or when using a text mode VT, but not while 
 running X and using proprietary NVIDIA drivers.  It is possible to force the 
 NVIDIA driver to control the backlight by adding [Option RegistryDwords 
 EnableBrightnessControl=1] to the Devices section of xorg.conf . While 
 this allows the backlight to be controlled, the increments are inconsistent 
 and often result in a buzzing noise from the LED backlight on Lenovo ThinkPad 
 T510s and W510s. Since this did not occur while running nouveau or when 
 switching in text VT, something is wrong.

 This bad backlight behaviour has been confirmed on ThinkPad models T510 and 
 W510 with NVIDIA NVS 3100m and Quadro FX 880M chipsets, respectively, via 
 http://www.thinkwiki.org/wiki/Category:T510
 Because this issue is related to NVIDIA's proprietary video driver, this 
 issue can only be solved by them. An NVIDIA developer has said he will 
 investigate the issues, which are  discussed on the nvnews.net forums at 
 http://www.nvnews.net/vbulletin/showthread.php?t=145105 and 
 http://www.nvnews.net/vbulletin/showthread.php?t=150069 . For future 
 reference, the latest NVIDIA drivers can be found in the Ubuntu X-Swat X 
 updates PPA: https://launchpad.net/~ubuntu-x-swat/+archive/x-updates


 ProblemType: Bug
 DistroRelease: Ubuntu 10.04
 Package: nvidia-current 195.36.15-0ubuntu2
 ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
 Uname: Linux 2.6.32-19-generic x86_64
 NonfreeKernelModules: nvidia
 Architecture: amd64
 Date: Mon Apr 12 23:48:02 2010
 DkmsStatus:
  nvidia-current, 195.36.15, 2.6.32-19-generic, x86_64: installed
 EcryptfsInUse: Yes
 GdmLog1:

 MachineType: LENOVO 4313CTO
 ProcCmdLine: BOOT_IMAGE=/bhostnamet/vmlinuz-2.6.32-19-generic 
 rhostnamet=UUID=0b95b314-337f-49aa-86f9-6423e76e9f20 ro
 ProcEnviron:
  LANG=en_CA.utf8
  SHELL=/bin/bash
 SourcePackage: nvidia-graphics-drivers
 XorgLogOld:

 dmi.bios.date: 02/22/2010
 dmi.bios.vendor: LENOVO
 dmi.bios.version: 6MET49WW (1 tp-smapi, 0.40, 2.6.32-19-generic, x86_64: 
 installed
  vboxnetadp, 3.1.6, 2.6.32-19-generic, x86_64: installed
  vboxnetflt, 3.1.6, 2.6.32-19-generic, x86_64: installed
  vboxdrv, 3.1.6, 2.6.32-19-generic, x86_64: installed.12 )
 dmi.board.name: 4313CTO
 dmi.board.vendor: LENOVO
 dmi.board.version: Not Available
 dmi.chassis.asset.tag: No Asset Information
 dmi.chassis.type: 10
 dmi.chassis.vendor: LENOVO
 dmi.chassis.version: Not Available
 dmi.modalias: 
 dmi:bvnLENOVO:bvr6MET49WW(1.12):bd02/22/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
 dmi.product.name: 4313CTO
 dmi.product.version: ThinkPad T510
 dmi.sys.vendor: LENOVO
 system:
  distro:             Ubuntu
  codename:           lucid
  architecture:       x86_64
  kernel:             2.6.32-19-generic



 To unsubscribe from this bug, go to:
 https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/562005/+subscribe


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Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer 
function while using proprietary drivers
https://bugs.launchpad.net/bugs/562005
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-10-26 Thread Jon Packard
Delyan,
Thank you for your help! I forgot to mention that I used to do that in Lucid 
before the xorg.conf workaround. Sadly that doesn't seem to help in Maverick. I 
wonder if downgrading to an older version of nvidia drivers would help.

-- 
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer 
function while using proprietary drivers
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Re: [Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-10-26 Thread Delyan Kalchev
Maybe you should give it a try. I have the same computer as yours with
the same video card. Maybe the workaround by switching to console do
not always work but I had the luck.

On Tue, Oct 26, 2010 at 1:12 PM, Jon Packard jonpack...@gmail.com wrote:
 Delyan,
 Thank you for your help! I forgot to mention that I used to do that in Lucid 
 before the xorg.conf workaround. Sadly that doesn't seem to help in Maverick. 
 I wonder if downgrading to an older version of nvidia drivers would help.

 --
 Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no 
 longer function while using proprietary drivers
 https://bugs.launchpad.net/bugs/562005
 You received this bug notification because you are a direct subscriber
 of the bug.

 Status in “nvidia-graphics-drivers” package in Ubuntu: Confirmed

 Bug description:
 The brightness controls of laptops with NVIDIA NVS 3100M or Quadro FX 880M 
 GPUs work  while running Nouveau or when using a text mode VT, but not while 
 running X and using proprietary NVIDIA drivers.  It is possible to force the 
 NVIDIA driver to control the backlight by adding [Option RegistryDwords 
 EnableBrightnessControl=1] to the Devices section of xorg.conf . While 
 this allows the backlight to be controlled, the increments are inconsistent 
 and often result in a buzzing noise from the LED backlight on Lenovo ThinkPad 
 T510s and W510s. Since this did not occur while running nouveau or when 
 switching in text VT, something is wrong.

 This bad backlight behaviour has been confirmed on ThinkPad models T510 and 
 W510 with NVIDIA NVS 3100m and Quadro FX 880M chipsets, respectively, via 
 http://www.thinkwiki.org/wiki/Category:T510
 Because this issue is related to NVIDIA's proprietary video driver, this 
 issue can only be solved by them. An NVIDIA developer has said he will 
 investigate the issues, which are  discussed on the nvnews.net forums at 
 http://www.nvnews.net/vbulletin/showthread.php?t=145105 and 
 http://www.nvnews.net/vbulletin/showthread.php?t=150069 . For future 
 reference, the latest NVIDIA drivers can be found in the Ubuntu X-Swat X 
 updates PPA: https://launchpad.net/~ubuntu-x-swat/+archive/x-updates


 ProblemType: Bug
 DistroRelease: Ubuntu 10.04
 Package: nvidia-current 195.36.15-0ubuntu2
 ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
 Uname: Linux 2.6.32-19-generic x86_64
 NonfreeKernelModules: nvidia
 Architecture: amd64
 Date: Mon Apr 12 23:48:02 2010
 DkmsStatus:
  nvidia-current, 195.36.15, 2.6.32-19-generic, x86_64: installed
 EcryptfsInUse: Yes
 GdmLog1:

 MachineType: LENOVO 4313CTO
 ProcCmdLine: BOOT_IMAGE=/bhostnamet/vmlinuz-2.6.32-19-generic 
 rhostnamet=UUID=0b95b314-337f-49aa-86f9-6423e76e9f20 ro
 ProcEnviron:
  LANG=en_CA.utf8
  SHELL=/bin/bash
 SourcePackage: nvidia-graphics-drivers
 XorgLogOld:

 dmi.bios.date: 02/22/2010
 dmi.bios.vendor: LENOVO
 dmi.bios.version: 6MET49WW (1 tp-smapi, 0.40, 2.6.32-19-generic, x86_64: 
 installed
  vboxnetadp, 3.1.6, 2.6.32-19-generic, x86_64: installed
  vboxnetflt, 3.1.6, 2.6.32-19-generic, x86_64: installed
  vboxdrv, 3.1.6, 2.6.32-19-generic, x86_64: installed.12 )
 dmi.board.name: 4313CTO
 dmi.board.vendor: LENOVO
 dmi.board.version: Not Available
 dmi.chassis.asset.tag: No Asset Information
 dmi.chassis.type: 10
 dmi.chassis.vendor: LENOVO
 dmi.chassis.version: Not Available
 dmi.modalias: 
 dmi:bvnLENOVO:bvr6MET49WW(1.12):bd02/22/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
 dmi.product.name: 4313CTO
 dmi.product.version: ThinkPad T510
 dmi.sys.vendor: LENOVO
 system:
  distro:             Ubuntu
  codename:           lucid
  architecture:       x86_64
  kernel:             2.6.32-19-generic



 To unsubscribe from this bug, go to:
 https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/562005/+subscribe


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Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer 
function while using proprietary drivers
https://bugs.launchpad.net/bugs/562005
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which is subscribed to nvidia-graphics-drivers in ubuntu.

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-10-25 Thread Jon Packard
I just did a fresh install of Maverick 64-bit on my HP EliteBook 8440p
with NVS 3100m graphics. I still had to use nomodeset to install and
to boot thereafter, but that's not an issue. After installing the nVidia
proprietary drivers, I found that whenever my notebook tries to power
its screen off, it gets stuck as black and has to be restarted to fix.
The computer is still responsive, since I can ctrl-alt-del, enter, tab,
enter to poweroff. I have tried adding the [Option  RegistryDwords
EnableBrightnessControl=1] line to the device section of my xorg.conf
and rebooting, just as I did in Lucid. Unlike in Lucid, this did not
resolve my issue. My nvidia driver version is 260.19.06-0ubuntu1. Could
anyone please suggest any workarounds I could try? I can suspend just
fine, but I often like to shut my screen and let my notebook continue
working. Thank you in advance.

-- 
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer 
function while using proprietary drivers
https://bugs.launchpad.net/bugs/562005
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in ubuntu.

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-09-04 Thread Tom Gelinas
The issue persists with 256.53.
This problem won't be solved through launchpad, please fell free to bump 
http://www.nvnews.net/vbulletin/showthread.php?t=150069 to notify the nvidia 
developers.

-- 
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer 
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https://bugs.launchpad.net/bugs/562005
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-09-01 Thread CJ
Hans anyone been able to verify if the latest nvidia release addresses
this issue?  It is up to 256.53 now.

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-09-01 Thread Martin Spacek
I was using Maverick a couple of days ago with whatever the default
nvidia driver was (256.44 at the time, I believe), but the problem
remained.

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-06-15 Thread Martin Habovštiak
Thank you Tom Gelinas! I tried add Option ... to xorg and it works. :)

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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-31 Thread Tom Gelinas
NVIDIA's 256.29 beta driver is available from this PPA: 
https://launchpad.net/~ubuntu-x-swat/+archive/x-updates .
The issue is not solved, and I didn't expect it to be. Again, the bugs for both 
NVS *100m series and FX 880M have been reported to the NVIDIA developers @ 
nvnews.net, the links to those threads are in the description of this bug (bug 
562005).

** Description changed:

  The brightness controls of laptops with NVIDIA NVS 3100M or Quadro FX
  880M GPUs work  while running Nouveau or when using a text mode VT, but
  not while running X and using proprietary NVIDIA drivers.  It is
  possible to force the NVIDIA driver to control the backlight by adding
  [Option RegistryDwords EnableBrightnessControl=1] to the Devices
  section of xorg.conf . While this allows the backlight to be controlled,
  the increments are inconsistent and often result in a buzzing noise from
  the LED backlight on Lenovo ThinkPad T510s and W510s. Since this did not
  occur while running nouveau or when switching in text VT, something is
  wrong.
  
  This bad backlight behaviour has been confirmed on ThinkPad models T510 and 
W510 with NVIDIA NVS 3100m and Quadro FX 880M chipsets, respectively, via 
http://www.thinkwiki.org/wiki/Category:T510
- The issue is discussed on the nvnews.net forums at 
http://www.nvnews.net/vbulletin/showthread.php?t=145105 and 
http://www.nvnews.net/vbulletin/showthread.php?t=150069 . An NVIDIA developer 
has said he will investigate the issue.
+ Because this issue is related to NVIDIA's proprietary video driver, this 
issue can only be solved by them. An NVIDIA developer has said he will 
investigate the issues, which are  discussed on the nvnews.net forums at 
http://www.nvnews.net/vbulletin/showthread.php?t=145105 and 
http://www.nvnews.net/vbulletin/showthread.php?t=150069 . For future reference, 
the latest NVIDIA drivers can be found in the Ubuntu X-Swat X updates PPA: 
https://launchpad.net/~ubuntu-x-swat/+archive/x-updates
+ 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: nvidia-current 195.36.15-0ubuntu2
  ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
  Uname: Linux 2.6.32-19-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Mon Apr 12 23:48:02 2010
  DkmsStatus:
-  tp-smapi, 0.40, 2.6.32-19-generic, x86_64: installed
-  vboxnetadp, 3.1.6, 2.6.32-19-generic, x86_64: installed
-  vboxnetflt, 3.1.6, 2.6.32-19-generic, x86_64: installed
-  vboxdrv, 3.1.6, 2.6.32-19-generic, x86_64: installed
   nvidia-current, 195.36.15, 2.6.32-19-generic, x86_64: installed
  EcryptfsInUse: Yes
  GdmLog1:
  
- Lsusb:
-  Bus 002 Device 002: ID 8087:0020
-  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 001 Device 003: ID 17ef:480f Lenovo
-  Bus 001 Device 002: ID 8087:0020
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 4313CTO
  ProcCmdLine: BOOT_IMAGE=/bhostnamet/vmlinuz-2.6.32-19-generic 
rhostnamet=UUID=0b95b314-337f-49aa-86f9-6423e76e9f20 ro
  ProcEnviron:
   LANG=en_CA.utf8
   SHELL=/bin/bash
  SourcePackage: nvidia-graphics-drivers
  XorgLogOld:
  
  dmi.bios.date: 02/22/2010
  dmi.bios.vendor: LENOVO
- dmi.bios.version: 6MET49WW (1.12 )
+ dmi.bios.version: 6MET49WW (1 tp-smapi, 0.40, 2.6.32-19-generic, x86_64: 
installed
+  vboxnetadp, 3.1.6, 2.6.32-19-generic, x86_64: installed
+  vboxnetflt, 3.1.6, 2.6.32-19-generic, x86_64: installed
+  vboxdrv, 3.1.6, 2.6.32-19-generic, x86_64: installed.12 )
  dmi.board.name: 4313CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr6MET49WW(1.12):bd02/22/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4313CTO
  dmi.product.version: ThinkPad T510
  dmi.sys.vendor: LENOVO
  system:
   distro: Ubuntu
   codename:   lucid
   architecture:   x86_64
   kernel: 2.6.32-19-generic

-- 
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer 
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https://bugs.launchpad.net/bugs/562005
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-27 Thread Delyan Kalchev
There is a newer driver release by Nvidia: http://www.nvidia.com/object
/linux-display-amd64-195.36.24.html

I have installed it and it changed nothing here. If that do not do it
you should try http://www.nvidia.com/object/linux-display-
amd64-256.25.html - the latest beta. Then, if it still wrong, Nvidia
have to be informed to fix it or a workaround may be looked for.

-- 
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-26 Thread Delyan Kalchev
Here is a part of lshal output:

udi = '/org/freedesktop/Hal/devices/computer_backlight'
  info.addons = {'hald-addon-generic-backlight'} (string list)
  info.capabilities = {'laptop_panel'} (string list)
  info.category = 'laptop_panel'  (string)
  info.interfaces = {'org.freedesktop.Hal.Device.LaptopPanel'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Generic Backlight Device'  (string)
  info.subsystem = 'backlight'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_backlight'  (string)
  laptop_panel.access_method = 'general'  (string)
  laptop_panel.brightness_in_hardware = true  (bool)
  laptop_panel.num_levels = 25  (0x19)  (int)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'backlight'  (string)
  linux.sysfs_path = '/sys/devices/virtual/backlight/acpi_video0'  (string)

Please, post yours so we can compare. It looks like Nvidia driver's ACPI
part is bugous. Most likely it doesn't detect correctly the
laptop_panel.num_levels. I do not have the same problem here but even
though 25 levels look too many. I don't know if it is representative to
compare with the number of levels in Windows because I compare with how
many states can be set using the brightness keys. They are no more than
12 (not sure exactly) in Windows and surely are far from 25. Gnome-
power-manager is buggy either and it causes my problem with the
brightness keys. Look here:
https://bugs.launchpad.net/ubuntu/+source/hal/+bug/77739 - there is an
attached script for testing the brightness settings. You can try it.

-- 
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https://bugs.launchpad.net/bugs/562005
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-26 Thread Delyan Kalchev
Have you tested the latest Nvidia's driver release (ubuntu's one is not
the newest) or even a beta version of the driver?

-- 
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-26 Thread Delyan Kalchev
OK. I'm sorry for calling names to GPM. I've fixed my problem and it has
nothing to do with GPM or the current issue. Again it holds - loads of
brightness levels - 25. All are unique and have effect - they change
something. I hope Nvidia will fix their driver and this issue with
Thinkpads will be gone.

-- 
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-26 Thread Martin Spacek
Here are the relevant parts of my lshal output:

udi = '/org/freedesktop/Hal/devices/computer_backlight_0'
  info.addons = {'hald-addon-generic-backlight'} (string list)
  info.capabilities = {'laptop_panel'} (string list)
  info.category = 'laptop_panel'  (string)
  info.interfaces = {'org.freedesktop.Hal.Device.LaptopPanel'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Generic Backlight Device'  (string)
  info.subsystem = 'backlight'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_backlight_0'  (string)
  laptop_panel.access_method = 'general'  (string)
  laptop_panel.brightness_in_hardware = true  (bool)
  laptop_panel.num_levels = 1  (0x1)  (int)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'backlight'  (string)
  linux.sysfs_path = '/sys/devices/virtual/backlight/thinkpad_screen'  (string)

udi = '/org/freedesktop/Hal/devices/computer_backlight'
  info.addons = {'hald-addon-generic-backlight'} (string list)
  info.capabilities = {'laptop_panel'} (string list)
  info.category = 'laptop_panel'  (string)
  info.interfaces = {'org.freedesktop.Hal.Device.LaptopPanel'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Generic Backlight Device'  (string)
  info.subsystem = 'backlight'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_backlight'  (string)
  laptop_panel.access_method = 'general'  (string)
  laptop_panel.brightness_in_hardware = true  (bool)
  laptop_panel.num_levels = 16  (0x10)  (int)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'backlight'  (string)
  linux.sysfs_path = '/sys/devices/virtual/backlight/acpi_video0'  (string)

I don't know why I have both a computer_backlight and a
computer_backlight_0 entry. This is from a fresh install of Lucid RC on
a Thinkpad W510 with the latest 195 series nvidia driver from the Ubuntu
repo. It reports 16 levels, which is what I get in Windows (0 to 15).
Right now I can only control brightness by switching to a TTY. i get 16
different levels there, and the up and down increments are the same. I
don't currently have the EnableBrightControl option set in my
xorg.conf.

-- 
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https://bugs.launchpad.net/bugs/562005
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-26 Thread Tom Gelinas
Here's the lshal output from my T510 without backlight controls force-
enabled in xorg.conf:

udi = '/org/freedesktop/Hal/devices/computer_backlight'
  info.addons = {'hald-addon-generic-backlight'} (string list)
  info.capabilities = {'laptop_panel'} (string list)
  info.category = 'laptop_panel'  (string)
  info.interfaces = {'org.freedesktop.Hal.Device.LaptopPanel'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Generic Backlight Device'  (string)
  info.subsystem = 'backlight'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_backlight'  (string)
  laptop_panel.access_method = 'general'  (string)
  laptop_panel.brightness_in_hardware = true  (bool)
  laptop_panel.num_levels = 16  (0x10)  (int)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'backlight'  (string)
  linux.sysfs_path = '/sys/devices/virtual/backlight/acpi_video0'  (string)

-- 
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-26 Thread Tom Gelinas
Also I'm running nvidia driver version 195.36.15 .  Next time I restart
this machine, I'll check for changes to lshal output caused by forcing
nvidia to control the backlight.

-- 
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-26 Thread Tom Gelinas
lshal output seems to be identical when the nvidia driver is forced to
control the backlight. I agree, the nvidia driver is probably passing
the wrong number of brightness levels. Thanks for the link to bug 7779,
i'll play around wth that script later.

-- 
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[Ubuntu-x-swat] [Bug 562005] Re: Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers

2010-05-24 Thread Delyan Kalchev
Hello. I've just tested the option you had mentioned. It successfully
forces the driver to control the brightness. But the only way to change
it is using the slider in the Power Management windows (in
System-Preferences). Using the function keys does not change the
brightness. Only the notification appears (so the key pressing is surely
detected) but nothing changes - neither in the progress bar in the
notification, nor the brightness itself.  The Brightness applet in the
panel refuses any change, either. It is completely the same when I
remove the proprietary driver, the only difference is that without the
proprietary driver the resolution is wrong and cannot be set to normal.
I cannot imagine why the applet is not working. I can also use (when
root) a command like

 echo 80  /proc/acpi/video/DGFX/LCD/brightness

and it sets the brightness

When using the slide to set the brightness I can NOT detect any buzz or
humming. Probably it is specific effect on ThinkPad's hardware or
because I do not use keys to set the brightness degree, so no hardware-
confusing values appear. Either way a fix is needed.

I'm attaching my logs for comparison. Those with _no in the name are
without the proprietary driver, and the ones with _yes are with it.

** Attachment added: logs.tar.gz
   http://launchpadlibrarian.net/49039821/logs.tar.gz

-- 
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