MacBook(Pro) with Nvidia graphics adapter display backlight fix call for testing

[ercoppa]

Hi, I see here:

Added support for the following new GPUs:
GeForce 9400M

I running to install this driver.

[ercoppa]

Argh, now (with last beta driver) changing brightness (with echo) not works in X11

Some ideas?

[pouipschngoku]

Hi Mario,

glxinfo | grep OpenGL gives me:

OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 9600M GT/PCI/SSE2
OpenGL version string: 2.1.2 NVIDIA 177.80
OpenGL shading language version string: 1.20 NVIDIA via Cg compiler
OpenGL extensions:

I'm not getting any crashing and am using my machine for work so I'm pretty much on it full time

Cheers

[_mario_]

glxinfo | grep OpenGL gives me:

OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 9600M GT/PCI/SSE2
OpenGL version string: 2.1.2 NVIDIA 177.80
OpenGL shading language version string: 1.20 NVIDIA via Cg compiler
OpenGL extensions:

I'm not getting any crashing and am using my machine for work so I'm pretty much on it full time.

i meant that glxinfo whould crash if you were running the open-source driver.

however, it looks like you're (a) using the proprietary driver and (b) on a MacBookPro 5. this problem only affects MacBook 5 and MacBook Air 2, so we still have no solution yet.

ciao,
Mario

[Nikos.Alexandris]

I've posted in another thread[1] The News , but why not also here? The brightness regulation keys F(n)1 and F(n)2 work on the MBP 5,1 with the 3D-effects enabled (activate effects, shutdown, boot).

Regards, Nikos

[1] http://ubuntuforums.org/showpost.php...1&postcount=36

[ercoppa]

The brightness regulation keys F(n)1 and F(n)2 work on the MBP 5,1 with the 3D-effects enabled (activate effects, shutdown, boot).

Not for me
What version of nvidia is installed? Do you have installed hal-nvidia-bl? With 3D-effects enabled, the echo (echo 15 | sudo tee /sys/class/backlight/mbp_backlight/brightness) works in X11?

[Nikos.Alexandris]

Not for me
What version of nvidia is installed? Do you have installed hal-nvidia-bl? With 3D-effects enabled, the echo (echo 15 | sudo tee /sys/class/backlight/mbp_backlight/brightness) works in X11?

Dear ercoppa,
here you go.

1. Driver version

nvidia-settings -g | grep version

Xlib:  extension "RANDR" missing on display ":0.0".
  server glx version string: 1.4
  client glx version string: 1.4
  OpenGL version string: 2.1.2 NVIDIA 177.80

2. About "hal"

lsmod | grep nvidia
mbp_nvidia_bl          12568  0 
nvidia               7804864  38 
i2c_core               36128  1 nvidia

3. Yes, the command (you mentioned above) works fine.

Regards, Nikos

[_mario_]

Not for me
What version of nvidia is installed? Do you have installed hal-nvidia-bl? With 3D-effects enabled, the echo (echo 15 | sudo tee /sys/class/backlight/mbp_backlight/brightness) works in X11?

the package hal-nvidia-bl shouldn't be necessary. however, i believe, you won't have luck asking Nikos.Alexandris. he's running a MacBookPro 5, while your machine, according to your previous posts, is a MacBook 5. this problem only affects MacBook 5 and MacBookAir 2 in conjunction with Nvidia's proprietary driver. MacBookPro 5's were reported to work, no matter which driver is in use.

ciao,
Mario

[heluani]

Edit: erased not to bother in this thread. _mario_'s answer below could be useful anyway to other users.

[_mario_]

I don't mean to hijack this thread (I'll erase/edit this post upon request)

you could have started a new thead, haven't you

... but I've been trying to get the screen working without the restricted drivers on a Macbook Air 2.1. Indeed the brightness can be controlled within X in this case, but the problem is that I can't get 1280x800. Getting the modeline with gtf and adding the mode with xrandr seems to work fine, but then trying to change the mode either from xrandr or gnome-display-properties just gives an error (configure crtc 0 failed). Is there another method of changing the resolution without the restricted drivers?

which driver are you using? i changed to the open-source driver for testing purposes and it worked. what does:

grep "NV: Found" /var/log/Xorg.0.log

give? the open-source driver starts all lines with 'NV:'.

you can also list all detected modelines by issuing:

grep "NV(0): Modeline" /var/log/Xorg.0.log

and a modern display should report all supported modes properly.

however, since the open-source driver doesn't seem to support the 9400M yet (a least it's not listed), could it be that you're using the vesa framebuffer driver? that doesn't support xrandr? just a guess...

ciao,
Mario