Brightness control not working with nVidia driver

[Vins32]

Any news regarding the brightness issue?

V.

[BasicWolf]

I'm chechking this thread every day. Last hope...

[kikvors]

Regarding the inability to set backlight on the display using the GeForce 8 series in Linux:

Is this considered a bios problem unrelated to the video card, or can NVIDIA release a driver that would allow backlight control? Is there any discussion at NV about this issue?

[BasicWolf]

Any news regarding the brightness issue?

[kikvors]

I would appreciate a sign of life from NVIDIA as well. Thanks.

[roidelapluie]

nothing new?

[roidelapluie]

it really doesn't work with my nvidia 8400M GT GPU

[Fackamato]

Come on guys. It's not just (sometimes not at all) the video card that does the brightness control. On my dell (which comes with different video cards) laptop, brightness works independent of OS. (fn + up/down)

[rinthos]

Come on guys. It's not just (sometimes not at all) the video card that does the brightness control. On my dell (which comes with different video cards) laptop, brightness works independent of OS. (fn + up/down)

Perhaps, but in many of our cases, brightness control works fine in Linux w/ the NV driver.
Only when using the Nvidia driver does it stop working...
That's driver related, no?

[Fackamato]

Originally Posted by rinthos

Perhaps, but in many of our cases, brightness control works fine in Linux w/ the NV driver.
Only when using the Nvidia driver does it stop working...
That's driver related, no?

Might be so, yes. Did you provide a detailed bug report? Maybe there is/should be a module option to tell the nvidia driver to ignore brightness control.

[Lawliet]

Originally Posted by rinthos

Perhaps, but in many of our cases, brightness control works fine in Linux w/ the NV driver.
Only when using the Nvidia driver does it stop working...
That's driver related, no?

It is really possible to control backlight w/ NV driver on 8600GS?

[rinthos]

Might be so, yes. Did you provide a detailed bug report? Maybe there is/should be a module option to tell the nvidia driver to ignore brightness control.

Long time ago, yep. (think it was w/ the 169 series driver but same issue w/ newer drivers).

It is really possible to control backlight w/ NV driver on 8600GS?

Well this is with a Quadro FX570M (8600M GT based) on HP 8510w notebook. But yes, works fine adjusting brightness via FN-F9/F10 w/ NV driver. No-go w/ Nvidia driver.