Backlight on Samsung RV520
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- Newbie
- Posts: 4
- Joined: 03 Jun 2012, 13:38
Backlight on Samsung RV520
Hi all,
i have a Samsung rv520 with an Geforce GT 520m.
My OS is Kubuntu 12.04 Which packets i must install to controll the brigthness value?
thanks
i have a Samsung rv520 with an Geforce GT 520m.
My OS is Kubuntu 12.04 Which packets i must install to controll the brigthness value?
thanks
Re: Backlight on Samsung RV520
It feels like none. I have the same notebook and brightness control is broken after upgrade to 12.04. It worked perfectly in 11.10 though. Now I can only decrease the brighness.
Re: Backlight on Samsung RV520
You need nvidia_bl module.
Google it nvidia-bl-dkms git repo and in the downloads section, download and install nvidia_bl0.74 for ubuntu 12.04.
Problem is, samsung-tools hotkeys doesn't work! You have to echo the /sys/class/backlight/nvidia_backlight/brightness file (with a range from 0 to 127).
I hope Voria will bind the echo with the hotkeys for this laptop!
Google it nvidia-bl-dkms git repo and in the downloads section, download and install nvidia_bl0.74 for ubuntu 12.04.
Problem is, samsung-tools hotkeys doesn't work! You have to echo the /sys/class/backlight/nvidia_backlight/brightness file (with a range from 0 to 127).
I hope Voria will bind the echo with the hotkeys for this laptop!
Re: Backlight on Samsung RV520
Thanks!
Is 0.74 version compatible with Precise? In Voria's post he said that this driver was incompatible with the kernels in 12.04.
Is 0.74 version compatible with Precise? In Voria's post he said that this driver was incompatible with the kernels in 12.04.
Re: Backlight on Samsung RV520
Well, it's compatible with archlinux with kernel 3.4.2.. I guess it's fine. In voria's repo there is a 0.73 version and it's not compatible. 0.74 fix kernel 3.2.x compilation (ubuntu kernel)
Re: Backlight on Samsung RV520
Just installed it. It works. But the driver does not start automatically.
And I cannot control the brightness with FN+up/down buttons.
And I cannot control the brightness with FN+up/down buttons.
Re: Backlight on Samsung RV520
Told ya
hotkeys doesn't work.
Try loading nvidia_bl module at boot (MODULES in rc.conf)
![Biggrin :D](./images/smilies/icon_e_biggrin.gif)
Try loading nvidia_bl module at boot (MODULES in rc.conf)
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- Newbie
- Posts: 4
- Joined: 03 Jun 2012, 13:38
Re: Backlight on Samsung RV520
Hi,
iam already there![Smile :)](./images/smilies/icon_e_smile.gif)
I have now a clean installation of 12.04. But what should i exactly do to get the brightness work on my samsung rv520 ?
Thanks for reply
iam already there
![Smile :)](./images/smilies/icon_e_smile.gif)
I have now a clean installation of 12.04. But what should i exactly do to get the brightness work on my samsung rv520 ?
Thanks for reply
Re: Backlight on Samsung RV520
https://github.com/guillaumezin/nvidiabl/downloads
Install the latest .deb
I don't know if the new version let the fn keys work...(I had a problem with the monitor standby with 0.73 version and uninstalled).
To change the brightness manually just do:
echo XX > /sys/class/backlight/nvidia_backlight/brightness
XX -> from 0(min) to 128(max)
Install the latest .deb
I don't know if the new version let the fn keys work...(I had a problem with the monitor standby with 0.73 version and uninstalled).
To change the brightness manually just do:
echo XX > /sys/class/backlight/nvidia_backlight/brightness
XX -> from 0(min) to 128(max)
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- Newbie
- Posts: 4
- Joined: 03 Jun 2012, 13:38
Re: Backlight on Samsung RV520
Hi,
i have installed the deb packet. But when i try to change the brightness over the terminal, i get an error message
becaue the folder / file nvidia Backlight didnt exsist.
Have yout a idea?
i have installed the deb packet. But when i try to change the brightness over the terminal, i get an error message
becaue the folder / file nvidia Backlight didnt exsist.
Have yout a idea?
-
- Newbie
- Posts: 4
- Joined: 03 Jun 2012, 13:38
Re: Backlight on Samsung RV520
re,
i came a step forward! now i can change the brightness with you console command. But the maximum brightness i can adjust is nit very maximum
can i change the maximum an minimum values?
Because when i want to set it for example on 100 The display is in my opinion on 15 oder 20 %.
regards
i came a step forward! now i can change the brightness with you console command. But the maximum brightness i can adjust is nit very maximum
![Wink ;)](./images/smilies/icon_e_wink.gif)
Because when i want to set it for example on 100 The display is in my opinion on 15 oder 20 %.
regards
Re: Backlight on Samsung RV520
You neet to load the module nvidiabl with an option max_brightness = 10000
Re: Backlight on Samsung RV520
thanks for your help!