How To Adjust Netbook Screen Brightness in Tahr?

[jm03]

Hi guys,

I now have Puppy Tahr running successfully on two old laptops:

1) Lenovo ThinkPad x220i

2) Samsung NC210 Netbook

On the ThinkPad I can adjust the screen brightness using the keyboard keys for that purpose.

On the Netbook the brightness keys on the keyboard do not work - so I need to find another way to do it.

When I was running Ubuntu on this Netbook I found a way to adjust the brightness by changing the value of a variable in a certain location in /dev, which I can't remember.

Do any of you know how I can adjust my Netbook brightness?

Kind Regards,

John
Melbourne, Australia

[bigpup]

this is one way.
viewtopic.php?p=2005#p2005

It will give you a slider you can use to adjust brightness.

[jm03]

Thanks for that.

I tried it out, but I couldn't get it working.

Is there another way?

I remember that on Ubuntu I found a way where a value was echoed into the /dev location for the screen

[PipzDex]

Hi jm03
check this package
comment me if works
cheers!

[jm03]

These are the instructions for adjusting the screen brightness on my Lenovo ThinkPad x220i. They are nearly identical to the instructions for my Samsung NC210 Netbook:

echo X > /sys/class/backlight/intel_backlight/brightness

Where X is between 0 and 3000.

The only difference on the Netbook is the maximum value, which can be found out using the following command:

cat /sys/class/backlight/intel_backlight/max_brightness


I hope this information can help someone else out there.

Kind Regards,

John
Melbourne, Australia

[jm03]

Hi jm03
check this package
comment me if works
cheers!

Hi PipzDex,

Thanks for your reply.

I didn't see your reply until after I had already figured out a workaround.

I'm happy with my current workaround, so I probably won't try your approach out just yet.

But, I'm curious to know, what exactly does your approach do?

How does it work?

Kind Regards,

John
Melbourne, Australia

[ally]

later thinkpads do not work out of the box using the function keys

I found that adding intel_pstate=disable acpi_osi="!Windows 2012" solved the problem

here is the full line for reference from my menu.1st:

kernel /bionicpup/vmlinuz pdrv=e2a0eaba-6938-484e-8bd5-37999f7b734c psubdir=/bionicpup pmedia=atahd pfix=fsck intel_pstate=disable acpi_osi="!Windows 2012"

[Flash]

I'm happy with my current workaround, so I probably won't try your approach out just yet.

What is your workaround? Maybe we can learn from it.

[PipzDex]

Hi jm03
check this package
comment me if works
cheers!

Hi PipzDex,

Thanks for your reply.

I didn't see your reply until after I had already figured out a workaround.

I'm happy with my current workaround, so I probably won't try your approach out just yet.

But, I'm curious to know, what exactly does your approach do?

How does it work?

Kind Regards,

John
Melbourne, Australia

Hi jm03

chek this link, is the page for the program that i share you
http://murga-linux.com/puppy/viewtopic. ... 7c#1005692
there is all the information you need
You will notice that they do not have a pet file to install, I did it for convenience since I generally do a lot of installations / tests to puppy systems and being doing manual installations I am very lazy

Cheers!

[jm03]

I'm happy with my current workaround, so I probably won't try your approach out just yet.

What is your workaround? Maybe we can learn from it.

Hi PipzDex,

I shared my workaround a few posts above.

Here it is again:

These are the instructions for adjusting the screen brightness on my Lenovo ThinkPad x220i. They are nearly identical to the instructions for my Samsung NC210 Netbook:

echo X > /sys/class/backlight/intel_backlight/brightness

Where X is between 0 and 3000.

The only difference on the Netbook is the maximum value, which can be found out using the following command:

cat /sys/class/backlight/intel_backlight/max_brightness


I hope this information can help someone else out there.

Kind Regards,

John

[Flash]

Thanks!