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LXDE needs

asked 2012-09-12 23:48:31 -0500

vijayan gravatar image

Hi,

I would like to have good solutions for the following for me to move to LXDE, my laptop model is B200AA, 2GB RAM, 250 GB hard drive.

Brightness control is not varying from key board short cut Short cut for sleep mode is not happening

Any suggestions for the above?

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answered 2012-09-15 03:12:05 -0500

davidva gravatar image

updated 2012-09-19 16:47:11 -0500

Hi, try xbacklight (read it http://ask.fedoraproject.org/question/180/how-can-i-change-brightness-of-laptop-on-fedora-15 )

I making some complements and it work in Fedora 15, 16, 17 and 18; lxde, xfce and gnome, I do not in kde.

this very premature, i need help; example What's on your following path?

/sys/devices/virtual/backlight/

and

/sys/class/backlight/

or

/proc/acpi/????/brightness

I need the largest number of possibilities

I am cooking it:

Brightness control

image description*

UPDATE

Other problems

"the path is saying that No such file or directory"

This article write about how to enable Backligh during login in Fedora.

Step 1: Open your Terminal

Step 2: Type the following in your terminal

su

cd /etc/default

cp /etc/default/grub /etc/default/grub.bak

sudo gedit grub

Step 3: The grub file would have opened now with the Gedit text editor, now find the line which starts with “ GRUBCMDLINELINUX =” and append the following text somewhere in the middle or at last or even at the first”

acpi_osi=Linux acpi_backlight=vendor

Step 4: Now save the file and close the text editor and get back to terminal and update the grub as follows

grub2-mkconfig -o /boot/grub2/grub.cfg

Step 5: After grub has been successfully updated, reboot the system and check whether are you getting the backlight working like charm and it should definitely work on HP laptops, even it should work on other laptops too. If not please comment below, we can seek for better solution.

Other solution

Check your graphics drivers, this is a common cause. The backlight device only work when some video capabilities were found. You can found your graphic info with: /sbin/lspci | grep VGA and install your graphic controllers.

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Asked: 2012-09-12 23:48:31 -0500

Seen: 1,328 times

Last updated: Sep 19 '12