Ubuntu
xserver-xorg-video-ati package

Can't adjust screen brightness

Asked by Daniel William

Hi i'm very new to using ubuntu right now i don't know anything. I'm on my os windows 7 trying to fix the problem. So far i already look at the other questions and answers did't help for me. I'm using a vaio laptop Ram 4GB processor AMD E-450 APU with Radeon HD Graphics 1.65 System type 64-bit. OS Windows 7 home premium. Everytime i go on Os ubuntu the brightness is set to max 100% i try to turn it down it did nothing. Please explain to me how to fix the problem.

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Ubuntu xserver-xorg-video-ati Edit question
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Daniel William
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actionparsnip (andrew-woodhead666) said : 		#1

Can you give the output of:

lsb_release -a; uname -a

Thanks

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actionparsnip (andrew-woodhead666) said : 		#2

https://help.ubuntu.com/community/Laptop/Sony/Vaio/FSeries/Natty#LCD

May help

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Daniel William (sunlightbeaming) said : 		#3

How do i get the output?

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actionparsnip (andrew-woodhead666) said : 		#4

also try:

echo "sonypi" | sudo tee -a /etc/modules; sudo modprobe sonypi

Is there any output?

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Daniel William (sunlightbeaming) said : 		#5

do i just type it in terminal? i'm new to ubuntu i don't know much.

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Daniel William (sunlightbeaming) said : 		#6

Ok i use the link that you gave me i come back in a few minutes to see it if works out. Thank you.

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actionparsnip (andrew-woodhead666) said : 		#7

Yes

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Daniel William (sunlightbeaming) said : 		#8

Well when i type in the code "sudo nano /etc/X11/xorg.conf" and type in my password all i did was show this up in terminal. "GNU nano 2.2.6 File: /etc/X11/xorg.conf Modified" What do i do next? Did i type something wrong?

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Daniel William (sunlightbeaming) said : 		#9

an issue i'm having also is no internet. To adjust the screen brightness do you need to download anything from the internet, updates anything like that?

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Daniel William (sunlightbeaming) said : 		#10

Still need answers please help.

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Daniel William (sunlightbeaming) said : 		#11

Please someone help me my eyes are burning on the laptop. I want the lowest brightness setting but i can't set it on my fn key or on the laptop either please please please help me. I'm new to using ubuntu i really want to use it.

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Blackbug (blackbug-nx) said : 		#12

you can try command
"sudo echo 4 > /proc/acpi/sony/brightness"

and read more at https://help.ubuntu.com/community/SonyVaioBrightness

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Daniel William (sunlightbeaming) said : 		#13

Thanks i manage to fix my brightness by installing a driver but now it says on my screen AMD unsupported hardware.