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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

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Old 09-11-2009, 06:35 AM   #1
nezdravanul
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Registered: Jun 2008
Location: romania
Distribution: slackware
Posts: 14

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adjusting screen brightness does not work in slackware 13.0 on asus laptop M70 series


hello, i just installed slackware 13.0 on this asus m70 series laptop(intel duo t8300, 4gb ram, ati radeon hd 3650 graphics. the problem is that i can not change/adjust the brightness level of the monitor. i tried to do that by pressing Fn+F5/Fn+F6 - not working. Tried from powermanager in the task bar - not working. is something i should manually install or configure?

thank you.
 
Old 09-12-2009, 07:19 AM   #2
brianL
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Registered: Jan 2006
Location: Oldham, Lancs, England
Distribution: Slackware & Slackware64 14.1
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It's working OK on my Asus F5RL laptop. Could you run lsmod, and post the results then I can compare it with mine?
 
Old 09-15-2009, 02:51 AM   #3
nezdravanul
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Registered: Jun 2008
Location: romania
Distribution: slackware
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Thank you Brian for your reply. In the mean time I solved the problem. It was about the light-sensor that activates automatically at every boot and did not allowed me to manually change the brightness. So after some googling,I found that it should be turned off in order to get the Fn+F5/Fn+F6, powermanager and/or Kpowersave to work.That laptop is actually not mine and when I wrote the thread I did't knew that it has a light sensor. Anyway,I solved this in Ubuntu/Kubuntu (because slackware seems to be a little complicate for the laptop's owner) by installing sysfsutils and adding in /etc/sysfs.conf this line "devices/platform/asus-laptop/ls_switch = 0" and then I set /usr/bin/gnome-power-manager as not executable because of the conflict with kpowersave. Now Fn+F5/Fn+F6 and kpowersave work ok. I don't Know if this is the solution for slackware, but if someone get the same problem should try to turn off the light sensor. There is "echo 0 > /sys/devices/platform/asus-laptop/ls_switch" that works only for session but it should be made permanent somehow.

p.s. I am sorry for my bad english
 
Old 09-15-2009, 05:39 AM   #4
brianL
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Registered: Jan 2006
Location: Oldham, Lancs, England
Distribution: Slackware & Slackware64 14.1
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OK. Glad you sorted something out.
 
  


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