Ubuntu
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  1. Bug #538256
  2. Comment #14

Comment 14 for bug 538256

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Daniel Glaser (daniel-glaser) wrote : Re: Screen brightness not controllable on Lenovo Ideapad S10-3 and U350

Included is a very dirty solution that really has poor performance (1-2 sec for action to take place), but in my opinion it is much better that typing commands on the shell to adjust brightness.

Attached is a bash script to handle the event generated by the /etc/acpi/events/ideapad-video that must be created with following content:

#----BEGIN------------------
# /etc/acpi/events/ideapad-video
# Called when the user presses the brightness fn-keys
#

event=video
action=/etc/acpi/ideapad-video.sh %e
#----END------------------

Should be possible to to also develop an executable with better performance, but I still hope that ACPI will be fixed in a later version ubuntu.

The acpi_fakekey command in fact gives no results, maybe someone knows hot to let ubuntu resond graphically in some way as it does with volume up/down.

Comments and improvements are welcome.

Cheers,
Daniel