[Bug 257827] Re: brightness changes twice when using hotkeys

[pavolzetor]

It is quite strange, buttons change it by twice steps, but this:
sudo sh -c "echo 10 > /sys/devices/virtual/backlight/acpi_video0/brightness"
sudo sh -c "echo 9 > /sys/devices/virtual/backlight/acpi_video0/brightness"
and so on can change brightness properly

-- 
brightness changes twice when using hotkeys
https://bugs.launchpad.net/bugs/257827
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