[Bug 409664] Re: Screen Dimmed After Resume

Tim Eager tim.eager at gmail.com
Wed Apr 7 17:13:01 UTC 2010


Update - if I suspend/resume AFTER modifying /proc/.../LCD/brightness
directly, the display brightness is not dimmed after resume.

HOWEVER, if I unplug AC power and then plug back in, the brightness
reverts to the dimmed value.

For example, this is after resume (with a previously modified
/proc/.../brightness):

<PROMPT>$ cat /proc/acpi/video/VGA/LCD/brightness 
levels:  20 24 29 36 44 53 63 76 100
current: 100

AC adapter unplugged:

<PROMPT>$ cat /proc/acpi/video/VGA/LCD/brightness 
levels:  20 24 29 36 44 53 63 76 100
current: 29

AC adapter plugged in:

<PROMPT>$ cat /proc/acpi/video/VGA/LCD/brightness 
levels:  20 24 29 36 44 53 63 76 100
current: 44

-- 
Screen Dimmed After Resume
https://bugs.launchpad.net/bugs/409664
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