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[Bug 591651] Lenovo 3000 G410: Backlight brightness Fn-keys does not work.
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 1 Apr 2010 13:36:56 +0000
  • Message-id: <20100401133656.3D6B2CC7CD@xxxxxxxxxxxxxxxxxxxxxx>

--- Comment #5 from Thomas Renninger <trenn@xxxxxxxxxx> 2010-04-01 13:36:55 UTC
Can you do (as root):
rcacpid stop
cat /proc/acpi/event

the command should block.
Then hit the brightness buttons.
Do you see (one line per button hit) video events appearing then?
If not and this worked with 11.2, then for some reason these are not generated
You may need to reboot the system afterward, not sure how hal or others behave
if they cannot reach the acpid socket anymore.

You also should check:
cat /sys/module/video/parameters/brightness_switch_enabled
this should still be 1/Y/on by default.

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