You have been subscribed to a public bug by rydberg (rydberg):
Binary package hint: gnome-power-manager
Many of the recent Apple MacBooks have a large number of LCD backlight
levels. The GPM uses XRandR to modify the backlight. However, the gpm-
brightness-xrandr smooth brightness function does not take the number of
brightness levels into account. On recent Macbooks, this leads to some
20000 brightness-set calls on startup, an activity that takes about one
and a half minute. During this time, GPM is not responsive. Attached is
a patch that introduces scaled stepping, which fixes the problem.
** Affects: gnome-power-manager (Ubuntu)
Importance: Undecided
Status: New
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GPM unresponsive for two minutes after startup on Macbooks
https://bugs.launchpad.net/bugs/289520
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