** Attachment added: "91-Using-guarded-and-scaled-stepping-when-dimming.patch"
http://launchpadlibrarian.net/18940344/91-Using-guarded-and-scaled-stepping-when-dimming.patch
** Changed in: mactel-support
Assignee: (unassigned) => rydberg (rydberg)
** Changed in: mactel-support
Status: New => Fix Released
** Changed in: gnome-power-manager (Ubuntu)
Status: New => In Progress
--
GPM unresponsive for two minutes after startup on Macbooks
https://bugs.launchpad.net/bugs/289520
You received this bug notification because you are a member of Mactel
Support, which is a direct subscriber.
Status in Mactel Support: Fix Released
Status in “gnome-power-manager” source package in Ubuntu: In Progress
Bug description:
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.
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