When you adjust the screen brightness, either in gnome or using the brightness keys on the keyboard, the sliders change but there is no difference on the actual brightness of the screen HW: 2011 27 inch iMac, smolt: http://www.smolts.org/client/show/pub_d9693c43-4ee8-4a8c-82a8-5332c6481f4d I am using Refit to boot into Fedora.
Still happens in 2.6.40....
There was a lot of work put into making F17 more usable on Apple hardware. Have you tried installing F17 to see if it improves things?
I've installed Fedora 17 on a 27-inch iMac and the brightness is not adjustable from the Gnome 3 Brightness and Lock settings menu at all.
Still happens in RC3, but it seems to remember the last screen brightness set by MacOSX now which makes the computer much more useable.
Same problems in Beta TC8.
Is this still happening with 3.8.x?
Tested on beta.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 19 kernel bugs. Fedora 19 has now been rebased to 3.11.1-200.fc19. Please test this kernel update and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
Same results on F20 Alpha.
I have the same issue on a Lenovo W530 running F20 Beta TC5.
You should probably open a new since since the HW is different.
Submitted bug 1026054
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 19 kernel bugs. Fedora 19 has now been rebased to 3.12.6-200.fc19. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 20, and are still experiencing this issue, please change the version to Fedora 20. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug has been in a needinfo state for more than 1 month and is being closed with insufficient data due to inactivity. If this is still an issue with Fedora 19, please feel free to reopen the bug and provide the additional information requested.