New iMacs Monitors automaticlly de-calibrating
We have new 27 inch iMacs in our multi-user student labs with color managed monitors The new iMacs (v12,5) however now has an ambient light sensor. Users logging in for the first time on these iMac's always have the default for the new "Automatically adjust brightness (of monitor) as ambient light changes" check box ON, in the monitor control preferences. The problem this causes In our low-light level lab is that this auto feature then moves the brightness of the monitor down from our 120 cdm setting every time a new user logs on. Our IT Tech is still trying to find a way to have the auto brightness off as a default for new users but has so far been unsuccessful. Has anyone been able to solve this? Note: Students are given localized accounts on our iMacs that self erase after 8 day of non-use Running Mac OS 10.6.8 Peter Miles Photography Technician Fine Art Dept. College of Creative Arts Massey University 63 Wallace Street Wellington New Zealand.
Just a guess (but an educated one): Find a properly configured version of ~/Library/Preferences/com.apple.BezelServices.plist and place a copy of it into either: /System/Library/User Template/Non_localized/Library/Preferences AND/OR /System/Library/User Template/English.lproj/Library/Preferences sudo cp ~/Library/Preferences/com.apple.BezelServices.plist /System/Library/User\ Template/Non_localized/Library/Preferences/ sudo cp ~/Library/Preferences/com.apple.BezelServices.plist /System/Library/User\ Template/English.lproj/Library/Preferences/ He may also need to change ownership and/or permissions to work with any user. The idea here is to get that into the place from which new files and folders for a new login are copied from. And let us know if it worked. Rick Gordon ------------------ On 2/21/12 at 5:23 PM +1300, Peter Miles wrote in a message entitled "New iMacs Monitors automaticlly de-calibrating":
We have new 27 inch iMacs in our multi-user student labs with color managed monitors The new iMacs (v12,5) however now has an ambient light sensor.
Users logging in for the first time on these iMac's always have the default for the new "Automatically adjust brightness (of monitor) as ambient light changes" check box ON, in the monitor control preferences. The problem this causes In our low-light level lab is that this auto feature then moves the brightness of the monitor down from our 120 cdm setting every time a new user logs on.
Our IT Tech is still trying to find a way to have the auto brightness off as a default for new users but has so far been unsuccessful. Has anyone been able to solve this?
Note: Students are given localized accounts on our iMacs that self erase after 8 day of non-use Running Mac OS 10.6.8
-- ___________________________________________________ RICK GORDON EMERALD VALLEY GRAPHICS AND CONSULTING ___________________________________________________ WWW: http://www.shelterpub.com
Spot on Rick (unless I'm so tired I've become delusional), it works flawlessly!! Copied the BezelServices plist from the global library to the User Template Seems that setting that file via MCX etc doesn't get in early enough!! Will report back again once it's undergone some more testing. Cheers, Hamish. -- Hamish Ward Mac Software Image Development Information Technology Services Massey University Private Bag 11-222 Palmerston North Phone (06) 356-9099 extn 81143 021 1847 863 H.N.Ward@massey.ac.nz<mailto:H.N.Ward@massey.ac.nz> On 23/02/2012, at 2:58 PM, Rick Gordon wrote: Just a guess (but an educated one): Find a properly configured version of ~/Library/Preferences/com.apple.BezelServices.plist and place a copy of it into either: /System/Library/User Template/Non_localized/Library/Preferences AND/OR /System/Library/User Template/English.lproj/Library/Preferences sudo cp ~/Library/Preferences/com.apple.BezelServices.plist /System/Library/User\ Template/Non_localized/Library/Preferences/ sudo cp ~/Library/Preferences/com.apple.BezelServices.plist /System/Library/User\ Template/English.lproj/Library/Preferences/ He may also need to change ownership and/or permissions to work with any user. The idea here is to get that into the place from which new files and folders for a new login are copied from. And let us know if it worked. Rick Gordon ------------------ On 2/21/12 at 5:23 PM +1300, Peter Miles wrote in a message entitled "New iMacs Monitors automaticlly de-calibrating": We have new 27 inch iMacs in our multi-user student labs with color managed monitors The new iMacs (v12,5) however now has an ambient light sensor. Users logging in for the first time on these iMac's always have the default for the new "Automatically adjust brightness (of monitor) as ambient light changes" check box ON, in the monitor control preferences. The problem this causes In our low-light level lab is that this auto feature then moves the brightness of the monitor down from our 120 cdm setting every time a new user logs on. Our IT Tech is still trying to find a way to have the auto brightness off as a default for new users but has so far been unsuccessful. Has anyone been able to solve this? Note: Students are given localized accounts on our iMacs that self erase after 8 day of non-use Running Mac OS 10.6.8 -- ___________________________________________________ RICK GORDON EMERALD VALLEY GRAPHICS AND CONSULTING ___________________________________________________ WWW: http://www.shelterpub.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users@lists.apple.com<mailto:Colorsync-users@lists.apple.com>) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/h.n.ward%40massey.ac... This email sent to h.n.ward@massey.ac.nz
participants (3)
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Peter Miles
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Rick Gordon
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Ward, Hamish