G5 iMac dim display
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From: Steve on 21 Jun 2010 13:17 Roughly 90% of the time when I power up my G5 iMac the display is dimmed. The display preferences shows the brightness slider all the way to the left, as dim as possible. I slide the slider to 80% brightness and continue using the machine until I power it down. Can anyone tell me why the preference setting isn't sticking? Thanks. -Steve
From: David Empson on 22 Jun 2010 20:14 Steve <hexnut4(a)gmail.com> wrote: > Roughly 90% of the time when I power up my G5 iMac the display is > dimmed. The display preferences shows the brightness slider all > the way to the left, as dim as possible. I slide the slider to 80% > brightness and continue using the machine until I power it down. > > Can anyone tell me why the preference setting isn't sticking? Two possibilities occur to me: (a) There is a setting in the PRAM which is stuck on low brightness. Try resetting the PRAM by holding down Command-Option-P-R at startup, until you hear the startup chime a second time. (b) The file in which System Preferences stores that setting is damaged in some way, which is preventing the setting change from being saved, and it is reloading the incorrect low brightness setting each time you start up. I'd have to do some research to locate the file in question and don't have time right now, but it is probably a user-specific setting located in a file somewhere in the Library/Preferences folder inside your home folder. -- David Empson dempson(a)actrix.gen.nz
From: Steve on 23 Jun 2010 12:03 David Empson <dempson(a)actrix.gen.nz> wrote: >Steve <hexnut4(a)gmail.com> wrote: > >> Roughly 90% of the time when I power up my G5 iMac the display is >> dimmed. The display preferences shows the brightness slider all >> the way to the left, as dim as possible. I slide the slider to 80% >> brightness and continue using the machine until I power it down. >> >> Can anyone tell me why the preference setting isn't sticking? > >Two possibilities occur to me: > >(a) There is a setting in the PRAM which is stuck on low brightness. > >Try resetting the PRAM by holding down Command-Option-P-R at startup, >until you hear the startup chime a second time. > >(b) The file in which System Preferences stores that setting is damaged >in some way, which is preventing the setting change from being saved, >and it is reloading the incorrect low brightness setting each time you >start up. > >I'd have to do some research to locate the file in question and don't >have time right now, but it is probably a user-specific setting located >in a file somewhere in the Library/Preferences folder inside your home >folder. I will try resetting the PRAM. I noticed when I first turn the machine on the screen is bright for a bit but dims at or before the login screen. This indicates to me that it isn't user specific. Thanks for the PRAM suggestion, I should have thought of that <slaps head>. -Steve
From: Jolly Roger on 24 Jun 2010 15:24
In article <hvtb8n$am2$1(a)news.eternal-september.org>, Steve <hexnut4(a)gmail.com> wrote: > David Empson <dempson(a)actrix.gen.nz> wrote: > >Steve <hexnut4(a)gmail.com> wrote: > > > >> Roughly 90% of the time when I power up my G5 iMac the display is > >> dimmed. The display preferences shows the brightness slider all > >> the way to the left, as dim as possible. I slide the slider to 80% > >> brightness and continue using the machine until I power it down. > >> > >> Can anyone tell me why the preference setting isn't sticking? > > > >Two possibilities occur to me: > > > >(a) There is a setting in the PRAM which is stuck on low brightness. > > > >Try resetting the PRAM by holding down Command-Option-P-R at startup, > >until you hear the startup chime a second time. > > > >(b) The file in which System Preferences stores that setting is damaged > >in some way, which is preventing the setting change from being saved, > >and it is reloading the incorrect low brightness setting each time you > >start up. > > > >I'd have to do some research to locate the file in question and don't > >have time right now, but it is probably a user-specific setting located > >in a file somewhere in the Library/Preferences folder inside your home > >folder. > > I will try resetting the PRAM. I noticed when I first turn the machine > on the screen is bright for a bit but dims at or before the login screen. > This indicates to me that it isn't user specific. > > Thanks for the PRAM suggestion, I should have thought of that <slaps head>. > > -Steve I wonder: Could it also be some sort of color profile issue? -- Send responses to the relevant news group rather than email to me. E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts. JR |