Mad Dog, I have noticed the same effect, but forgot until you just mentioned it. Hmmmm
Scott, the backlight appears to have no effect on the corner darkening phenom as far as I could tell from testing 280 and 540 screens. BTW, your report here is the first time _I've_ heard of a PB180 suffering from this problem. OK, where on this earth can we find TFT screen experts to help explain this phenom? Any ideas on a 'better' forum in which to ask _this_ question? No offense Duo/2400 listers, but we don't seem to have that sort of expertise here, eh? : >) Dammit, I really want to know!! Dan K On 9/22/02 Mad Dog wrote: > >Contuniung our investigations into why the active matrix black and >white Duo 280 screens show darkening, I have made another observation: > >I ran a screen until it showed a lot of the dark corners. Then, I >turned the Duo off for several minutes. When I turned it back on, I >noticed, during the boot, that I could see the finder icons and >background as it was before I shut the computer down. It appears >that the pixels in the screen arent "relaxing" back to the >transparent ground state. > > I dont what to make of this, but it might be important. > >Mad Dog >> >------------------------------ On 9/22/02 Scott wrote: > >I have found that turning off the 280 for awhile after the screen starts >to darken >causes those spots to go back to normal later on. The same thing happened >to my >PowerBook 180 when I left it running for several hours. I am not sure if >having the >backlight on is important or not. I try to run with it off if there is >sufficient >background illumination to save batteries at boring staff meetings. > >Scott ---------- Duo/2400 List, The friendliest place on the Net! A listserv for users and fans of Mac subportables. FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml> Be sure to visit Mac2400! <http://www.sineware.com/mac2400> To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> Need help from a real person? Try. <[EMAIL PROTECTED]> ---------- Dr. Bott | 10/100 Ethernet for your 2400 is finally here! MPC-100 | <http://www.drbott.com/prod/mpc100.html> RoadTools $30 PodiumPad available at Apple retail stores, $20 Traveler CoolPad at Staples. Both in white for iBooks at <http://roadtools.com> Midwest Mac Parts ][ <http://www.midwestmac.com> After-market parts for Macs. ][ 888-356-1104 ][ MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879! Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com>
