crwdns2934243:0crwdne2934243:0 Shaun

crwdns2947189:0crwdne2947189:0:

Screen brightness not changing

crwdns2934249:0crwdne2934249:0:

I recently noticed that the screen brightness on my iMac 27” 2017 model not changing, in precise, from the darkest to 30% brightness bar, it can change, but after that, it just keep the same brightness even though the brightness bar can be increased. When I do reboot, and before screen turns bright, I can see some white spots light up from bottom edge of screen, which looks different from what shows on the top edge. Running Apple self hardware test, it didn’t report any issue. So, what could be wrong, screen backlight, inverter, etc.?

Thanks in advance!

Shaun

crwdns2866306:0crwdne2866306:0:

iMac 27" 2017

crwdns2915684:0crwdne2915684:0:

open

crwdns2934251:0crwdne2934251:0:

crwdns2934241:0crwdne2934241:0 Shaun

crwdns2947189:0crwdne2947189:0:

Screen brightness not changing

crwdns2934249:0crwdne2934249:0:

I recently noticed that the screen brightness on my iMac 27” 2017 model not changing, in precise, from the darkest to 30% brightness bar, it can change, but after that, it just keep the same brightness even though the brightness bar can be increased. When I do reboot, and before screen turns bright, I can see some white spots light up from bottom edge of screen, which looks different from what shows on the top edge. Running Apple self hardware test, it didn’t report any issue. So, what could be wrong, screen backlight, inverter, etc.?

Thanks in advance!

Shaun

crwdns2866306:0crwdne2866306:0:

iMac 27" 2017

crwdns2915684:0crwdne2915684:0:

open