Brightness can be set only on low setting

Question

苹果Thunderbolt Display显示器

27“显示屏，分辨率为2560 x 1440像素 Thunderbolt＆MagSafe电缆附件

160 个问题查看全部

Nejc Sitar @nejcsitar

声誉积分: 11

发帖于: 2017年2月9日

更多选项

Brightness can be set only on low setting

Hello community,

I have a Thunderbolt Display which was used with my Macbook Pro (Windows 8.1 via Boot Camp). 2 days ago it made a clicking sound and the picture went dark on the Windows OS. After that I took the Monitor home and tested it with my Macbook Pro at home (OS Sierra). I can set the brightness in the Apple OS but only from Dark - 1 -2 Points (using ctrl + f2), when I go on the next one (Number 3) it doesn´t get brighter and the picture starts to flicker. All the next brightness Settings do not change the flickering or get brighter.

Installed the Firmware 1.2 - didn´t do any change.

Maybe someone had a similar issue...

Thanks in advance!

Nejc

已回答！ 显示答案我也有这个问题

这是一个好问题吗？

是否

得分 0

2条评论

I lifted the LCD Pannel, checked all the Connections (couldn´t see any problems). Left it alone for 3 days. After that it started working as usual again....

由 Nejc Sitar 完成的 2017年3月1日

Did the issue ever come back?

由 Yana Nikitenko 完成的 2018年10月5日

添加一条评论

1个答案

已选择的解决方案

Tim downing @timdowning

声誉积分: 335

4

1

发帖于: 2017年3月1日

更多选项

It sounds like something went screwy with the power regulator that feeds the backlight.

这个答案有帮助吗？

是否

得分 0

3条评论:

Well after I unplugged the Monitor it showed the same symptoms... Can I somehow repair the power regulator for the backlight? Or do I have to change it?

由 Nejc Sitar 完成的 2017年3月3日

Have a similar issue. If display brightness is set to above 70% after several minutes of use the screen goes black. Works totally fine if the brightness is below 70% (approximately). Replaced the power supply and tried a separate TB cable neither helped resolve the issue.

由 Yana Nikitenko 完成的 2018年10月5日

Hi Guys, having similar Issue. TBD flashing sometimes and later blackouts. When i lower the brightness it seems to work ok. Did you find out anything about the hardware or software driven reason of this problem? cheers!

由 Bela Brandes 完成的 2020年4月5日

添加一条评论

I lifted the LCD Pannel, checked all the Connections (couldn´t see any problems). Left it alone for 3 days. After that it started working as usual again.... — Nejc Sitar
Well after I unplugged the Monitor it showed the same symptoms... Can I somehow repair the power regulator for the backlight? Or do I have to change it? — Nejc Sitar
Have a similar issue. If display brightness is set to above 70% after several minutes of use the screen goes black. Works totally fine if the brightness is below 70% (approximately). Replaced the power supply and tried a separate TB cable neither helped resolve the issue. — Yana Nikitenko
Hi Guys, having similar Issue. TBD flashing sometimes and later blackouts. When i lower the brightness it seems to work ok. Did you find out anything about the hardware or software driven reason of this problem? cheers! — Bela Brandes

苹果Thunderbolt Display显示器

Brightness can be set only on low setting

1个答案

添加你的答案