跳转到主内容

1.83 GHz Core Duo 处理器 或 1.83, 2, 或 2.16 GHz Core 2 Duo处理器 A1208 (EMC 2104/2110/2114/2124)

201 个问题 查看全部

Screen brightness resetting to full

I recently upgraded my 1.83 GHz iMac to Snow Leopard (10.6.7). Changed hard drive to WD Caviar Green 500GB SATA II drive. And max out RAM to 2Gb Kingston memory.

The problem is that every time I start the machine, the screen brightness resets to full. It used to be OK under Tiger (10.4.11).

I have tried this possible solutions I found over the internet:

  • Resetting the System Management Controller (SMC)
  • Resetting PRAM and NVRAM
  • Booting in safe mode

None of them worked. What else can I try?

PS. I have applied all available updates (e.g. EFI firmware 1.2, etc)

回答此问题 我也有这个问题

这是一个好问题吗?

得分 -1
2条评论

Is it only during boot, or does it happen still in the OS? i.e. does the brightness go back to your previous setting once you're in the OS? Also, have you noticed any issues with your clock being reset lately?

完成的

It happens still in the OS. It always starts up in full brightness.

The clock does not reset, its on the right time, even without a network connection.

完成的

添加一条评论

1个答案

最有帮助的答案

I think Josh is right. Unplug the machine for an hour. Disconnect your internet connection. Restart the machine. Check the date and time and if wrong, change the PRAM battery.

这个答案有帮助吗?

得分 2

1条评论:

I just changed the PRAM battery and the problem persists.

完成的

添加一条评论

添加你的答案

Joszue 将永远感激不已
浏览统计数据:

过去 24 小时: 0

过去 7 天: 0

过去 30 天: 0

总计 884