回答“Left speaker is much quieter than Right”My left speaker instead, just stop working; I wonder if it will be useful this same fix. How can I be sure if the caps is actually swollen?
回答“How to use iMac only with external monitor”yes, I can confirm: mirrored display setting works as per your needs.
回答“How to use iMac only with external monitor”same situation here: my iMac 21” 2007 started to shows bad lines on video, getting worsen untill all screen was unreadable; I configured an external monitor as mirror, permanently attached via mini Display Port > HDMI. Works well, even now that the boot from internal HD is failing one time over three. So I decided to clone OSX 10.11 (El Capitan) onto a 128GB microSD card, plugged via USB reader, making it primary boot disk, and guess? Works even faster!!! I suggest to try this , when you have no other options, to continue using this cool Mac.