It is not working properly on Dell U2212HM,
When i disable my Dell monitor, dell's wallpaper will come to my main screen(imac 27 2012 mid), sometimes dell's monitor goes blank for few seconds than show up screen again and i have to enable dell monitor and diable again.
So i tried reboot my computer, it worked for few times, after that, it has same problem like i wrote before.
This screen shot can show i disabled my dell monitor, but my monitor stil showing.
One thing,
i contact my monitor with Mini port to hdmi adapter and hdmi to DVI cable. Will it cause this problem? i bought another adapter, i will try it later, if this caused this problem, i will be back for update.
Eun
commented
9 years ago
It is not working properly on Dell U2212HM, When i disable my Dell monitor, dell's wallpaper will come to my main screen(imac 27 2012 mid), sometimes dell's monitor goes blank for few seconds than show up screen again and i have to enable dell monitor and diable again. So i tried reboot my computer, it worked for few times, after that, it has same problem like i wrote before.
This screen shot can show i disabled my dell monitor, but my monitor stil showing.