Hello Everyone,
I have an issue with my multi-monitor setting here on Deepin 15.7, I have an Dell U3415W connected via Display Port cable to my Radeon r9 390x, with that connection everything is fine, but when I connect my 27" apple led cinema display to my Dell (via the DisplayPort output conncection) in order to extend image and still have a 60Hz refresh rate (due to the lack of output options on my 390X) I end up having audio and access to the built-in camera on the Apple display, but no image.
Can you help me to figure this one out please?
中文 
I have an issue with my multi-monitor setting here on Deepin 15.7, I have an Dell U3415W connected via Display Port cable to my Radeon r9 390x, with that connection everything is fine, but when I connect my 27" apple led cinema display to my Dell (via the DisplayPort output conncection) in order to extend image and still have a 60Hz refresh rate (due to the lack of output options on my 390X) I end up having audio and access to the built-in camera on the Apple display, but no image.
Can you help me to figure this one out please?