Reporting the installation of Mojave on a late 2009 11,1 27" iMac.
Everything works, including WiFi, video acceleration, Bluetooth and Dark Mode (with the well-known minor glitches).
There's a feature that is broken, though, at that it is absolutely necessary for me: Target Display Mode.
On the desk I have the iMac and a gaming PC, and I use that Mac as a monitor when I play, pressing CMD+F2.
On High Sierra it worked but with Mojave installed, the GPU tries to switch but after a couple seconds of black screen, the macOS desktop appears again. Same behavior if I hot plug the video cable of the PC instead of using the keyboard shortcut to invoke the switch.
Anyone in this thread uses that feature and is experiencing the same issue?
Do you think that it's due to the video legacy patch and it can be fixed?
If not, the only workaround that I can imagine is creating a small partition in order to keep High Sierra installed only for that use. Is it doable or that feature will be broken also on High Sierra (maybe due to the fact that the patch modified the EFI)?
Thank you for your hard work and for any help that you could give me.
A.
Everything works, including WiFi, video acceleration, Bluetooth and Dark Mode (with the well-known minor glitches).
There's a feature that is broken, though, at that it is absolutely necessary for me: Target Display Mode.
On the desk I have the iMac and a gaming PC, and I use that Mac as a monitor when I play, pressing CMD+F2.
On High Sierra it worked but with Mojave installed, the GPU tries to switch but after a couple seconds of black screen, the macOS desktop appears again. Same behavior if I hot plug the video cable of the PC instead of using the keyboard shortcut to invoke the switch.
Anyone in this thread uses that feature and is experiencing the same issue?
Do you think that it's due to the video legacy patch and it can be fixed?
If not, the only workaround that I can imagine is creating a small partition in order to keep High Sierra installed only for that use. Is it doable or that feature will be broken also on High Sierra (maybe due to the fact that the patch modified the EFI)?
Thank you for your hard work and for any help that you could give me.
A.