I have D300 Mac Pro(8-core, 64gb, 1Tb SSD) and I also experience the same symptoms as described in this thread "displayModeDidChange failed: set_display_mode_and_vram failed!" This normally happens several times per day(only once if I'm very lucky), since I like to set netflix or youtube etc. in the background while working... Very frustrating and I haven't had any luck with suggested solutions in this thread, hoping that Mojave would solve the issues, but I also ordered sonnet egpu.
Also I don't feel comfortable selling this trashcan, while knowing this problem persists. Hopefully the egpu will be a solution to have a working system.
My monitor is Philips BDM4037U and with this rant I just wanted to add my voice to this and maybe someone at Apple bothers to read this thread and address the issue, since calling, sending kernel crash and bug reports don't seem to cause any actions. When I get the freeze I can recover by reconnect the displayport cable, which causes system to reboot and gives me possibility to send crash report, which is not the case if I just do the hard reset. I also created a "script" to my desktop, which accomplishes the same without reconnecting the displayport, but I need that part of the desktop to be visible all the time to be able to double click it when the freeze happens.
If anyone has already tried the egpu solution and had success with it, I would love to have confirmation before spending any more money on this...
Also I don't feel comfortable selling this trashcan, while knowing this problem persists. Hopefully the egpu will be a solution to have a working system.
My monitor is Philips BDM4037U and with this rant I just wanted to add my voice to this and maybe someone at Apple bothers to read this thread and address the issue, since calling, sending kernel crash and bug reports don't seem to cause any actions. When I get the freeze I can recover by reconnect the displayport cable, which causes system to reboot and gives me possibility to send crash report, which is not the case if I just do the hard reset. I also created a "script" to my desktop, which accomplishes the same without reconnecting the displayport, but I need that part of the desktop to be visible all the time to be able to double click it when the freeze happens.
If anyone has already tried the egpu solution and had success with it, I would love to have confirmation before spending any more money on this...