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s.m.t.

macrumors 6502
Original poster
Mar 7, 2010
285
20
I know a flashed 980ti from macvidcards will produce a boot screen on a standard 1080P monitor. But does anyone have experience have a Dell P2415Q and a flashed 980ti that can confirm you still see the bootscreen? I have it connected via DP in SST mode and can drive a 60Hz refresh rate...
 

hfg

macrumors 68040
Dec 1, 2006
3,621
311
Cedar Rapids, IA. USA
I have the MVC 980ti and the Dell 4K P2715Q and I see the boot screen and it is working fine in OS X and Windows 10 on a MacPro 5,1 2012. I am currently running the 4K monitor from DP, and the secondary monitor from a DVI port (since the cable was already routed through my desk).

The only issue I have, which others have also reported, is that once in a great while the monitor will not come on from computer sleep. Pulling and replacing the power cord causes the Dell monitor to reset and it works again. I know OS X can see the monitor is there, as I can blindly login and my second monitor (a Dell U2713HM) will switch from the lock screen to active display. If the primary monitor was truly "off", the login screen would switch to the secondary display, as it temporarily does when the power cord is removed and reinserted.
 

s.m.t.

macrumors 6502
Original poster
Mar 7, 2010
285
20
I have the MVC 980ti and the Dell 4K P2715Q and I see the boot screen and it is working fine in OS X and Windows 10 on a MacPro 5,1 2012. I am currently running the 4K monitor from DP, and the secondary monitor from a DVI port (since the cable was already routed through my desk).

The only issue I have, which others have also reported, is that once in a great while the monitor will not come on from computer sleep. Pulling and replacing the power cord causes the Dell monitor to reset and it works again. I know OS X can see the monitor is there, as I can blindly login and my second monitor (a Dell U2713HM) will switch from the lock screen to active display. If the primary monitor was truly "off", the login screen would switch to the secondary display, as it temporarily does when the power cord is removed and reinserted.
Thanks for the confirmation! I have been using this combination for a year now, just getting ready to have mine flashed. I can't wait to have a bootscreen. So I am guessing you can boot to single user mode okay?

I have to put the GT120 in to update the driver, but OS X crashes if I switch to the web driver. So I have to do the dance each time I need to update.

I have been having that issue with mine as well. And recently it has been doing that when rebooting between Windows 10 and OS X. I have mine plugged in to a power strip that has an always on outlet that the Mac Pro is connected to, so I can just hit the switch on the strip.
 

hfg

macrumors 68040
Dec 1, 2006
3,621
311
Cedar Rapids, IA. USA
I have no trouble updating the web driver. I make sure to download the needed driver prior to updating OS X. Then, after rebooting, the video is extremely sluggish at first, I run the web driver update, reboot, and everything seems to be back to normal again (at least for all updates so far). I usually get the driver from the MVC website ... but if I delay updating by a day or so, I get a notification from Nvidia with a link to update.
 

s.m.t.

macrumors 6502
Original poster
Mar 7, 2010
285
20
I am guessing the GT120 is not 4K compatible... I could never get it working on the p2415Q... I have to connect a second monitor to update... And the latest Nvidia drivers on the Windows side also don't support it... It will cause a blue screen... So looking forward to not needing it to see the bootscreen...

Sounds like you are able to drive the card and monitor combination using the native driver, that will make updating the driver alot easier...

One other question, do you get a signal and display on the p2415q in Windows 10 if you completely uninstall the Nvidia drivers? I also had to use the secondary monitor to do my initial Windows install and could never get the p2415q to display until I installed the Nvidia drivers... As long as I just update them I am fine, but if I choose to do a clean update option the screen goes black and I never get a display again until I connect another non 4K monitor...
 

s.m.t.

macrumors 6502
Original poster
Mar 7, 2010
285
20
Anyone else with this combination also dual boot into Windows 10?

If so do you have trouble getting a signal if the nvida drivers are not installed?
 

s.m.t.

macrumors 6502
Original poster
Mar 7, 2010
285
20
Well got my card back from MVC and happy to report I also get a boot screen on the p2415q.

Incidentally, I also completely uninstalled the nvidia drivers in Windows and didn't loose display signal. Not sure how the MVC flashed card would impact that, but it is the only thing different this time. I disabled windows updates because it kept trying to install a graphics driver that would crash Windows....
 
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