Flashing, Black Screen and Freeze under Load with PD12 (Not 11)

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DanL2

Bit poster
I've been able to consistently get Parallels 12 to fail with flashing, a black screen and/or freezing while under load with a Windows 10 Guest OS VM. I've adjusted all of the video memory settings to >768MB, plenty of memory/processor allocated, have not changed hypervisors but the problem persists.


When I do the exact same thing on PD 11, it works perfectly and recovers (albeit a little slow). I'm seriously thinking about ditching PD12 entirely and downgrading.

Any suggestions????

Thanks!
Dan
 
Exact same configuration here...windows 10 64bit and latest Parallels 12. Actually I've been able to confirm this is happening on EVERY computer at our firm when under load.
Parallels Desktop Version 12.1.3 (41532)
Window 10 x64 Pro Version 1607
Mac OS Sierra 10.12.1
 
I reinstalled Windows 10 twice. The first time I used the upgrade method to keep all apps and files, that didn't resolve anything.
After this I used the reset feature, with Keep Nothing. Once updates were installed, Tools, now everything is working great. Much faster, and quite smooth.

I am keeping Snapshots periodically, and if it breaks, I'll roll back.
 
I have abandoned Parallels 12 until we get a fix for this problem. In my case, Windows 10 Pro, 64 bit, very latest OSX, I get a black screen showing only the mouse pointer. I hope Parallels will email me when they have fixed the problem. It has gone on far too long.
Incidentally, I have failed to discover a method, a means, of reporting a bug or software issue. I don't have time to follow an unending stream of FAQs and KBs.
 
Absolutely agree with JimH6. Same problem - black screen with mouse on Mac and no way to contact support. An "..unending stream of FAQs and KBs" instead of support for a SHAREWARE product. Total shame. Glad that did'n buy.
 
IMG_4310.jpg I have the same issues. even a bit funnier. the display gets crazy, flickering, black and grey pixels. I was able to capture the screens using my phone camera.
 
I am also having this problem in Windows 10, the screen flashes, mouse won't operate screen goes to black and freezes
 
SteveP6 said:
I am also having this problem in Windows 10, the screen flashes, mouse won't operate screen goes to black and freezes
Click to expand...
Hi @SteveP6, can you please send us a problem report collected right after the error and a splash screen (Help menu > Send Technical Data...)? This will help us significantly, please reply me back with the report ID number.
 
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