Lightroom classic update to 2.2 crashing at opening

[BJetter]

Running windows 10. Had to revert to previous version.

[JP Hess]

If you are referring to version 2.2, then that isn't Classic but is Lightroom CC (the cloud-based Lightroom). Is that what you mean?

[BJetter]

Im actually having the issue on both the classic and cloud versions. It is Classic I'm more concerned with.

[fkelly12054]

The problem seems to be a conflict between Lightroom 8.2 and an Nvidia driver for some graphics boards.  Here is a screen capture from the Windows event viewer after such a crash:

Faulting application name: Lightroom.exe, version: 8.2.0.10, time stamp: 0x5c518356

Faulting module name: nvwgf2umx.dll, version: 25.21.14.1891, time stamp: 0x5c5b3624

Exception code: 0xc0000005

Fault offset: 0x00000000003ce484

Faulting process id: 0x1e8c

Faulting application start time: 0x01d4c735e7171901

Faulting application path: C:\Program Files\Adobe\Adobe Lightroom Classic CC\Lightroom.exe

Faulting module path: C:\WINDOWS\System32\DriverStore\FileRepository\nvcvi.inf_amd64_060ebefc1760b49d\nvwgf2umx.dll

Report Id: 16dd8646-ba60-4588-8bc4-c7dfa9045451

Faulting package full name:

Faulting package-relative application ID:

The problem can be resolved by using device manager to disable the graphics card and driver.  However, with that approach Windows will re-enable it when you aren't looking and the crashes will re-occur.  Or you can use the Adobe Creative Cloud app, go into the item for Lightroom Classic CC click on Manage and other versions and reinstall 8.1.  That makes the bug go away.  You will still get nagged to update Lightroom to 8.2 but just ignore it until Adobe (and or Nvidia) fixes the problem.  Since Adobe could make Lightroom work with this graphics card and driver with 8.1, they should be able to revert some code and make it work with 8.2 (or 8.3, more likely). 

[fkelly12054]

Found:

Adobe Lightroom GPU Troubleshooting and FAQ

applied suggested solution of editing agprefs file to set

Change the line useAutoBahn = true to useAutoBahn = false

Updated to 8.2 from 8.1.  Crash I posted previously reoccurred consistently. 

And yes, this is Lightroom Classic 8.2 (not the 2.2 version).  Sorry if this is in the wrong thread. 

I am definitely using the latest (February 13, 2019) Nvidia Graphics card drivers.  Yes, according to the Troubleshooting and FAQ, I can disable the graphics card in device manager.  But the better solution seems to be to go back to 8.1 Lightroom.  And wait for Adobe or Nvidia to sort things out.