kern/51112: nouveau unknown Kepler chipset 0xb06070b1

[davshao%gmail.com@localhost]

>Number:         51112
>Category:       kern
>Synopsis:       nouveau unknown Kepler chipset 0xb06070b1
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 03 01:55:00 +0000 2016
>Originator:     David Shao
>Release:        NetBSD 7.99.28 GENERIC amd64
>Organization:
>Environment:
NetBSD xxxxxx.xxxxx 7.99.28 NetBSD 7.99.28 (GENERIC) #5: Sun Apr 24 20:46:13 PDT 2016  xxxxx@xxxxx.xxxxx:/usr/obj/sys/arch/amd64/compile/GENERIC amd64

>Description:
A NetBSD 7.99.28 GENERIC amd64 machine with an ASRock Z77M motherboard and an EVGA GEFORCE GT 730 graphics card fails to reach the login prompt with message similar to

drm kern cnt:nouveau![DEVICE][nouveau0]
unknown Kepler chipset 0xb06070b1

I wonder if the fix from

https://bugs.freedesktop.org/show_bug.cgi?id=86935

which is also incorporated into Linux 3.19 could help.  Apologies if this fix has already been applied.
>How-To-Repeat:

>Fix: