Re: Panic after update: stable/12-n233561-42cb78bdd49 - n233682-a436245ccf1

On Sat, Aug 28, 2021 at 08:54:16PM -0700, David Wolfskill wrote:
> But only after starting X11.
> 
> The former (stable/12-n233561-42cb78bdd49) is from 10 August; the latter
> (stable/12-n233682-a436245ccf1) is from today (28 August).  I normally
> update this machine (my laptop) daily, but was out of town for a couple
> of weeks with fairly spotty connectivity (with a lot of cycling), and
> did not attempt updates during that period.
> ....

After a bit of relection on the issues (catalyzed, in part, by the
realization that merely reverting the OS back to
stable/12-n233561-42cb78bdd49 did not produce a "working system"), I
noticed that the other laptop has a slightly different video controller:

Failing:
g1-55(12.2-S)[1] pciconf -lv | grep -B 2 Quadro
vgapci0@pci0:1:0:0:     class=0x030000 card=0x05cc1028 chip=0x11fc10de rev=0xa1 hdr=0x00
    vendor     = 'NVIDIA Corporation'
    device     = 'GK106GLM [Quadro K2100M]'


Working:
g1-48(12.2-S)[8] pciconf -lv | grep -B 2 Quadro
vgapci0@pci0:1:0:0:     class=0x030000 card=0x17b01028 chip=0x13b610de rev=0xa2 hdr=0x00
    vendor     = 'NVIDIA Corporation'
    device     = 'GM107GLM [Quadro M1200 Mobile]'


So, on a hunch, I tried replacing x11/nvidia-driver (which had
recently been updated) with x11/nvidia-driver-390.

And that allowed X11 to work.

I plan to follow up in -ports@, Cc:ing folks involved in that update.

Peace,
david
-- 
David H. Wolfskill                              david@catwhisker.org
Life is not intended to be a zero-sum game.

See https://www.catwhisker.org/~david/publickey.gpg for my public key.