GeForce GTX 750 Ti upgraded to unsupported

[Russell L. Carter]

Greetings,

Since I upgraded to 11/stable from 10/stable, it appears that my video
card is no longer supported by either nvidia-driver or nvidia-driver-340:

  77.208] (WW) NV: Ignoring unsupported device 0x10de1380 (GM107 
[GeForce GTX 750 Ti]) at 01 at 00:00:0

The error message is identical for either.  Either port provides
graphics via the VESA driver.

However, a typical error is:

rcarter at feyerabend> firefox
Xlib:  extension "GLX" missing on display ":0"

Any ideas?

Thanks,
Russell