Bug#801191: nvidia-driver: gdm3 can't start anymore (acceleration check failed)

[Andreas Beckmann]

On 2015-10-07 13:53, Luca Boccassi wrote:
> On Wed, 2015-10-07 at 13:42 +0200, Manuel Bilderbeek wrote:
>> I upgraded from 340.93-1 to 340.93-3.

> That's a known issue. Workaround:
> 
> sudo adduser Debian-gdm video

Instead of just applying this "workaround" everywhere, can we try to dig
into this?

Did you upgrade any xorg packages at the same time or were you running
xserver-xorg-core 2:1.17.2-1.1 successfully with 340.93-3?

what happens if you replace /etc/nvidia/nvidia-modprobe.conf
with this content (what we had in 340.93-1, keep a copy of the current
file) and *do not add Debian-gdm to the video group* for this test:

===== 8< =====
alias nvidia nvidia-current
remove nvidia-current rmmod nvidia-uvm nvidia
===== >8 =====


Andreas