I can't reproduce the problem any more with 340 either:
~$ apt-cache policy nvidia-340 nvidia-340: Installed: 340.107-0ubuntu0.18.04.2 Candidate: 340.107-0ubuntu0.18.04.2 Version table: *** 340.107-0ubuntu0.18.04.2 400 400 http://archive.ubuntu.com/ubuntu bionic-proposed/restricted amd64 Packages 100 /var/lib/dpkg/status 340.107-0ubuntu0.18.04.1 500 500 http://archive.ubuntu.com/ubuntu bionic-updates/restricted amd64 Packages 340.106-0ubuntu3 500 500 http://archive.ubuntu.com/ubuntu bionic/restricted amd64 Packages
:~$ apt-cache policy xserver-xorg-hwe-18.04 xserver-xorg-hwe-18.04: Installed: 1:7.7+19ubuntu8~18.04.2 Candidate: 1:7.7+19ubuntu8~18.04.2 Version table: *** 1:7.7+19ubuntu8~18.04.2 500 500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/status
I can't reproduce the problem any more with 340 either:
~$ apt-cache policy nvidia-340 0ubuntu0. 18.04.2 0ubuntu0. 18.04.2 0ubuntu0. 18.04.2 400 archive. ubuntu. com/ubuntu bionic- proposed/ restricted amd64 Packages dpkg/status 107-0ubuntu0. 18.04.1 500 archive. ubuntu. com/ubuntu bionic- updates/ restricted amd64 Packages 106-0ubuntu3 500 archive. ubuntu. com/ubuntu bionic/restricted amd64 Packages
nvidia-340:
Installed: 340.107-
Candidate: 340.107-
Version table:
*** 340.107-
400 http://
100 /var/lib/
340.
500 http://
340.
500 http://
:~$ apt-cache policy xserver- xorg-hwe- 18.04 xorg-hwe- 18.04: ~18.04. 2 ~18.04. 2 ~18.04. 2 500 archive. ubuntu. com/ubuntu bionic-updates/main amd64 Packages dpkg/status
xserver-
Installed: 1:7.7+19ubuntu8
Candidate: 1:7.7+19ubuntu8
Version table:
*** 1:7.7+19ubuntu8
500 http://
100 /var/lib/