okay did something unusual .. i copyed my apt sources and trust files from the working version sda1 to the copy on sda6 the added a series of new proposed updates including a new kernel version on reboot the updated sda6 worked as expected:
this was the upgrade package list: including a few earlier xorg/video driver upgrades from previous update for reference too! Install: libxcb-randr0:amd64 (1.13.1-2, automatic), xserver-xorg-video-intel:amd64 (2:2.99.917+git20180925-2, automatic), libxvmc1:amd64 (2:1.0.10-1, automatic), mesa-vulkan-drivers:amd64 (19.0.0-1ubuntu1, automatic) Upgrade: xserver-xorg-input-all:amd64 (1:7.7+19ubuntu11, 1:7.7+19ubuntu12), xserver-xorg:amd64 (1:7.7+19ubuntu11, 1:7.7+19ubuntu12), xserver-xorg-video-all:amd64 (1:7.7+19ubuntu11, 1:7.7+19ubuntu12), xorg:amd64 (1:7.7+19ubuntu11, 1:7.7+19ubuntu12), x11-common:amd64 (1:7.7+19ubuntu11, 1:7.7+19ubuntu12) End-Date: 2019-03-26 16:17:46 updated sources.list sources.d etc. Start-Date: 2019-03-26 17:16:25 Commandline: apt upgrade Requested-By: derk (1000) Install: libpath-tiny-perl:amd64 (0.108-1, automatic), linux-headers-5.0.0-8:amd64 (5.0.0-8.9, automatic), linux-headers-5.0.0-8-generic:amd64 (5.0.0-8.9, automatic), libxpresent1:amd64 (1.0.0-2, automatic), linux-image-5.0.0-8-generic:amd64 (5.0.0-8.9, automatic), linux-modules-5.0.0-8-generic:amd64 (5.0.0-8.9, automatic), libunicode-utf8-perl:amd64 (0.62-1, automatic), linux-modules-extra-5.0.0-8-generic:amd64 (5.0.0-8.9, automatic), libcapture-tiny-perl:amd64 (0.48-1, automatic) Upgrade: libpython3.7-minimal:amd64 (3.7.2-3, 3.7.3-1), perl-base:amd64 (5.28.1-4, 5.28.1-5), fuse:amd64 (2.9.8-1ubuntu1, 2.9.9-1ubuntu1), linux-headers-generic:amd64 (5.0.0.7.8, 5.0.0.8.9), linux-libc-dev:amd64 (5.0.0-7.8, 5.0.0-8.9), libcairo-gobject2:amd64 (1.16.0-3, 1.16.0-4), linux-image-generic:amd64 (5.0.0.7.8, 5.0.0.8.9), rtkit:amd64 (0.11-6, 0.12-4), libsqlite3-0:amd64 (3.27.2-1, 3.27.2-2), python3-gi-cairo:amd64 (3.30.4-1, 3.32.0-1), perl-modules-5.28:amd64 (5.28.1-4, 5.28.1-5), libpython3.7:amd64 (3.7.2-3, 3.7.3-1), python3.7:amd64 (3.7.2-3, 3.7.3-1), gdb:amd64 (8.2.90-0ubuntu1, 8.2.90.20190311-0ubuntu1), python3:amd64 (3.7.2-1, 3.7.3-1), libnm0:amd64 (1.15.2-0ubuntu2, 1.16.0-0ubuntu1), network-manager:amd64 (1.15.2-0ubuntu2, 1.16.0-0ubuntu1), xfwm4:amd64 (4.12.5-1ubuntu1, 4.13.1-3~19.04), libpython3.7-stdlib:amd64 (3.7.2-3, 3.7.3-1), libapparmor1:amd64 (2.12-4ubuntu10, 2.13.2-9ubuntu2), python3.7-minimal:amd64 (3.7.2-3, 3.7.3-1), libperl5.28:amd64 (5.28.1-4, 5.28.1-5), python3-minimal:amd64 (3.7.2-1, 3.7.3-1), libpython3-stdlib:amd64 (3.7.2-1, 3.7.3-1), libfuse2:amd64 (2.9.8-1ubuntu1, 2.9.9-1ubuntu1), lintian:amd64 (2.6.0, 2.11.0), libwebkit2gtk-4.0-37:amd64 (2.23.91-1, 2.24.0-1), python3-gi:amd64 (3.30.4-1, 3.32.0-1), gir1.2-webkit2-4.0:amd64 (2.23.91-1, 2.24.0-1), perl:amd64 (5.28.1-4, 5.28.1-5), rsync:amd64 (3.1.3-5, 3.1.3-6), apparmor:amd64 (2.12-4ubuntu10, 2.13.2-9ubuntu2), gdbserver:amd64 (8.2.90-0ubuntu1, 8.2.90.20190311-0ubuntu1), libcairo2:amd64 (1.16.0-3, 1.16.0-4), python3-gdbm:amd64 (3.7.2-3ubuntu1, 3.7.3-1ubuntu1), libjavascriptcoregtk-4.0-18:amd64 (2.23.91-1, 2.24.0-1), linux-generic:amd64 (5.0.0.7.8, 5.0.0.8.9), gir1.2-javascriptcoregtk-4.0:amd64 (2.23.91-1, 2.24.0-1) End-Date: 2019-03-26 17:18:12 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821609 Title: Xorg freeze - fails to start or stay going screen blanks-grub seems involved To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwallet-pam/+bug/1821609/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
