[Bug 1897273] Re: booting ubuntu groovy daily unusuable if left

[Chris Guiver]

I left the machine (2nd run) and came & typed this bug report on my
primary machine with real keyboard  (other end of the house).

On return to the pc, the screen is changing as if screensaver has kicked
in, and it's working (alas very slowly, black & white and image is not
as it should be), but it was changing..

On moving mouse, the (what I assume is screensaver) stops, image becomes
static and tiny bits of color appear..

https://photos.app.goo.gl/VPCmrk7npFbm4Vdg8

(color is some red top left, and slither of purple I assume is intended
background but only tiny slithers...

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https://bugs.launchpad.net/bugs/1897273

Title:
  booting ubuntu groovy daily unusuable if left

Status in ubuntu-meta package in Ubuntu:
  New

Bug description:
  currently I've not fully worked out the issue here, but I'll refine it
  (possibly tomorrow).

  booting Ubuntu daily on
  dell [optiplex] 990 (i7-2600, 16gb, nvidia geforce gt 6600 gt)

  results in a cursor on a window, with nothing that responds. No usable
  session, but screen is there, background a solid Ubuntu color, with
  normal cursor; alas nothing more.

  By switching to a terminal,  I can check that no squashfs errors
  occurred & explore the system (including file this bug), however
  switching back gets me screens like

  https://photos.app.goo.gl/LJg4qvS7VajRny4e8

  followed by hitting CTRL+ALT+T to open a terminal and the screen
  changes to

  https://photos.app.goo.gl/PJQxSABrNwg6UNGW9

  The CTRL+ALT+T was recognized, as the terminal can be seen in the
  pinky area top left of screen, but it's not usable...

  I wonder if it's the screensaver kicking in that screws up the
  session, but I've not worked that up yet.  I've been unable to watch
  the machine the whole time so I've not worked out pattern.

  
  ( FYI:  this is not the first boot or attempt. This has occurred now twice (same iso, just rebooting machine).  My intention tonight was explore https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1897173 via install on this box alas I can't install with it performing like this. A number of QA-test installs have been run on this system today, Lubuntu had no issues, Xubuntu failed due 1897173 )

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubuntu-desktop 1.457
  ProcVersionSignature: Ubuntu 5.8.0-19.20-generic 5.8.8
  Uname: Linux 5.8.0-19-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu47
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.452
  Date: Fri Sep 25 11:58:18 2020
  LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200925)
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-meta
  UpgradeStatus: No upgrade log present (probably fresh install)

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