Public bug reported:
I have just install Ubuntu 20.04 in a pc with Windows 10. I have used an
usb stick. Before the welcome window emerged the screen went black with
white letters completely frozen. Then I pressed the power button (one
or two quick presses) ans suddenly the welcome window emerged. All the
installation seemed to be fine. But when I restarted and I have chosen
"Ubuntu" in the first menu that has appeared when I started the computer
(I could choose between "Ubuntu", "Advanced Ubuntu", "Windows" and "UFI
Firmware") and then the screen went mostly black with purple and green
lines. Then I pressed the power button to quit (two quick presses) and
suddenly I could have access to my account and then everything was
normal. I have tried many times and always it's the same. I also have
found another way to skip the black-green-purple screen going to
"Advanced Ubuntu", then "Ubuntu recovery" and then "normal boot". If I
do it this way everything seems fine and I skip the frozen blac-green-
purple screen. What should I do to fix it?
So sorry if is confusing, I'm new in all of that and my English isn't
good. Thanks very much.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed May 6 13:53:28 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed
maybe-ubiquity quiet splash nomodeset ---
InstallationDate: Installed on 2020-05-06 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=es_ES.UTF-8
SHELL=/bin/bash
SourcePackage: ubiquity
Symptom: installation
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal ubiquity-20.04.15
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https://bugs.launchpad.net/bugs/1877112
Title:
black screen boot
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