[Bug 1908778] Re: black screen after grub menu

[FM]

Hello

the file is attached. Thanks a lot

** Attachment added: "prevboot.txt"
   https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1908778/+attachment/5450247/+files/prevboot.txt

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Title:
  black screen after grub menu

Status in plymouth package in Ubuntu:
  Incomplete

Bug description:
  After the grub menu and ubuntu selection, sometimes the screen turns
  black. To fix the problem, I installed ubuntu 20.04 and updated the
  bios. It didn’t solve the problem.

  
  Description:	Ubuntu 20.04.1 LTS
  Release:	20.04

  Dual boot : windows 10

  Plymouth:
    Installé : 0.9.4git20200323-0ubuntu6.2
    Candidat : 0.9.4git20200323-0ubuntu6.2
   Table de version :
   *** 0.9.4git20200323-0ubuntu6.2 500

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: plymouth 0.9.4git20200323-0ubuntu6.2
  ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73
  Uname: Linux 5.4.0-58-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.14
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission non accordée: '/var/log/boot.log'
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Dec 19 11:46:35 2020
  DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 13d3:3491 IMC Networks 
   Bus 001 Device 003: ID 04f2:b52b Chicony Electronics Co., Ltd USB2.0 VGA UVC WebCam
   Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. X756UXM
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic root=UUID=7b72ae0a-8bf6-4412-8dd1-4ae95e814d69 ro quiet splash
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic root=UUID=7b72ae0a-8bf6-4412-8dd1-4ae95e814d69 ro quiet splash
  SourcePackage: plymouth
  TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/19/2019
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X756UXM.203
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X756UXM
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX756UXM.203:bd04/19/2019:svnASUSTeKCOMPUTERINC.:pnX756UXM:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX756UXM:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.family: X
  dmi.product.name: X756UXM
  dmi.product.sku: ASUS-NotebookSKU
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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