“已解决”从 18.04 升级到 20.04.1 LTS 后出现一系列问题

“已解决”从 18.04 升级到 20.04.1 LTS 后出现一系列问题

之前的系统:Ubuntu 18.04.3 LTS(现在设置图标下的关于下为 Ubuntu 20.04.1 LTS ----在 TimeShift 程序中显示 Ubuntu 18.04.3 LTS。)

  • 记忆:62. 直布罗陀
  • 处理器: 英特尔至强® CPU E3-1240 v5 @3.50 Hz 8
  • 显卡:livmpipe(LLVM 8.0 256 位)
  • GNOME:3.82.2
  • 操作系统类型:64 位
  • 磁盘:982.8

安装的磁盘:

  • 1.0 TB 磁盘 - Samsung SSD 97- Pro 1TB(操作系统所在位置)
  • 4.0 TB 硬盘 WDC WD4005FZBX-00K5WB0 (01.01A01) 标记为备份。用于备份 Ubuntu 18 和 Windows XP 中的文档。在运行/时间移位/备份时安装
  • 4.0 TB 硬盘 WDC WD4002FYYZ-01B7CB1 (01.01M03) 标记为 Backup1。用于在升级前备份 ubuntu 18。未安装
  • 999 GB 块设备 999 GB — 837 GB 可用(16.2% 已用)/dev/ubuntu-vg/root
  • 1.0 GB 块设备 .0 GB (1,023,410,176 字节) /dev/ubuntu-vg/swap_1

2020 年 10 月 28 日将 Ubuntu 18.04.3 LTS 升级至 Ubuntu 20.04.28。

问题

  1. 将程序从一个显示屏移动到第二个显示屏将保持登录状态,但会看到登录屏幕的短暂闪烁,或者在某些情况下,程序将退出回到登录屏幕。

从 Ubuntu 网站下载 Ubuntu 20 到硬盘并从硬盘安装。下载 Ubuntu 20 并安装时没有发现任何错误,但在安装过程中却消失了。似乎没有出现包管理器问题。有没有办法确定?

已解决的问题:

1. Main problem the settings icon on the side menu --- when you double click in to open – screen goes to main log in screen.  
2. LibreOffice when doing a save will go back to main log in screen.  Seems to be no pattern sometimes it saves but 95 % time does not since upgrade to Ubuntu 20.  Have upgraded LibreOffice to 7.0.3.1.  Did not eliminated the problem.
3. After upgrade in LibreOffice the problem of going back to main log in screen is happening on pdf opened and saved from the internet.
4. Sound will work sometimes or will show a dummy icon for sound.  If you open the terminal and imput the following in the sound returns:  pulseaudio --kill; sleep 2s; sudo alsa force-reload ; pulseaudio –start     kill; sleep 2s; sudo alsa force-reload ; pulseaudio –start
5. kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec]
6. [sudo] password for rob: 
7. Sorry, try again.
8. [sudo] password for rob: 
9. Unloading ALSA sound driver modules: snd-seq-midi snd-seq-midi-event snd-seq snd-rawmidi snd-seq-device snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer (failed: modules still loaded: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer).
10. Loading ALSA sound driver modules: snd-seq-midi snd-seq-midi-event snd-seq snd-rawmidi snd-seq-device snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer.
11. E: [pulseaudio] main.c: Too many arguments.
12. 
13. I believe this is part of a bug referred to here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875252.
14. Terminal screen readout: Unloading ALSA sound driver modules: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer (failed: modules still loaded: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer).
15. Loading ALSA sound driver modules: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer.
16. Tried to play a mp4 video went to log in screen.  Other mp4 videos have played.
17. Backup Failed:  Error creating directory /mnt/4d811811-c910-4652-b45e-968d5a5ffe3f/Backup: Permission denied.  Changed disks permissions.
18. When printing it shows in the box:print to file
19. HP Laser Jet M505 – this one prints.
20. HP Laser Jet M505 – this one does not print
21. Both displays flickering – changed to recommended drivers.       
   

以下是我目前所做的工作:

当我在 11 月 1 日左右升级 LibreOffice 时。我打开了软件和更新管理器:
检查除源代码之外的所有存储库都已启用;切换到最快的下载服务器。启用 Canonical Partners 存储库。更新选项卡 – 注册所有更新类型 – 已启用。启用 livepatch – 未启用。没有要更新的驱动程序。安装了 Synaptic 包管理器。
安装了编解码器、MS 字体、flash 和其他有用的软件包。安装了 flash 播放器。
减少交换使用 vm.swappiness = 10。设置防火墙安装了 gufw 包。启用防火墙。确实从终端完成了系统更新。从那时起,它至少通过 livepatch 更新过一次。然后使用“Timeshift”程序恢复到 Ubuntu 18,但系统说它仍在 Ubuntu 20.04.1 LTS。Timeshift 程序显示 Ubuntu 18。然后通过终端更新所有内容,包括 snap

更新程序今天 (2020/11/20) 进行了更新

任何帮助,将不胜感激。

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