我想在我的 xubuntu 上试用 kubuntu-desktop。所以我安装了它。重新启动时，屏幕上出现一条白线。我删除了之前安装的所有 kubuntu-desktop，但这条线仍然存在。这是一张截图。我该如何删除它？
我目前正在运行..........
android@android:~$ sudo python ps_mem.py
Private + Shared = RAM used Program
160.0 KiB + 42.5 KiB = 202.5 KiB gnome-pty-helper
224.0 KiB + 31.0 KiB = 255.0 KiB acpid
244.0 KiB + 28.0 KiB = 272.0 KiB sh
284.0 KiB + 45.5 KiB = 329.5 KiB agetty
332.0 KiB + 46.5 KiB = 378.5 KiB irqbalance
316.0 KiB + 88.5 KiB = 404.5 KiB cron
400.0 KiB + 87.0 KiB = 487.0 KiB rtkit-daemon
408.0 KiB + 81.5 KiB = 489.5 KiB systemd-timesyncd
432.0 KiB + 88.0 KiB = 520.0 KiB dbus-launch
532.0 KiB + 20.5 KiB = 552.5 KiB ssh-agent
232.0 KiB + 473.0 KiB = 705.0 KiB bamfdaemon-dbus
580.0 KiB + 135.5 KiB = 715.5 KiB gvfsd-metadata
604.0 KiB + 129.5 KiB = 733.5 KiB xfconfd
688.0 KiB + 110.0 KiB = 798.0 KiB dconf-service
700.0 KiB + 206.0 KiB = 906.0 KiB gconfd-2
772.0 KiB + 137.5 KiB = 909.5 KiB gvfs-mtp-volume-monitor
788.0 KiB + 124.5 KiB = 912.5 KiB gvfs-goa-volume-monitor
848.0 KiB + 141.5 KiB = 989.5 KiB dnsmasq
940.0 KiB + 69.5 KiB = 1.0 MiB systemd-logind
376.0 KiB + 651.0 KiB = 1.0 MiB avahi-daemon (2)
980.0 KiB + 230.0 KiB = 1.2 MiB sudo
1.0 MiB + 196.0 KiB = 1.2 MiB gvfs-gphoto2-volume-monitor
1.0 MiB + 312.0 KiB = 1.3 MiB gvfsd-trash
1.3 MiB + 90.0 KiB = 1.4 MiB bluetoothd
1.4 MiB + 173.0 KiB = 1.5 MiB accounts-daemon
1.2 MiB + 349.5 KiB = 1.5 MiB thermald
1.5 MiB + 79.5 KiB = 1.6 MiB rsyslogd
1.2 MiB + 450.5 KiB = 1.6 MiB gvfs-afc-volume-monitor
1.3 MiB + 478.5 KiB = 1.8 MiB mount.ntfs (2)
2.0 MiB + 39.0 KiB = 2.0 MiB dhclient
2.0 MiB + 130.0 KiB = 2.2 MiB systemd-udevd
1.6 MiB + 692.0 KiB = 2.2 MiB (sd-pam)
1.9 MiB + 452.5 KiB = 2.3 MiB gvfs-udisks2-volume-monitor
1.7 MiB + 621.0 KiB = 2.3 MiB panel-4-systray
1.7 MiB + 631.0 KiB = 2.4 MiB cups-browsed
2.0 MiB + 496.0 KiB = 2.5 MiB bash
2.3 MiB + 222.0 KiB = 2.5 MiB polkitd
2.0 MiB + 782.5 KiB = 2.8 MiB panel-9-netload
2.3 MiB + 509.5 KiB = 2.8 MiB dbus-daemon (2)
2.8 MiB + 97.5 KiB = 2.9 MiB systemd-journald
1.8 MiB + 1.1 MiB = 2.9 MiB whoopsie
2.9 MiB + 144.0 KiB = 3.0 MiB gvfsd-fuse
2.8 MiB + 295.5 KiB = 3.1 MiB gvfsd
2.3 MiB + 795.0 KiB = 3.1 MiB lightdm (2)
2.5 MiB + 669.0 KiB = 3.2 MiB wpa_supplicant
2.8 MiB + 720.5 KiB = 3.5 MiB xfsettingsd
3.6 MiB + 362.0 KiB = 3.9 MiB ModemManager
2.9 MiB + 1.2 MiB = 4.1 MiB xfce4-power-manager (2)
3.8 MiB + 510.0 KiB = 4.3 MiB upowerd
4.0 MiB + 341.0 KiB = 4.3 MiB gnome-keyring-daemon
3.7 MiB + 686.5 KiB = 4.4 MiB xfce4-volumed
2.5 MiB + 2.3 MiB = 4.8 MiB systemd (2)
3.8 MiB + 1.1 MiB = 4.9 MiB polkit-gnome-authentication-agent-1
4.2 MiB + 689.0 KiB = 4.9 MiB panel-6-actions
4.4 MiB + 722.5 KiB = 5.1 MiB panel-5-power-m
4.2 MiB + 1.0 MiB = 5.2 MiB xfce4-panel
5.2 MiB + 365.0 KiB = 5.6 MiB udisksd
4.9 MiB + 746.0 KiB = 5.6 MiB pulseaudio
4.3 MiB + 1.4 MiB = 5.7 MiB light-locker
5.2 MiB + 662.0 KiB = 5.9 MiB xfce4-session
5.1 MiB + 1.3 MiB = 6.3 MiB panel-1-whisker
6.1 MiB + 1.2 MiB = 7.3 MiB xfce4-notifyd
6.5 MiB + 1.0 MiB = 7.5 MiB NetworkManager
7.2 MiB + 1.8 MiB = 9.0 MiB bamfdaemon
7.8 MiB + 1.3 MiB = 9.1 MiB xfce4-terminal
6.8 MiB + 2.4 MiB = 9.1 MiB panel-17-pulsea
7.9 MiB + 1.5 MiB = 9.4 MiB xfwm4
11.1 MiB + 49.5 KiB = 11.1 MiB snapd
10.5 MiB + 2.5 MiB = 13.1 MiB nm-applet
12.8 MiB + 3.1 MiB = 15.9 MiB plank
17.6 MiB + 2.4 MiB = 20.0 MiB Thunar
18.7 MiB + 1.7 MiB = 20.4 MiB xfdesktop
25.4 MiB + 2.8 MiB = 28.2 MiB gnome-system-monitor
27.8 MiB + 1.6 MiB = 29.4 MiB viewnior
43.5 MiB + 4.4 MiB = 48.0 MiB Xorg
56.0 MiB + 4.2 MiB = 60.1 MiB geary
731.0 MiB + 75.2 MiB = 806.2 MiB opera (12)
---------------------------------
1.2 GiB
=================================
答案1
我必须禁用合成器中的“在停靠窗口下显示阴影”。
窗口管理器调整 > 合成器 > 在停靠窗口下显示阴影