我从 Ubuntu 20.04 KVM 服务器克隆了一个 VM Ubuntu 20.04。然后我将其重新安装在另一台 Ubuntu 20.04 KVM 服务器上。原始服务器比第二台服务器更新。我从克隆中创建 VM 服务器没有遇到任何问题。我只是无法让“startx”工作。我试过“apt purge gdm3”和“apt install gdm3”。我甚至重新安装了“ubuntu-desktop”。“.Xauthority”是正确的。“Xorg -configure”也不起作用。我尝试使用“nomodeset”启动。无论哪个用户，它甚至无法与“root”一起使用 lspci - 00:01.0 VGA 兼容控制器：Red Hat, Inc. QXL 半虚拟显卡（修订版 04）原始和克隆的 VM 服务器上的情况相同。
lspci - 08:00.0 VGA 兼容控制器：Matrox Electronics Systems Ltd. MGA G200e [Pilot] ServerEngines (SEP1) (rev 05) - 较旧的服务器
lspci- 05:00.0 VGA 兼容控制器：Matrox Electronics Systems Ltd. MGA G200e [Pilot] ServerEngines (SEP1) (rev 42) - 较新的服务器
在我启动“startx”之后
X.Org X Server 1.20.9
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.15.0-140-generic x86_64 Ubuntu
Current Operating System: Linux 1099-VMUbuntu-2004 5.8.0-59-generic #66~20.04.1-Ubuntu SMP Thu Jun 17 11:14:10 UTC 2021 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-5.8.0-59-generic root=UUID=5e2188b4-e53f-4637-befa-279a3ce00e48 ro quiet splash vconsole.keymap=de-latin1-nodeadkeys video=640x480 vt.handoff=6
Build Date: 08 April 2021 12:29:22PM
xorg-server 2:1.20.9-2ubuntu1.2~20.04.2 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.38.4
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/home/auto/.local/share/xorg/Xorg.0.log", Time: Tue Apr 4 11:34:05 2023
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
(II) [KMS] Kernel modesetting enabled.
resizing primary to 1024x768
primary is 0x56473ac6ba90
xinit: connection to X server lost
waiting for X server to shut down (II) Server terminated successfully (0). Closing log file.
我比较了 /home/USER/.local/share/xorg 日志。它们直到最后都是相同的。
[ 2336.538] (II) event4 - spice vdagent tablet: device removed
[ 2336.584] (II) systemd-logind: got pause for 13:67
[ 2336.584] (II) systemd-logind: got pause for 13:65
[ 2336.584] (II) systemd-logind: got pause for 13:64
[ 2336.584] (II) systemd-logind: got pause for 13:66
[ 2336.584] (II) systemd-logind: got pause for 13:68
[ 2336.584] (II) systemd-logind: got pause for 226:0
[ 2336.584] (II) config/udev: removing device spice vdagent tablet
[ 2336.596] (II) UnloadModule: "libinput"
[ 2336.596] (II) systemd-logind: releasing fd for 13:68
[ 2336.607] (EE) systemd-logind: failed to release device: Device not taken
[ 2341.129] (II) UnloadModule: "libinput"
[ 2341.129] (II) systemd-logind: releasing fd for 13:66
[ 2341.156] (II) UnloadModule: "libinput"
[ 2341.156] (II) systemd-logind: releasing fd for 13:65
[ 2341.176] (II) UnloadModule: "libinput"
[ 2341.176] (II) systemd-logind: releasing fd for 13:67
[ 2341.216] (II) UnloadModule: "libinput"
[ 2341.216] (II) systemd-logind: releasing fd for 13:64
[ 2341.250] (II) Server terminated successfully (0). Closing log file