我对使用 Ubuntu 自定义桌面非常陌生，但我正在尝试让一些视频游戏运行。
我在 Nvidia 上使用 16.04，在经历了很多关于帧速率的问题以及无法全屏显示程序而不崩溃之后，我冒险卸载了 Unity DM 并切换到 LightDM。令人惊讶的是，这很有效，我可以全屏游戏，但我不能非全屏他们。他们将始终掌握所有计划。
关于此的其他主题建议使用 Ctrl+Alt+8 打开第二个 DM，然后在选项卡之间切换，但我尝试启动第二个 X 实例。
我尝试查找错误，我所能找到的只是有关无线耳机被检测为鼠标的内容，但我没有无线耳机，即使拔掉所有外围设备并仅使用笔记本电脑触摸板后，我也会遇到相同的错误。
# X :2
X.Org X Server 1.18.3
Release Date: 2016-04-04
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.13.0-86-generic x86_64 Ubuntu
Current Operating System: Linux laserbeam 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-4.4.0-34-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
Build Date: 18 May 2016 01:07:07AM
xorg-server 2:1.18.3-1ubuntu2.2 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.33.6
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: "/var/log/Xorg.2.log", Time: Wed Aug 24 08:46:16 2016
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE) BUG: triggered 'if (axnum >= dev->valuator->numAxes)'
(EE) BUG: ../../Xi/exevents.c:2100 in InitValuatorAxisStruct()
(EE)
(EE) Backtrace:
(EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4e) [0x556be5cd35ce]
(EE) 1: /usr/lib/xorg/Xorg (InitValuatorAxisStruct+0x67) [0x556be5c641e7]
(EE) 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fc57eee3000+0x5378) [0x7fc57eee8378]
(EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fc57eee3000+0x586f) [0x7fc57eee886f]
(EE) 4: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fc57eee3000+0x6d63) [0x7fc57eee9d63]
(EE) 5: /usr/lib/xorg/Xorg (ActivateDevice+0x4a) [0x556be5b69aaa]
(EE) 6: /usr/lib/xorg/Xorg (0x556be5b21000+0xa27c9) [0x556be5bc37c9]
(EE) 7: /usr/lib/xorg/Xorg (0x556be5b21000+0xb4d2b) [0x556be5bd5d2b]
(EE) 8: /usr/lib/xorg/Xorg (0x556be5b21000+0xb5313) [0x556be5bd6313]
(EE) 9: /usr/lib/xorg/Xorg (config_init+0x9) [0x556be5bd4b59]
(EE) 10: /usr/lib/xorg/Xorg (InitInput+0xbb) [0x556be5bb7ccb]
(EE) 11: /usr/lib/xorg/Xorg (0x556be5b21000+0x57bf1) [0x556be5b78bf1]
(EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7fc586ab9830]
(EE) 13: /usr/lib/xorg/Xorg (_start+0x29) [0x556be5b62f59]
(EE)
^[[18~Looking for python... 2.7.12 - wxversion(s): 3.0-gtk2
selected
(II) Server terminated successfully (0). Closing log file.
Traceback (most recent call last):
File "/usr/share/playonlinux/python/wrapper.py", line 149, in <module>
app = PlayOnLinuxApp(redirect=False)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 8628, in __init__
self._BootstrapApp()
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 8196, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
SystemError: wxEntryStart failed, unable to initialize wxWidgets! (Is DISPLAY set properly?)
Segmentation fault (core dumped)