问题：

在升级pkg包后，系统无法进入xfce等xwindows，表现为黑屏和看见鼠标，左上角有一个白字符块，键盘鼠标没有反应，整个系统卡住。但是可以ssh登录，内部的服务一切正常。

表现

处理过程：

输入xrandr

报错can't open display

现在的问题就是解决么有display的问题，大约是在某个时间段，FreeBSD修改了xwindows的某个部件。。。。

用ssh登进去测试：

startx

xauth:  file /home/skywalk/.serverauth.7188 does not exist

/usr/local/libexec/Xorg.wrap: Only console users are allowed to run the X server

xinit: giving up

xinit: unable to connect to X server: Connection refused

xinit: server error

安装wayfile试试

# pkg install wayfire wf-shell alacritty swaylock-effects swayidle wlogout kanshi mako wlsunset

照旧

咨询bing

You could do this (if your DISPLAY is :0):

$ export DISPLAY=:0

$ xrandr --listmonitors

$ xrandr your_command

输入set DISPLAY=:0

xrandr --listmonitors

还是Can't open display

重新学习FreeBSD手册

pciconf -lv|grep -B4 VGA
vgapci0@pci0:0:2:0:	class=0x030000 rev=0x09 hdr=0x00 vendor=0x8086 device=0x1616 subvendor=0x17aa subdevice=0x2226vendor     = 'Intel Corporation'device     = 'HD Graphics 5500'class      = displaysubclass   = VGA

查看是否biso还是uefi

sysctl machdep.bootmethod
machdep.bootmethod: UEFI

intel

pkg install drm-kmod
sysrc kld_list+=i915kms

降低intel显卡的cpu占用

pkg install libva-intel-driver mesa-libs mesa-dri

Xorg配置

Xorg Configuration

Xorg supports most common video cards, keyboards, and pointing devices.

Video cards, monitors, and input devices are automatically detected and do not require any manual configuration. Do not create xorg.conf or run a Xorg -configure step unless automatic configuration fails.

sudo Xorg -configure
_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE) 
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE) 
(EE) 
Please consult the The X.Org Foundation support at http://wiki.x.orgfor help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.

 intel显卡配置

Example 1. Select Intel® Video Driver in a File

/usr/local/etc/X11/xorg.conf.d/20-intel.conf

Section "Device"Identifier "Card0"Driver     "intel"
EndSection

pciconf -lv | grep -B3 display
vgapci0@pci0:0:2:0:	class=0x030000 rev=0x09 hdr=0x00 vendor=0x8086 device=0x1616 subvendor=0x17aa subdevice=0x2226vendor     = 'Intel Corporation'device     = 'HD Graphics 5500'class      = display

X -config

执行测试

sudo X -config /root/xorg.conf.new
密码：
_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE) 
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE) 
(EE) 
Please consult the The X.Org Foundation support at http://wiki.x.orgfor help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.

执行startx

重新删除Xorg和xfce包，重新安装，执行startx

报错no screens 

生成的X配置文件

cat /root/xorg.conf.new 
Section "ServerLayout"Identifier     "X.org Configured"Screen      0  "Screen0" 0 0InputDevice    "Mouse0" "CorePointer"InputDevice    "Keyboard0" "CoreKeyboard"
EndSectionSection "Files"ModulePath   "/usr/local/lib/xorg/modules"FontPath     "/usr/local/share/fonts/misc/"FontPath     "/usr/local/share/fonts/TTF/"FontPath     "/usr/local/share/fonts/OTF/"FontPath     "/usr/local/share/fonts/Type1/"FontPath     "/usr/local/share/fonts/100dpi/"FontPath     "/usr/local/share/fonts/75dpi/"FontPath     "catalogue:/usr/local/etc/X11/fontpath.d"
EndSectionSection "Module"Load  "glx"
EndSectionSection "InputDevice"Identifier  "Keyboard0"Driver      "kbd"
EndSectionSection "InputDevice"Identifier  "Mouse0"Driver      "mouse"Option	    "Protocol" "auto"Option	    "Device" "/dev/sysmouse"Option	    "ZAxisMapping" "4 5 6 7"
EndSectionSection "Monitor"Identifier   "Monitor0"VendorName   "Monitor Vendor"ModelName    "Monitor Model"
EndSectionSection "Device"### Available Driver options are:-### Values: <i>: integer, <f>: float, <bool>: "True"/"False",### <string>: "String", <freq>: "<f> Hz/kHz/MHz",### <percent>: "<f>%"### [arg]: arg optional#Option     "Accel"              	# [<bool>]#Option     "AccelMethod"        	# <str>#Option     "Backlight"          	# <str>#Option     "CustomEDID"         	# <str>#Option     "DRI"                	# <str>#Option     "Present"            	# [<bool>]#Option     "ColorKey"           	# <i>#Option     "VideoKey"           	# <i>#Option     "Tiling"             	# [<bool>]#Option     "LinearFramebuffer"  	# [<bool>]#Option     "HWRotation"         	# [<bool>]#Option     "VSync"              	# [<bool>]#Option     "PageFlip"           	# [<bool>]#Option     "SwapbuffersWait"    	# [<bool>]#Option     "TripleBuffer"       	# [<bool>]#Option     "XvPreferOverlay"    	# [<bool>]#Option     "HotPlug"            	# [<bool>]#Option     "ReprobeOutputs"     	# [<bool>]#Option     "XvMC"               	# [<bool>]#Option     "ZaphodHeads"        	# <str>#Option     "VirtualHeads"       	# <i>#Option     "TearFree"           	# [<bool>]#Option     "PerCrtcPixmaps"     	# [<bool>]#Option     "FallbackDebug"      	# [<bool>]#Option     "DebugFlushBatches"  	# [<bool>]#Option     "DebugFlushCaches"   	# [<bool>]#Option     "DebugWait"          	# [<bool>]#Option     "BufferCache"        	# [<bool>]Identifier  "Card0"Driver      "intel"BusID       "PCI:0:2:0"
EndSectionSection "Screen"Identifier "Screen0"Device     "Card0"Monitor    "Monitor0"SubSection "Display"Viewport   0 0Depth     1EndSubSectionSubSection "Display"Viewport   0 0Depth     4EndSubSectionSubSection "Display"Viewport   0 0Depth     8EndSubSectionSubSection "Display"Viewport   0 0Depth     15EndSubSectionSubSection "Display"Viewport   0 0Depth     16EndSubSectionSubSection "Display"Viewport   0 0Depth     24EndSubSection
EndSection

这样一通，启动后报错：no screens found 

至少不会卡死了，现在解决这个报错

解决no screens found 报错问题

装驱动试试

sudo pkg install libva-intel-media-driver

startx后同样报错

试试

intel-compute-runtime-llvm13

问题照旧

总结

一顿操作猛如虎，现在至少每次startx的时候，系统不会卡住了。

no screens found的问题，单开一篇，记录以后解决的步骤。