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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: UEFIintel
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-driXorg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 |
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。