解决sddm Failed to read display number from pipe

解决sddm Failed to read display number from pipe

0x0. 起因

元旦学校放假,回家后就给电脑更新了一下.没想到重启后图形界面再起不能…

0x1. 现象

开机后不能reach到graphical.target,还接连冒出Core Dump,其他一切正常.可以通过Ctrl+Alt+Fx切到传统的纯文字tty.

重新安装sddm/xorg不能解决.

因为可以进终端,所以还不是全无希望!

0x2. 解决

尝试查看sddm的日志:

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journalctl -u sddm --since '10 minutes ago'
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systemd[1]: Started Simple Desktop Display Manager.
sddm[513]: Initializing...
sddm[513]: Starting...
sddm[513]: Logind interface found
sddm[513]: Adding new display...
sddm[513]: Loaded empty theme configuration
sddm[513]: Xauthority path: "/run/sddm/xauth_wwpcQg"
sddm[513]: Using VT 2
sddm[513]: Display server starting...
sddm[513]: Writing cookie to "/run/sddm/xauth_wwpcQg"
sddm[513]: Running: /usr/bin/X -dpi 0 -background none -seat seat0 vt2 -auth /run/sddm/xauth_wwpcQg -noreset -displayfd 16
sddm[513]: Failed to read display number from pipe
sddm[513]: Display server stopping...
sddm[513]: Attempt 1 starting the Display server on vt 2 failed
sddm[513]: Display server starting...
sddm[513]: Writing cookie to "/run/sddm/xauth_wwpcQg"
sddm[513]: Running: /usr/bin/X -dpi 0 -background none -seat seat0 vt2 -auth /run/sddm/xauth_wwpcQg -noreset -displayfd 16
sddm[513]: Failed to read display number from pipe
sddm[513]: Display server stopping...
sddm[513]: Attempt 2 starting the Display server on vt 2 failed
sddm[513]: Display server starting...
sddm[513]: Writing cookie to "/run/sddm/xauth_wwpcQg"
sddm[513]: Running: /usr/bin/X -dpi 0 -background none -seat seat0 vt2 -auth /run/sddm/xauth_wwpcQg -noreset -displayfd 16
sddm[513]: Failed to read display number from pipe
sddm[513]: Display server stopping...
sddm[513]: Attempt 3 starting the Display server on vt 2 failed
sddm[513]: Could not start Display server on vt 2
sddm[513]: Signal received: SIGTERM
systemd[1]: Stopping Simple Desktop Display Manager...
systemd[1]: sddm.service: Deactivated successfully.
systemd[1]: Stopped Simple Desktop Display Manager.
systemd[1]: Started Simple Desktop Display Manager.

注意到

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Running: /usr/bin/X -dpi 0 -background none -seat seat0 vt2 -auth /run/sddm/xauth_wwpcQg -noreset -displayfd 16
Failed to read display number from pipe

发现每次失败前都尝试运行/usr/bin/X,推测和xorg有关

遂尝试查看xorg日志:

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sudo tail /var/log/Xorg.0.log -n 50

迎面一个报错,大概长这样:

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/usr/lib/gdm-x-session[114514]: (EE) AIGLX error: dlopen of /usr/lib/dri/i965_dri.so failed (/usr/lib/dri/i965_dri.so: cannot open shared object file: No such file or directory)
/usr/lib/gdm-x-session[114514]: (EE) AIGLX error: unable to load driver i965

发现丢了i965_dri.so这么个驱动,看看是哪个包提供的

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yay -F i965_dri.so

发现它是由extra/mesa-amber提供的,尝试安装:yay -S mesa-amber.

注意到安装过程中提示我安装了与之冲突的mesa,卸载之,而后安装成功.

重启后问题解决.

0x3. 推测

查阅资料发现i965的驱动本来是由mesa提供的,而因为一些原因该驱动被转到了它的amber分支,可能这次更新把原来带的驱动正好刷掉了,导致我重启找不到驱动.

#linux #sddm
解决sddm Failed to read display number from pipe
https://www.hakurei.org.cn/2024/01/01/solve-sddm-Failed-to-read-display-number-from-pipe/
作者
zjkimin
发布于
2024年1月1日
更新于
2024年1月1日
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