我在 Chromebook C201 (ARM) 上使用 Arch Linux。由於我最近升級了系統，桌面環境似乎在我登入後不久就崩潰了（升級之前工作正常）。我安裝了 LXDE 和 MATE，並且在兩者上都看到類似的崩潰。兩個 DE 使用不同的視窗管理器（Openbox 和 marco），因此我懷疑 X 伺服器可能有問題。
當系統崩潰時，螢幕凍結並且桌面完全鎖定。對滑鼠或鍵盤輸入沒有響應，我無法使用CTL-ALT-F2等切換到控制台 tty。幾分鐘後，它又將我轉回 lightdm 登入畫面。
我發現以下錯誤（似乎相關）~/.cache/lxsession/LXDE/run.log：
** (lxpanel:524): WARNING **: 21:18:33.907: The directory '~/Templates' doesn't exist, ignoring it
** (pcmanfm:525): WARNING **: 21:18:33.907: The directory '~/Templates' doesn't exist, ignoring it
Openbox-Message: Unable to find a valid menu file "/usr/share/lxde/openbox/menu.xml"
(lxpanel:524): GLib-GObject-CRITICAL **: 21:18:34.467: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
(lxpanel:524): GLib-GObject-CRITICAL **: 21:18:34.467: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
(lxpanel:524): GLib-GObject-CRITICAL **: 21:18:34.476: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
** (lxpanel:524): WARNING **: 21:18:34.544: Battery entry BAT0 not found, using sbs-20-000b
(lxpanel:524): GLib-GObject-CRITICAL **: 21:18:34.547: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
(lxpanel:524): GLib-GObject-CRITICAL **: 21:18:34.547: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
** (lxpanel:524): WARNING **: 21:18:34.736: launchbar: desktop entry does not exist
(nm-applet:541): libnotify-WARNING **: 21:18:38.692: Failed to connect to proxy
(nm-applet:541): nm-applet-WARNING **: 21:18:38.698: Failed to show notification: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files
lxterminal
(lxpanel:524): Wnck-WARNING **: 21:18:40.000: Unhandled action type _OB_WM_ACTION_UNDECORATE
(lxpanel:524): Wnck-WARNING **: 21:19:12.727: Unhandled action type _OB_WM_ACTION_UNDECORATE
(lxpanel:524): Wnck-WARNING **: 21:19:12.861: Unhandled action type _OB_WM_ACTION_UNDECORATE
/usr/lib/firefox/firefox
(lxpanel:524): Wnck-WARNING **: 21:19:36.058: Unhandled action type _OB_WM_ACTION_UNDECORATE
(END)
MATE 的等效錯誤（來自~/.xsession-errors）是：
mate-session[1216]: WARNING: Unable to find provider '' of required component 'dock'
Window manager warning: Log level 128: unsetenv() is not thread-safe and should not be used after threads are created
(caja:1299): Gtk-WARNING **: 21:22:12.818: Failed to register client: GDBus.Error:org.gnome.SessionManager.AlreadyRegistered: Unable to register client
(mate-power-manager:1337): Gdk-CRITICAL **: 21:22:14.720: gdk_window_thaw_toplevel_updates: assertion 'window->update_and_descendants_freeze_count > 0' failed
Gdk-Message: 21:25:19.408: mate-power-manager: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.408: evolution-alarm-notify: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.409: mate-session: Fatal IO error 104 (Connection reset by peer) on X server :0.
Gdk-Message: 21:25:19.409: marco: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.415: caja: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.413: polkit-mate-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.409: mate-maximus: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.408: mate-volume-control-status-icon: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.408: nm-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.409: mate-screensaver: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.415: mate-settings-daemon: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Gdk-Message: 21:25:19.423: mate-panel: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Xorg.0.log的內容：
[ 10.124]
X.Org X Server 1.20.7
X Protocol Version 11, Revision 0
[ 10.124] Build Operating System: Linux Arch Linux
[ 10.124] Current Operating System: Linux leeLibrebook 5.5.6-1-ARCH #1 SMP PREEMPT Wed Feb 26 00:56:53 UTC 2020 armv7l
[ 10.124] Kernel command line: cros_secure console=tty0 init=/sbin/init root=PARTUUID=1b19e700-f9cb-f247-bc7f-207dece4cdb7/PARTNROFF=1 rootwait rw noinitrd
[ 10.124] Build Date: 16 January 2020 05:49:11PM
[ 10.124]
[ 10.124] Current version of pixman: 0.38.4
[ 10.124] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 10.124] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 10.124] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Mar 17 21:57:41 2020
[ 10.125] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 10.125] (==) No Layout section. Using the first Screen section.
[ 10.125] (==) No screen section available. Using defaults.
[ 10.125] (**) |-->Screen "Default Screen Section" (0)
[ 10.125] (**) | |-->Monitor "<default monitor>"
[ 10.125] (==) No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
[ 10.125] (==) Automatically adding devices
[ 10.125] (==) Automatically enabling devices
[ 10.125] (==) Automatically adding GPU devices
[ 10.125] (==) Automatically binding GPU devices
[ 10.125] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 10.126] (WW) The directory "/usr/share/fonts/misc" does not exist.
[ 10.126] Entry deleted from font path.
[ 10.126] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[ 10.126] Entry deleted from font path.
[ 10.126] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[ 10.126] Entry deleted from font path.
[ 10.126] (WW) The directory "/usr/share/fonts/100dpi" does not exist.
[ 10.126] Entry deleted from font path.
[ 10.126] (WW) The directory "/usr/share/fonts/75dpi" does not exist.
[ 10.126] Entry deleted from font path.
[ 10.126] (==) FontPath set to:
/usr/share/fonts/TTF
[ 10.126] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 10.126] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 10.126] (II) Module ABI versions:
[ 10.126] X.Org ANSI C Emulation: 0.4
[ 10.126] X.Org Video Driver: 24.1
[ 10.126] X.Org XInput driver : 24.1
[ 10.126] X.Org Server Extension : 10.0
[ 10.127] (++) using VT number 7
[ 10.127] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[ 10.129] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 10.143] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 10.144] (II) no primary bus or device found
[ 10.144] falling back to /sys/devices/platform/display-subsystem/drm/card0
[ 10.144] (II) LoadModule: "glx"
[ 10.144] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 10.148] (II) Module glx: vendor="X.Org Foundation"
[ 10.148] compiled for 1.20.7, module version = 1.0.0
[ 10.148] ABI class: X.Org Server Extension, version 10.0
[ 10.148] (==) Matched modesetting as autoconfigured driver 0
[ 10.148] (==) Matched fbdev as autoconfigured driver 1
[ 10.148] (==) Assigned the driver to the xf86ConfigLayout
[ 10.148] (II) LoadModule: "modesetting"
[ 10.148] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 10.149] (II) Module modesetting: vendor="X.Org Foundation"
[ 10.149] compiled for 1.20.7, module version = 1.20.7
[ 10.149] Module class: X.Org Video Driver
[ 10.149] ABI class: X.Org Video Driver, version 24.1
[ 10.149] (II) LoadModule: "fbdev"
[ 10.150] (WW) Warning, couldn't open module fbdev
[ 10.150] (EE) Failed to load module "fbdev" (module does not exist, 0)
[ 10.150] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 10.160] (II) modeset(0): using drv /dev/dri/card0
[ 10.160] (II) modeset(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 10.160] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
[ 10.160] (==) modeset(0): RGB weight 888
[ 10.160] (==) modeset(0): Default visual is TrueColor
[ 10.160] (II) Loading sub module "glamoregl"
[ 10.160] (II) LoadModule: "glamoregl"
[ 10.161] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
[ 10.173] (II) Module glamoregl: vendor="X.Org Foundation"
[ 10.173] compiled for 1.20.7, module version = 1.0.1
[ 10.173] ABI class: X.Org ANSI C Emulation, version 0.4
[ 10.193] (EE)
[ 10.193] (EE) Backtrace:
[ 10.193] (EE)
[ 10.193] (EE) Segmentation fault at address 0xdda8
[ 10.193] (EE)
Fatal server error:
[ 10.193] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 10.193] (EE)
[ 10.193] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 10.193] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 10.193] (EE)
[ 10.200] (EE) Server terminated with error (1). Closing log file.
有誰知道可能是什麼原因造成的？我已經運行了memtester（按照評論中的建議），它沒有發現內存有任何問題。該系統在控制台終端中看起來非常穩定。
該問題可能只是來自 Arch ARM 的錯誤軟體包，該軟體包在上次更新期間破壞了系統。有人對什麼包裹可能被損壞有任何想法嗎？ （如果是這樣，我會嘗試回滾）