X11 crashing on login (Arch ARM)

[Melodi]

I am using Arch Linux on a Chromebook C201 (ARM). Since I recently upgraded the system, the desktop environment seems to be crashing shortly after I login (before the upgrade it was working fine). I have both LXDE and MATE installed and I am seeing similar crashes on both. The two DEs are using different Window Managers (Openbox and marco), so I suspect there may be an issue with X server.

When the system crashes, the screen freezes and the desktop completely locks up. There is no response to mouse or keyboard input and I am unable to use $this->bbcode_second_pass_code('', 'CTL-ALT-F2') etc. to switch to a console tty. After a few minutes it dumps me back in the lightdm login screen.

I have found the following errors (which seem to be relevant) in $this->bbcode_second_pass_code('', '~/.cache/lxsession/LXDE/run.log') Download Instagram Photos ~ TikTok Video Downloader

$this->bbcode_second_pass_code('', '** (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)')

I am using Arch Linux on a Chromebook C201 (ARM). Since I recently upgraded the system, the desktop environment seems to be crashing shortly after I login (before the upgrade it was working fine). I have both LXDE and MATE installed and I am seeing similar crashes on both. The two DEs are using different Window Managers (Openbox and marco), so I suspect there may be an issue with X server.

When the system crashes, the screen freezes and the desktop completely locks up. There is no response to mouse or keyboard input and I am unable to use CTL-ALT-F2 etc. to switch to a console tty. After a few minutes it dumps me back in the lightdm login screen.

I have found the following errors (which seem to be relevant) in ~/.cache/lxsession/LXDE/run.log:

$this->bbcode_second_pass_code('', '** (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)')
The equivalent errors for MATE $this->bbcode_second_pass_code('', '(from ~/.xsession-errors) ')are:

$this->bbcode_second_pass_code('', '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.')

Does anyone have any idea what might be causing this? I have run memtester (as suggested in the comments) and it didn't identify any issues with the RAM. The system seems perfectly stable in a console terminal.

It's possible the issue is just a bad package from Arch ARM, which has broken the system during the last update. Does anyone have any thoughts on what package is likely to be broken? (if so, I'll try rolling back)