Package: xscreensaver
Version: 5.45+dfsg1-1
Severity: important
X-Debbugs-Cc: da...@cornell.edu
Dear Maintainer,
As of a few months ago (after a dist-upgrade + reboot), sometimes when I come
back to my desktop computer after leaving it alone for several hours, the
screen is unlocked with xscreensaver no longer running (i.e. locking the screen
no longer works until I run xscreensaver or xscreensaver-demo to restart it). I
haven't noticed any pattern of when it happens other than the screensaver
having been running for several hours, presumably undisturbed. Needless to say,
the screen being unlocked without a password is a security issue, although
admittedly a minor one for my setup.
If I leave xscreensaver running in a console inside screen, I can see output
like the following after a crash (no messages about it appear in dmesg):
$ xscreensaver
xscreensaver-systemd: 09:55:11: failed to connect as
org.freedesktop.ScreenSaver: File exists
xscreensaver: signal: 0: child pid 3281394 (xscreensaver-systemd) exited
abnormally (code 1).
xscreensaver: 09:55:22: ClientMessage ignored while authentication dialog is
active
xscreensaver: 09:55:30: no keyboard or mouse data in /proc/interrupts?
xscreensaver: 12:05:53: ClientMessage ignored while authentication dialog is
active
xscreensaver: 15:36:23: ClientMessage ignored while authentication dialog is
active
xscreensaver: 19:11:55: ClientMessage ignored while authentication dialog is
active
XIO: fatal IO error 0 (Success) on X server ":0.0"
after 1702519 requests (1702495 known processed) with 0 events remaining.
$ X Error of failed request: BadDrawable (invalid Pixmap or Window parameter)
Major opcode of failed request: 130 (MIT-SHM)
Minor opcode of failed request: 3 (X_ShmPutImage)
Resource id in failed request: 0xe41bff8
Serial number of failed request: 23
Current serial number in output stream: 24
X Error of failed request: BadDrawable (invalid Pixmap or Window parameter)
Major opcode of failed request: 130 (MIT-SHM)
Minor opcode of failed request: 3 (X_ShmPutImage)
Resource id in failed request: 0xe41bffc
Serial number of failed request: 23
Current serial number in output stream: 24
X Error of failed request: BadDrawable (invalid Pixmap or Window parameter)
Major opcode of failed request: 130 (MIT-SHM)
Minor opcode of failed request: 3 (X_ShmPutImage)
Resource id in failed request: 0xe41bffa
Serial number of failed request: 23
Current serial number in output stream: 24
Apologies: the issue is sporadic, so I did not notice it immediately and
therefore did not take note of exactly what the version numbers were
before/after the issue started.
Not sure it's related, but I'm using https://github.com/alexanderk23/gluqlo as
my screensaver program and am using xscreensaver-command -watch to run some
scripts on lock/unlock, based on the Perl script in the man page for
xscreensaver-command in the -watch section.
Let me know if there's any way I can collect more debugging information that
may be useful.
(Not sure what might be related; here's the versions of a few other packages
that aren't listed explicitly as dependencies. I think all of them have been
updated at least once since the problem started.)
ii linux-image-amd64 5.10.28-1
amd64 Linux for 64-bit PCs (meta-package)
ii nvidia-kernel-dkms 460.73.01-1
amd64 NVIDIA binary kernel module DKMS source
ii xorg 1:7.7+22
amd64 X.Org X Window System
-- System Information:
Debian Release: 11.0
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.10.0-6-amd64 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not
set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages xscreensaver depends on:
ii init-system-helpers 1.60
ii libatk1.0-0 2.36.0-2
ii libc6 2.30-4
ii libcrypt1 1:4.4.18-4
ii libglib2.0-0 2.66.8-1
ii libgtk2.0-0 2.24.33-1
ii libpam0g 1.4.0-7
ii libpango-1.0-0 1.46.2-3
ii libsystemd0 247.3-5
ii libx11-6 2:1.7.0-2
ii libxext6 2:1.3.3-1.1
ii libxi6 2:1.7.10-1
ii libxinerama1 2:1.1.4-2
ii libxml2 2.9.10+dfsg-6.3+b1
ii libxmu6 2:1.1.2-2+b3
ii libxrandr2 2:1.5.1-1
ii libxt6 1:1.2.0-1
ii libxxf86vm1 1:1.1.4-1+b2
ii xscreensaver-data 5.45+dfsg1-1
Versions of packages xscreensaver recommends:
ii libjpeg-turbo-progs 1:2.0.6-4
ii perl 5.32.1-3
ii wamerican [wordlist] 2019.10.06-1
ii xfonts-100dpi 1:1.0.4+nmu1.1
Versions of packages xscreensaver suggests:
ii chromium [www-browser] 90.0.4430.85-1
ii elinks [www-browser] 0.13.2-1+b1
ii firefox [www-browser] 88.0-1
ii firefox-esr [www-browser] 52.9.0esr-1
ii fortune-mod [fortune] 1:1.99.1-7.1
ii gdm3 3.38.2.1-1
ii google-chrome-stable [www-browser] 90.0.4430.93-1
ii lynx [www-browser] 2.9.0dev.6-2
ii opera-stable [www-browser] 60.0.3255.170
pn qcam | streamer <none>
ii xdaliclock 2.44+debian-2
pn xfishtank <none>
pn xscreensaver-data-extra <none>
ii xscreensaver-gl 5.45+dfsg1-1
pn xscreensaver-gl-extra <none>
