Package: xfce4 Version: 4.12.5 Severity: important File: xfce Dear Maintainer,
While working in Terminal Emulator, I moved the mouse pointer out of the window. A spurious window resize event occurred, leaving a size indicator "80x32" on the screen. I minimized the window and the indicator remained on the desktop. I restored the Terminal window and the indicator remained. I switched to another Workspace, which seemed correct, switched back, and the indicator was still there. I tried typing in the Terminal windows and the keyboard did not work. I was able to select other Terminal windows. The keyboard still did not work. I closed the various open windows by clicking the Close decoration. I right-clicked on the minimized windows in Window Buttons, but their context menus did not open. I clicked on the minimized windows in Windows Button and they restored. I closed them via the Close decoration. I clicked the Application Menu and its menu did not open. I pressed Ctrl+Alt+Del and the screen went black. After 5~10 seconds, the graphical login screen appeared. I logged in, opened a terminal, and filed this bug report. This machine is a Dell Latitude E6520 with an Intel Core i7-2720QM processor, 16GB memory, 60 GB SSD, and Intel/NVIDIA Optimus graphics. When I installed Debian 10.8 on it 7+ months ago, YouTube videos crashed after ~20 minutes. I pulled the system disk and put it on the shelf. Every few weeks I would install the disk, update/ upgrade, and test again. I tried installing the NVIDIA proprietary driver. That was a disaster. I blame PEBKAC. After upgrading to 10.9, YouTube videos crashed after a few hours. After upgrading to 10.0, YouTube videos stopped crashing. I then started using the machine as a daily driver. Unfortunately, I have been experiencing desktop malfunctions ever since. Their frequency has increased recently (I just experienced a spurious desktop select (?) event when moving the mouse cursor out of a Terminal window). I can usually get out of them by operating various windows, decorations, buttons, menus, etc., but not always. I have tested Debian 10 OS disk in a desktop machine with an Intel DQ67SW motherbaord, Intel Core i7-2600S processor, and 8 GB memory. That machine has Intel integrated graphics and has been reliable since Debian 6 or 7 (~2013?). Therefore, I suspect the problem is related to the Optimus graphics and/or nouveau driver. David -- System Information: Debian Release: 10.10 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-17-amd64 (SMP w/8 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages xfce4 depends on: ii gtk2-engines-xfce 3.2.0-4 ii libxfce4ui-utils 4.12.1-3 ii thunar 1.8.4-1 ii xfce4-appfinder 4.12.0-2 ii xfce4-panel 4.12.2-1 ii xfce4-pulseaudio-plugin 0.4.1-1 ii xfce4-session 4.12.1-6 ii xfce4-settings 4.12.4-1 ii xfconf 4.12.1-1 ii xfdesktop4 4.12.4-2 ii xfwm4 4.12.5-1 Versions of packages xfce4 recommends: ii desktop-base 10.0.2 ii tango-icon-theme 0.8.90-7 ii thunar-volman 0.9.1-1 ii xfce4-notifyd 0.4.3-1 ii xorg 1:7.7+19 Versions of packages xfce4 suggests: pn gtk3-engines-xfce <none> ii xfce4-goodies 4.12.6 ii xfce4-power-manager 1.6.1-1 -- no debconf information