I have since switched the monitor to a 22" Samsung LCD. At the outset, the video repeated as above, but since then, when it occurs, the video has remained on, but the interface is unresponsive again as described above. I also unexpectedly caused it to occur with the VirtualBox manager window open but minimized and a VBox running, also minimized. After repeatedly clicking the VBox Manager tab on the bottom Xfce panel, the host became unresponsive again after several clicks. When this occurs, the bottom Xfce panel becomes grayed out. The only way to get the system back is to manually power it off, as is, then power it back on.
This occurs whether the monitor is connected to the PC via a VGA cable, or via a DVI-to-HDMI cable (DVI output on PC, HDMI input on monitor).
I looked at the Xorg.0.log.old files upom subsequent powerups and the only 'error' reported, pertained to the USB keyboard, which apparently, is a known issue with other Linux distributions, Was said It ought to be listed as a warning, not an error.
In the Xfrce settings, compositing was turned on but no transparency/opacity occurred with the windows as this setting was on Opaque. I turned that setting off, but it also did not resolve this issue.
The host monitor resolution setting is on 1680x1050, as it provides a larger screen for a VBox when it's running.
I am wondering if perhaps a recent update to X11, Xfce, or something else since late last week might be causing this problem? I added a Window Button to the top Xfce panel with the intent of removing the bottom Xfce panel, but have not yet removed it as I do not know if this is a X11/Xfce/other issue.
Thanks in advance.
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~]$ inxi -F
System:
Host: upstairs Kernel: 5.15.58-desktop-2.mga8 x86_64 bits: 64
Desktop: Xfce 4.16.0 Distro: Mageia 8 mga8
Machine:
Type: Desktop System: Hewlett-Packard product: CQ5826 v: N/A
serial: <superuser required>
Mobo: FOXCONN model: 2AB7 v: 1.00 serial: <superuser required>
BIOS: American Megatrends v: 6.09 date: 05/04/2011
CPU:
Info: Dual Core model: AMD Athlon II X2 260 bits: 64 type: MCP
L2 cache: 2 MiB
Speed: 800 MHz min/max: 800/3200 MHz Core speeds (MHz): 1: 800 2: 800
Graphics:
Device-1: AMD RS780L [Radeon 3000] driver: radeon v: kernel
Display: x11 server: Mageia X.org 1.20.14 driver: ati,radeon,v4l
resolution: 1680x1050~60Hz
OpenGL:
renderer: AMD RS780 (DRM 2.50.0 / 5.15.58-desktop-2.mga8 LLVM 11.0.1)
v: 3.3 Mesa 21.3.8
Audio:
Device-1: AMD SBx00 Azalia driver: snd_hda_intel
Sound Server: ALSA v: k5.15.58-desktop-2.mga8
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: <removed>
Drives:
Local Storage: total: 465.76 GiB used: 106.88 GiB (22.9%)
ID-1: /dev/sda vendor: Western Digital model: WD5000AAKX-603CA0
size: 465.76 GiB
Partition:
ID-1: / size: 49.2 GiB used: 7.48 GiB (15.2%) fs: ext4 dev: /dev/sda1
ID-2: /home size: 403.94 GiB used: 99.4 GiB (24.6%) fs: ext4
dev: /dev/sda6
Swap:
ID-1: swap-1 type: partition size: 4 GiB used: 0 KiB (0.0%) dev: /dev/sda5
Sensors:
System Temperatures: cpu: 29.6 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 185 Uptime: 41m Memory: 7.53 GiB used: 1.13 GiB (15.0%)
Shell: Bash inxi: 3.2.01