I've Googled. I typed this description then clicked "check if already posted" with all the boxes unchecked. Still not getting it to work.
Did a PROPER shutdown. Everything was working before shutdown. Physically moved desktop to other side of same room. Did NOT drop machine or pass any EM field. Cannot think of any reason for corruption.
After reboot, using same cables, same external hardware, same everything, desktop would not send signal to LG TV as it did before. Did not display POST, BIOS, only the NO SIGNAL bouncy-box. Had to connect to 19" HNC TV/Monitor using same HDMI cable to see anything, and even then I had to hit the computer's reset button to get any signal to that monitor.
With HNC connected, Applications>System Tools>Preferences>Settings for Devices>Displays shows Unknown Display, resolution stuck at 1024x768 4:3 even though it used to identify the HNC and supported 720p on the HNC. Also used to identify the LG and supported 1080p.
Playing a video file with VLC gives no sound through HDMI but VLC>Audio>Audio Device shows Cedar HDMI Audio ... as the selected option. Selecting the built-in audio option doesn't produce any sound either, not that I have anything connected to the mini-jacks anyway.
Only available option in Applications>System Tools>Preferences>Settings for audio is the onboard audio. The HDMI through my expansion video card is no longer an option.
Did a restart to use GRUB recovery mode. GRUB menu no longer shows by default. I have Win7 and Ubuntu 18.04 on separate drives and could select which OS I wanted to use from GRUB.
Did the SHIFT trick to access GRUB... Win7 no longer appears as an option. Selected latest Ubuntu kernel RECOVERY MODE, selected fsck, got the following echo:
/lib/recovery-mode/recovery-menu: line 80: /etc/default/reS: No such file or directory
flck from util-linux 2.31.1
/dev/sda5 is mounted
e2fsck: Cannot continue, aborting.
Proceeded to boot normal.
Used Terminal, sudo gedit /etc/default/grub and YES I also did sudo update-grub.
current config is as follows, STILL won't show me Win7 or even show up at all unless I hold the Shift key:
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="splash"
GRUB_CMDLINE_LINUX=""
Applications>System Tools>Preferences>Settings Details-About says
18.04.2 LTS (I'll add that the kernel images in GRUB are 4.15.0-51 and 4.15.0-50)
AMD PhenomII x4 955 processor (I'll add that the mobo is Asus M4A89TD)
Graphics: llvmpipe (LLVM 6.0, 128 bits) but I have ATI Radeon HD 5450 graphics card installed
GNOME 3.28.2 (btw, I have the system set to bypass the gdm3 login and directly open the desktop)
Software is up to date
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 400, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
1024x768 0.00*
800x600 0.00
640x480 0.00
720x400 0.00
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: SB [HDA ATI SB], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
Downloaded proprietary Radeon drivers then attempted to apt-get install through Terminal (even though they were for 14.04). This created dependency errors that cannot be resolved, so had to remove and autoremove. AMDGPU doesn't support this ancient card but I never had any need for it so that's likely not the answer either.
Can anyone help out a dinosaur?
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