intel cpu temp sensor and general sensors

 

https://askubuntu.com/questions/15832/how-do-i-get-the-cpu-temperature

sudo apt-get install lm-sensors 

After installation type the following in terminal

sudo sensors-detect

You may also need to run

sudo service kmod start

It will ask you few questions. Answer Yes for all of them. Finally to get your CPU temperature type sensors in your terminal.

sensors

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VNC server install for ubuntu 22 jammy

https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-22-04

 

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Remote desktop from command line windows 10

  

mstsc /v:computer name

mstsc /w:1920 /h:1080

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Raspberry Pi display 7" install

The display orientation needs to be rotated for the display port attached display on the pi os.

This is done thru a preference setting with the pi os.

https://www.raspberrypi.com/documentation/accessories/display.html

Rotate screen without a desktop

To set the screen orientation on a device that lacks a desktop environment, edit the /boot/firmware/cmdline.txt configuration file to pass an orientation to the system. Add the following line to cmdline.txt:

video=DSI-1:800x480@60,rotate=<rotation-value>

Replace the <rotation-value> placeholder with one of the following values, which correspond to the degree of rotation relative to the default on your display:

• 0

• 90

• 180

• 270

For example, a rotation value of 90 rotates the display 90 degrees to the right. 180 rotates the display 180 degrees, or upside-down.

Note	It is not possible to rotate the DSI display separately from the HDMI display with cmdline.txt. When you use DSI and HDMI simultaneously, they share the same rotation value.

Rotate touch input

Warning

Rotating touch input via device tree can cause conflicts with your input library. Whenever possible, configure touch event rotation in your input library or desktop.

Rotation of touch input is independent of the orientation of the display itself. To change this you need to manually add a dtoverlay instruction in /boot/firmware/config.txt. Add the following line at the end of config.txt:

dtoverlay=vc4-kms-dsi-7inch,invx,invy

Then, disable automatic display detection by removing the following line from config.txt, if it exists:

display_auto_detect=1

Touch Display device tree option reference

The vc4-kms-dsi-7inch overlay supports the following options:

DT parameter	Action
sizex	Sets X resolution (default 800)
sizey	Sets Y resolution (default 480)
invx	Invert X coordinates
invy	Invert Y coordinates
swapxy	Swap X and Y coordinates
disable_touch	Disables the touch overlay totally

To specify these options, add them, separated by commas, to your dtoverlay line in /boot/firmware/config.txt. Boolean values default to true when present, but you can set them to false using the suffix "=0". Integer values require a value, e.g. sizey=240. For instance, to set the X resolution to 400 pixels and invert both X and Y coordinates, use the following line:

dtoverlay=vc4-kms-dsi-7inch,sizex=400,invx,invy

Installation on Compute Module based devices.

All Raspberry Pi SBCs auto-detect the official Touch Displays as the circuitry connected to the DSI connector on the Raspberry Pi board is fixed; this autodetection ensures the correct Device Tree entries are passed to the kernel. However, Compute Modules are intended for industrial applications where the integrator can use any and all GPIOs and interfaces for whatever purposes they require. Autodetection is therefore not feasible, and hence is disabled on Compute Module devices. This means that the Device Tree fragments required to set up the display need to be loaded via some other mechanism, which can be either with a dtoverlay entry in config.txt as described above, via a custom base DT file, or if present, a HAT EEPROM.

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vnc server install ubuntu

tight vnc server install

apt -y install  tightvncserver

 

service file for tightvnc 

https://gist.github.com/spinxz/1692ff042a7cfd17583b

 

tutorial ubuntu 20 tightvnc

https://www.youtube.com/watch?v=oHm7B3hRSP0 

vnc on ubuntu 24

https://www.reddit.com/r/Ubuntu/comments/1i45x1u/how_to_set_up_vnc_server_on_ubuntu_2404_with/

 

various vnc on ubuntu 22

https://help.ubuntu.com/community/VNC/Servers

 

 

telnetd installation on linux

install with

sudo apt -y install telnetd

if not started automatically on install check

/etc/inetd.conf 

for telnet enabled being commented out.

remove commenting which disables inetd handling the service and run

sudo systemctl restart inetutils-inetd.service

on raspberry pi os debian and later

sudo systemctl restart inetd 

example discussed for raspberrypi os

https://forums.raspberrypi.com/viewtopic.php?t=369500

Yahoo / Thunderbird login changes / notes

Note / announcement about yahoo / thunderbird login

Apparently related to having more than one account logged into from a Thunderbird instance using this authentication method.  Need to set up multiple "cookies" for use on appropriate platform.

Using IMAP to access

https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo

You may have been asked in Thunderbird to log in your Yahoo, ATT or AOL accounts, or seen a notice with the title Upcoming Account Change. This is the result of Thunderbird, as of version 148.0 on February 22, 2026, switching to a more secure authorization protocol known as OAuth2 with PKCE. Below are instructions to assist you in the log in process.

In addition to enhanced security, this update also allows you to access Yahoo, AOL, and ATT calendars and address books in Thunderbird, which is a major new benefit to users. If you need more information, see OAuth2 Authorization below.

You have only one account

If you have only one account, then no change is needed in Thunderbird for PKCE to work. You just log in ("authenticate") by providing your email account and account password (App passwords do not work with OAuth2), and then confirm that Thunderbird may access data on the provider's servers (AOL, ATT, Yahoo, etc). This is a normal and safe process. If you have difficulty, please see Detailed Troubleshooting Steps below.

You have more than one account

If you have more than one account, such as one AOL account and one Yahoo account, to allow PKCE to work you must:

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