All Questions(ubuntu)

This could be achieved with X easily, but although looking extensively on AskUbuntu and other sites, I did not find a solution for Wayland :-(

The closest I came to was the command kscreen-doctor --dpms off. Unfortunately this turns off all monitors at once. But I'm looking for a more granular command that can turn on/off a single monitor alone.

Some posts suggest that this depends on the compositor. So I checked which compositor Kubuntu 24.10 uses with inxi -Gxx | grep compositor and the output is:

compositor: kwin_wayland driver: X: loaded: modesetting unloaded: fbdev,vesa

But what command or command-line-tool can I use to achieve the given task?

I've been following Alan Pope's Blog Getting started with Flutter.

I think that there is an error in the instructions as "flutter config --android-studio-dir /snap/android-studio/current/android-studio" resulted with the flutter doctor: john@Desktop:~$ flutter doctor --android-licenses Could not find the Android Studio installation at the manually configured path "/snap/android-studio/current/android-studio".

So I tried "flutter config --android-studio-dir /snap/android-studio/current" and that gave: john@Desktop:~$ flutter doctor --android-licenses Android sdkmanager not found. Update to the latest Android SDK and ensure that the cmdline-tools are installed to resolve this.

So I did "sudo apt install android-sdk" to resolve that but still getting same error. What do I do now?

PS I've looked in the Android Studio menu for an SDK Manager entry but don't see one.

Here is "flutter doctor - v" output: john@Desktop:~$ flutter doctor -v [✓] Flutter (Channel stable, 3.24.3, on Ubuntu 24.04.1 LTS 6.8.0-40-generic, locale en_GB.UTF-8) • Flutter version 3.24.3 on channel stable at /home/john/snap/flutter/common/flutter • Upstream repository https://github.com/flutter/flutter.git • Framework revision 2663184aa7 (5 weeks ago), 2024-09-11 16:27:48 -0500 • Engine revision 36335019a8 • Dart version 3.5.3 • DevTools version 2.37.3

[!] Android toolchain - develop for Android devices (Android SDK version 35.0.0) • Android SDK at /home/john/Android/Sdk ✗ cmdline-tools component is missing Run path/to/sdkmanager --install "cmdline-tools;latest" See https://developer.android.com/studio/command-line for more details. ✗ Android license status unknown. Run flutter doctor --android-licenses to accept the SDK licenses. See https://flutter.dev/to/linux-android-setup for more details.

[✓] Chrome - develop for the web • Chrome at google-chrome

[✓] Linux toolchain - develop for Linux desktop • clang version 10.0.0-4ubuntu1 • cmake version 3.16.3 • ninja version 1.10.0 • pkg-config version 0.29.1

[✓] Android Studio (version 2024.1) • Android Studio at /snap/android-studio/161 • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart • Java version OpenJDK Runtime Environment (build 17.0.10+0-17.0.10b1087.21-11609105)

[!] Android Studio (version unknown) • Android Studio at /snap/android-studio/current • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart ✗ Unable to determine Android Studio version. • android-studio-dir = /snap/android-studio/current • Java version OpenJDK Runtime Environment (build 17.0.10+0-17.0.10b1087.21-11609105)

[✓] Connected device (2 available) • Linux (desktop) • linux • linux-x64 • Ubuntu 24.04.1 LTS 6.8.0-40-generic • Chrome (web) • chrome • web-javascript • Google Chrome 130.0.6723.58

[✓] Network resources • All expected network resources are available.

! Doctor found issues in 2 categories.

i did some edit on Ubuntu 24.10 following this question and this question

I edited grub with sudo nano /etc/default/grub following by the command sudo update-grub

The edit was:

GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || ec>
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

After I rebooted the system the boot menu or grub menu didn't appear and it went straight to Ubuntu 24.10. Now I cannot log in to my other operating system. I don't know what I did wrong. What can I do so that the grub boot menu appears again from which I can choose the operating system that I want to use?

What is the best or most recommended way to configure Ubuntu 24.04 such that Kodi will always be automatically run upon boot-up, and such that no password will be required on boot to boot Ubuntu?

I know all about LibreELEC. Due to a certain quite troublesome bug (i.e. constantly losing the WiFi password on each reboot) in LibreELEC, that (LibreELEC) is not an option for me. There are other reasons why I prefer to use full Linux also, specifically built-in kernel NFS support.

I did a chown -R to a different user and group on /run. Is there someplace that the default owner:group for /run exists so I can put them back? Even if I have to do the repair one item at a time.