Coming from Manjaro, I had Manjaro in dual boot with Windows for a few years now. I have now also installed Arch Linux. During the Arch installation, I skipped the part with the boot partition and the bootloader. I have been using the bootloader/grub from Manjaro. That works quite well.

But now I want to switch to a bootloader from Arch. With the Arch bootloader I would like to continue to have the choice between Arch, Manjaro and Windows.

I assume that I have to install a corresponding bootloader for Arch in the EFI parallel to the others. But how should I proceed in detail? I have not yet been able to find any corresponding howtos. Which bootloader would you recommend?

I try to download a file with curl directly after logging into Gnome. This usually fails because mostly the WiFi connection is only established after login. If I wait long enough in the login screen before logging in, the connection is already established and the download works.

So far I have used Manjaro. WiFi was already active long before the login screen of GDM was even displayed. The download therefore always worked.

The download is initiated with a *.desktop file in ~/.config/autostart.

Is there another way to start the download after the user is logged in and the WiFi connection is really ready?

Since I no longer had an icon for Steam in Gnome, I tried to reinstall Steam via pacman -S steam. That didn't bring me an icon in the Gnome overview either, but that was because I had created a separate *.desktop file in ~/.local/share/applications. I removed this and the icon in the overview came back. But now I have the problem that the games I call up via Steam no longer start. For one game, the launcher starts, but then displays the message “Please start Steam first” (Steam is already running, otherwise I wouldn't be able to start the game). Other games bring up the message that no wine-mono is supposedly installed. But it is installed.

A reinstallation of Steam has not changed anything. What can I do?

If I copy files with backup (cp --backup=numbered), the old file is renamed to something like oldfile.ext.~1~. I get my old files. Can this be limited to a certain number of old files, for example 30? I don't want to have keep more than that...

I have searched the settings in the app, but didn't found such a setting. I want to have bigger thumbnails for posts with images and link previews. Is that available or if not can this be implemented? I have added a screenshot from "Thunder" with exact such bigger thumbnails. Can this be done?

Creating *.desktop files for WIndows/Wine applications, specify sometimes a Icon like this:

[Desktop Entry]
Name=Game to start
Comment=Play this game on Steam
Exec=steam steam://rungameid/738520
Icon=steam_icon_738520
Terminal=false
Type=Application
Categories=Game;

with Icon=steam_icon_738520. Is this extracted from the *.exe file and how do i get the name mentioned here? I know, that i can use the path to a *.png, but i would prefer to use the *.exe file itself.

In einem Projekt schiebe ich Video von meinen Kameras in ein Verzeichnis auf den Rasperry Pi4. Ein Cronjob geht dieses Verzeichnis dann durch und konvertiert diese Videos mit ffmpeg. Seit letzter Woche schlägt dies fehl. Folgendes Kommando wird dabei benutzt: ffmpeg -y -i "/tmp/4B9A9487.MP4" -vf format=yuv420p -c:v h264_v4l2m2m -b:v 8M -c:a aac -movflags +faststart "/tmp/4B9A9487_cv.mp4". Für einige Video klapp dies, für andere erhalte ich die Fehlermeldung: [h264_v4l2m2m @ 0x558fae9600] Could not find a valid device.

Das es aber für einige funktioniert, für andere nicht, glaube ich nicht, das dies am fehlenden device liegt. Denn wenn ich die Auflösung des Videos reduziere, funktioniert es durchaus. So klappt folgender Befehl mit den bisher fehlgeschlagenen Videos problemlos: ffmpeg -y -i "/tmp/4B9A9487.MP4" -vf format=yuv420p -c:v h264_v4l2m2m -b:v 8M -s 1280x720 -c:a aac -movflags +faststart "/tmp/4B9A9487_cv.mp4".

Geändert hat sich nur die Angabe der Auflösung mit -s 1280x720. Das Input Video hat hier 3840x2160. Ich vermute daher das der Rasperry Pi hier irgendwo mit 3840x2160 nicht mehr klar kommt und daher abbricht.

Was ist denn die maximale Auflösung die der Rasperry Pi hier unterstützt?

I use Darktable 5.0.1. I don't know if this is a bug or just a user error on my part. But I can remember that it worked differently in 4.8.x.

When I am in the lighttable module, I can select “rejected only” in the filter. I would now expect to see all rejected images. However, the opposite is the case. I now see all images that have not been rejected. However, if I select “all except rejected”, I see the rejected images.

Why is the filter effect reversed?

On Samsung Phones. there is a function called "Auto Blocker". If this is enabled, this blocks installing apps from unknown sources and via USB and ADB. In principle, this is a useful feature, but it also prevents the installation of updates via F-Droid. Even if F-Droid is classified as trustworthy in general and can therefore theoretically install apps and updates automatically, activating this function prevents automatic updates. If this function is deactivated, new apps and updates are installed automatically on request.

Is there a way to activate this function and still receive automatic updates via F-Droid? Does the installation of the F-Droid.apk via ADB/USB change anything in this constellation?

As my time with linux, I created a lot of scripts. Some of them have input parameters and sometimes I just forget this parameters.

So I wonder if there is some way to create autocomplete parameters, like i autocomplete a path by pressing the tab key?

For example a script. ./test.sh can be completed with parameter-one, eg. ./test.sh parameter-one or ./test.sh parameter-two. If i type now ./test.sh followed by tab it should add parameter-one if i press tab again it should change to parameter-two.

How can I do that? I'm on bash…

When I send a notification with notify-send -i /path/to/my/icon.png "title" "message" , it appears wonderfully in Gnome 47.4. However, the icon is very tiny. According to the screenshots I saw, the icon can be very large. It is also obviously displayed in addition to the app icon. Is there a way to send such an icon in the message or another way to create desktop notifications?

I'm using Gnome as DE and was really happy with it until my last update. I would like to re-install Gnome, but want to remove before that all Gnome stuff, settings and dependencies. This is no problem for the packages installed via pacman and also it's dependencies. But I fear that I don't know how to remove all relevant settings. Is there some special folder or set of files to remove, before I can start from scratch?