Categoria: sistema operativo

Pubblicato il

Regex in Dolphin

With KRename in Dolphin you can use this code

_(\d{9})

so that you can replace

name_2025-12-07_075701289.avif

with -> name_2025-12-07.avif

Pubblicato il

Dolphin annoying tooltips

If can happen that using Dolphin (in Linux), if you have few files (to preview) or if the image has portrait rather than landscape format, you cannot see the file and select it, because in this way the tooltip cover the file, as you can see here below:

A workaround could be in Dolphin settings → configure Dolphin → view → miscellaneous – > deselect show item information.

Pubblicato il

Quodlibet icon tray in KDE Neon

It could happen that in KDE Neon, the icon tray of Quodlibet, an excellent audio player, works quite wrong: same behavior with the right and the left mouse key.
I solved, with a no-flatpack release, installing indicator-application

sudo apt install indicator-application

and the reboot.

Pubblicato il

Timeout of grub boot

You have to edit grub in /etc/default (i.g. with nano: sudo nano /etc/default/grub)

not only modifying this line: GRUB_TIMEOUT=3

but also adding (after that) this one: GRUB_RECORDFAIL_TIMEOUT=$GRUB_TIMEOUT

Of course after these changes you have to do a 

sudo update-grub

as explained here.

Pubblicato il

mozilla keyring problem

I had this problem:

E: https://packages.mozilla.org/apt mozilla InRelease is not (yet) available (The following signatures couldn't be verified because the public key is not available: NO_PUBKEY C0BA5CE6DC6315A3)

After many attempts it seems solved removing (renaming) the file .org.kde.neon.packages.mozilla.org.sources in /etc/apt/sources.list.d/

Pubblicato il

strange behavior in Vivaldi

If you get a pop-up window to unlock Vivaldi profile, and you share your Vivaldi profile between different Linux installation (devices), you could try to copy the folder .local/share/kwalletd from the working installation of Vivaldi to the other ones.

Pubblicato il

to install an appimage

Make an appimage executable is absolutely easy. But less easy is to associate that application with its mime-type files. Especially if that type of file doesn’t exist already on your system.

A very easy way, then, is to go to the appimage folder and, in a terminal, do 

(sudo) ./appimage-name install

With this command all will be ready, correctly set, as if that application wouldn’t be an appimage, but a “regular” one.