Bloom wrote:
This tells me you installed an "official" Debian without any non-free firmware and you probably need that for your screen.
Edit as root /etc/apt/sources.list and make sure they contain (for Buster:)
Code: Select all
deb http://ftp.de.debian.org/debian buster main contrib non-free
deb http://ftp.de.debian.org/debian buster-updates main contrib non-free
deb http://ftp.de.debian.org/debian-security buster/updates main contrib non-free
deb http://ftp.de.debian.org/debian buster-backports main contrib non-free
deb http://www.deb-multimedia.org buster main non-free
Then do apt update followed by apt upgrade and apt dist-upgrade followed by (if all was successful without any errors) apt autoremove.
Trying this out here is my error message after trying apt-get update
W: GPG error:
http://www.deb-multimedia.org buster InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5C808C2B65558117
E: The repository '
http://www.deb-multimedia.org buster InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
root@SecurityTool:/home/securitytool# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@SecurityTool:/home/securitytool# apt-get install dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package dist-upgrade
root@SecurityTool:/home/securitytool# apt dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@SecurityTool:/home/securitytool# apt autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@SecurityTool:/home/securitytool#