Erro ao tentar instalar o software Intel (para atualizar gráficos)

Question

Estou tentando atualizar minha placa gráfica há algum tempo e descobri no site da Intel um pacote .deb que ajuda você a manter seus gráficos atualizados. No entanto, ao executá-lo, continuo recebendo o mesmo erro que vejo no terminal:

W: The repository 'http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu xenial
Release' does not have a Release file. N: Data from such a repository
can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user
configuration details. 
W: GPG error:
https://download.01.org/gfx/ubuntu/16.04/main xenial InRelease: The
following signatures couldn't be verified because the public key is
not available: NO_PUBKEY 56A3DEF863961D39 
W: The repository
'https://download.01.org/gfx/ubuntu/16.04/main xenial InRelease' is
not signed. N: Data from such a repository can't be authenticated and
is therefore potentially dangerous to use. N: See apt-secure(8)
manpage for repository creation and user configuration details. W:
http://www.openprinting.org/download/printdriver/debian/dists/lsb3.2/Release.gpg:
Signature by key F8897B6F00075648E248B7EC24CBF5474CFD1E2F uses weak
digest algorithm (SHA1) 
E: Failed to fetch
http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu/dists/xenial/main/binary-amd64/Packages
404  Not Found E: Some index files failed to download. They have been
ignored, or old ones used instead.

Existe alguma maneira de corrigir isso? Preciso excluir esses arquivos ou tentar baixá-los novamente?

    

Answer 1

Problema # 1: Você tem um repositório incorreto definido. Mudar

deb http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu xenial main

to

deb http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu trusty main

or better yet, use their direct location at:

deb https://download.01.org/gfx/ubuntu/16.04/main xenial main

Problema # 2: Você não tem uma chave GPG instalada. No terminal, insira

wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-4 -O - | \
sudo apt-key add - (including the ending hyphen)

Para mais informações , acesse o site deles em link .

Felicidades, Al