Display issue prevents opening GUI in Debian 10.

[Darío César Luzuriaga Sorribes]

Hi. I updated my OS to Linux Debian 10 from 9. And I'm having a big issue when trying to start any graphical interface. I get the message: "cannot open display". I worked out in the OS updates already. The computer isn't new, but it was running perfectly with Debian 8 and 9 in the past. Now it looks like there is an issue with my VGA display driver or similar. I have an AMD Kabini Radeon HD 8400 series display. The Kernel driver in use is Radeon and the Kernel modules used are Radeon and Amdpu, according to the command lspci -nnk | grep -i -EA3 “3d|display|vga”. There is no hardware issue, since I can run Windows 10 on that computer too. Does anybody know some useful documentation or even what to do in this case? Thanks. Dario.

[Marco Möller]

Post by Darío César Luzuriaga Sorribes
Hi. I updated my OS to Linux Debian 10 from 9. And I'm having a big
"cannot open display". I worked out in the OS updates already. The
computer isn't new, but it was running perfectly with Debian 8 and 9 in
the past. Now it looks like there is an issue with my VGA display driver
or similar. I have an AMD Kabini Radeon HD 8400 series display. The
Kernel driver in use is Radeon and the Kernel modules used are Radeon
and Amdpu, according to the command lspci -nnk | grep -i -EA3
“3d|display|vga”. There is no hardware issue, since I can run Windows 10
on that computer too. Does anybody know some useful documentation or
even what to do in this case? Thanks. Dario.

I am sorry to not be able to help you with your technical issue, but at
least I would like to help you by recommending you the proper email list
where you most likely will find help on it:

debian-***@lists.debian.org

Good Luck! Marco.