I just installed debian 10, and it gives a black screen. There are 3 graphic manager installed above, when I launch with sddm it opens a black screen and directly requests the user’s loigin and pqssword, when it’s in gdm3 or in lightdm it gives a black screen with a cursor which blinks and you cannot do anything with, when I do alt + f1 it returns to a screen where you see the history of actions and where you can enter the login and the password.
I have tried
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apt-get update
,
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apt-get upgrade
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apt-get install grub
, I went to
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/etc/apt/soiurce.lists
I added
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contrib non-free
after the source lines, then installed
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firmware-linux
I did updates and upgrades, I went to grub I replaced
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quiet
by
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nomodeset
then I reset
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quiet
by doing
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update-grub
after each change and
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reboot
in when it had a chance to be useful.
No result
The video card is a radeon vega graphics
Thank you for your help.