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Black screen after GRUB

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Anonymous user -  
mamiemando Posted messages 33228 Registration date   Status Moderator Last intervention   -
Hello,

Right after selecting "Ubuntu" in GRUB, my screen goes completely black (no blinking cursor).
If I go to "advanced options for Ubuntu," then select "ubuntu, with Linux ......", something displays but it hangs after these lines: 
Loading Linux 5.8.0-40-generic...
Loading initial ramdisk...
_


I have already tried removing "quiet", "splash", or adding "nomodeset", but nothing changes.

My case is a bit special:
My Linux is on a portable SSD, I usually boot directly from it, and everything works fine.
This time it's the same portable SSD but launched from a virtual machine. The VM can access the SSD partitions since GRUB starts, but Ubuntu does not start.
https://forums.commentcamarche.net/forum/affich-37062581-vm-a-partir-d-un-disque-physique#10

I am using Ubuntu 20.04.1 LTS 64 bits.

4 answers

  1.
    mamiemando Posted messages 33228 Registration date   Status Moderator Last intervention   7 940
     
    Bonjour,

    Can you switch to text mode (ctrl alt f1, ctrl alt f2)?

    If so, can you provide the results of: 

    lspci | grep VGA
    lspci | grep 3D
    dpkg -l | grep xorg | grep video
    grep EE /var/log/Xorg.0.log


    Good luck
    0
    1. Anonymous user
       
      Thank you for your response.
      Unfortunately, nothing happens with ctrl alt f1 and ctrl alt f2.
      The screen remains completely black, I have no mouse, no message, or blinking cursor, nothing...
      0