[Bug 1871658] [NEW] VBoxClient does not work after upgrade to 20.04 LTS Beta

[fas-ubuntu]

Public bug reported:

I run Ubuntu Studio 18.04 in VirtualBox VM.
I did a upgrade to 19.10 and then to 20.04 (development)
VirtualBox guest additions were installed via apt.

1) lsb_release -rd
Description:	Ubuntu Focal Fossa (development branch)
Release:	20.04

2)
virtualbox-guest-x11:
  Installed: 6.1.4-dfsg-2
  Candidate: 6.1.4-dfsg-2
  Version table:
 *** 6.1.4-dfsg-2 500
        500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
        100 /var/lib/dpkg/status

virtualbox-guest-dkms:
  Installed: 6.1.4-dfsg-2
  Candidate: 6.1.4-dfsg-2
  Version table:
 *** 6.1.4-dfsg-2 500
        500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
        500 http://de.archive.ubuntu.com/ubuntu focal/multiverse i386 Packages
        100 /var/lib/dpkg/status

3) What I expect:
Copy-and-paste to work as before on 18.04.

4) What happened instead:
It does not work. Even after purging and reinstalling it with apt.

Related error messages on first reboot:
"VBoxCliebt crashed with SIGSEGV in XQueryExtension()"

and in /var/log:
ERROR: apport (pid 1626) Wed Apr  8 16:33:04 2020: executable: /usr/bin/VBoxClient (command line "/usr/bin/VBoxClient --vmsvga-x11")

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

- 
- I run Ubuntu 18.04 in VirtualBox VM.
+ I run Ubuntu Studio 18.04 in VirtualBox VM.
  I did a upgrade to 19.10 and then to 20.04 (development)
  VirtualBox guest additions were installed via apt.
  
  1) lsb_release -rd
  Description:	Ubuntu Focal Fossa (development branch)
  Release:	20.04
  
  2)
  virtualbox-guest-x11:
-   Installed: 6.1.4-dfsg-2
-   Candidate: 6.1.4-dfsg-2
-   Version table:
-  *** 6.1.4-dfsg-2 500
-         500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
-         100 /var/lib/dpkg/status
- 
+   Installed: 6.1.4-dfsg-2
+   Candidate: 6.1.4-dfsg-2
+   Version table:
+  *** 6.1.4-dfsg-2 500
+         500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
+         100 /var/lib/dpkg/status
  
  virtualbox-guest-dkms:
-   Installed: 6.1.4-dfsg-2
-   Candidate: 6.1.4-dfsg-2
-   Version table:
-  *** 6.1.4-dfsg-2 500
-         500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
-         500 http://de.archive.ubuntu.com/ubuntu focal/multiverse i386 Packages
-         100 /var/lib/dpkg/status
+   Installed: 6.1.4-dfsg-2
+   Candidate: 6.1.4-dfsg-2
+   Version table:
+  *** 6.1.4-dfsg-2 500
+         500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
+         500 http://de.archive.ubuntu.com/ubuntu focal/multiverse i386 Packages
+         100 /var/lib/dpkg/status
  
  3) What I expect:
  Copy-and-paste to work as before on 18.04.
  
  4) What happened instead:
  It does not work. Even after purging and reinstalling it with apt.
  
  Related error messages on first reboot:
  "VBoxCliebt crashed with SIGSEGV in XQueryExtension()"
  
  and in /var/log:
  ERROR: apport (pid 1626) Wed Apr  8 16:33:04 2020: executable: /usr/bin/VBoxClient (command line "/usr/bin/VBoxClient --vmsvga-x11")

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https://bugs.launchpad.net/bugs/1871658

Title:
  VBoxClient does not work after upgrade to 20.04 LTS Beta

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I run Ubuntu Studio 18.04 in VirtualBox VM.
  I did a upgrade to 19.10 and then to 20.04 (development)
  VirtualBox guest additions were installed via apt.

  1) lsb_release -rd
  Description:	Ubuntu Focal Fossa (development branch)
  Release:	20.04

  2)
  virtualbox-guest-x11:
    Installed: 6.1.4-dfsg-2
    Candidate: 6.1.4-dfsg-2
    Version table:
   *** 6.1.4-dfsg-2 500
          500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
          100 /var/lib/dpkg/status

  virtualbox-guest-dkms:
    Installed: 6.1.4-dfsg-2
    Candidate: 6.1.4-dfsg-2
    Version table:
   *** 6.1.4-dfsg-2 500
          500 http://de.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages
          500 http://de.archive.ubuntu.com/ubuntu focal/multiverse i386 Packages
          100 /var/lib/dpkg/status

  3) What I expect:
  Copy-and-paste to work as before on 18.04.

  4) What happened instead:
  It does not work. Even after purging and reinstalling it with apt.

  Related error messages on first reboot:
  "VBoxCliebt crashed with SIGSEGV in XQueryExtension()"

  and in /var/log:
  ERROR: apport (pid 1626) Wed Apr  8 16:33:04 2020: executable: /usr/bin/VBoxClient (command line "/usr/bin/VBoxClient --vmsvga-x11")

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