Can't launch the greeter even using official Pop!_OS ISO

[fulalas]

Testing the latest Pop!_OS Cosmic ISO (pop-os_24.04_amd64_intel_17.iso) in VirtualBox, I can't launch the greeter by login out. Every time I try to logout, the session just restarts. The lock screen works though.

On my distro, where I build Cosmic from scratch, the same thing happens.

I wonder if this project is an actual application with UI (like sddm, gdm, etc), or just a helper.

[jackpot51]

Can you detail the VirtualBox configuration?

[fulalas]

Sure:

<?xml version="1.0"?>
<!--
** DO NOT EDIT THIS FILE.
** If you make changes to this file while any VirtualBox related application
** is running, your changes will be overwritten later, without taking effect.
** Use VBoxManage or the VirtualBox Manager GUI to make changes.
-->
<VirtualBox xmlns="http://www.virtualbox.org/" version="1.19-linux">
  <Machine uuid="{8617d1b1-73d1-4f83-90d3-4d9640fc593c}" name="Linux" OSType="Linux26_64" snapshotFolder="Snapshots" lastStateChange="2025-07-01T15:26:24Z">
    <MediaRegistry>
      <HardDisks>
        <HardDisk uuid="{17fb5e59-1034-4b30-8b76-1152393cf5f8}" location="Linux.vdi" format="VDI" type="Normal"/>
      </HardDisks>
      <DVDImages>
        <Image uuid="{9eec82ce-664c-45a0-80dc-be882e6f849c}" location="/tmp/1.iso"/>
      </DVDImages>
    </MediaRegistry>
    <ExtraData>
      <ExtraDataItem name="GUI/LastCloseAction" value="PowerOff"/>
      <ExtraDataItem name="GUI/LastNormalWindowPosition" value="851,371,853,576"/>
    </ExtraData>
    <Hardware>
      <Memory RAMSize="8192"/>
      <HID Pointing="USBTablet"/>
      <Boot>
        <Order position="1" device="DVD"/>
        <Order position="2" device="HardDisk"/>
        <Order position="3" device="None"/>
        <Order position="4" device="None"/>
      </Boot>
      <Display controller="VMSVGA" VRAMSize="256" accelerate3D="true"/>
      <Firmware/>
      <BIOS>
        <IOAPIC enabled="true"/>
        <SmbiosUuidLittleEndian enabled="true"/>
        <AutoSerialNumGen enabled="true"/>
      </BIOS>
      <USB>
        <Controllers>
          <Controller name="OHCI" type="OHCI"/>
          <Controller name="EHCI" type="EHCI"/>
        </Controllers>
      </USB>
      <Network>
        <Adapter slot="0" enabled="true" MACAddress="0800276D2220" type="82540EM">
          <NAT localhost-reachable="true"/>
        </Adapter>
      </Network>
      <AudioAdapter codec="AD1980" useDefault="true" driver="ALSA" enabled="true" enabledOut="true"/>
      <Clipboard/>
      <GuestProperties>
        <GuestProperty name="/VirtualBox/HostInfo/GUI/LanguageID" value="en_US" timestamp="1751383584584483000" flags="RDONLYGUEST"/>
      </GuestProperties>
      <StorageControllers>
        <StorageController name="IDE" type="PIIX4" PortCount="2" useHostIOCache="true" Bootable="true"/>
        <StorageController name="SATA" type="AHCI" PortCount="1" useHostIOCache="false" Bootable="true" IDE0MasterEmulationPort="0" IDE0SlaveEmulationPort="1" IDE1MasterEmulationPort="2" IDE1SlaveEmulationPort="3">
          <AttachedDevice passthrough="false" type="DVD" hotpluggable="false" port="0" device="0">
            <Image uuid="{9eec82ce-664c-45a0-80dc-be882e6f849c}"/>
          </AttachedDevice>
        </StorageController>
      </StorageControllers>
      <RTC localOrUTC="UTC"/>
      <CPU count="8">
        <HardwareVirtExLargePages enabled="false"/>
        <PAE enabled="false"/>
        <LongMode enabled="true"/>
        <X2APIC enabled="true"/>
      </CPU>
    </Hardware>
  </Machine>
</VirtualBox>

VirtualBox Version 7.1.12 r169651