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Old 11-09-2015, 01:42 AM   #1
stexnix
LQ Newbie
 
Registered: Nov 2015
Distribution: Fedora23
Posts: 7

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Fedora23 + KVM - No Screen on Linux VM

I use Fedora 23+KVM+virt-manager with the latest updates.

I configured and installed a Windows-VM KVM successfully with virt-manager.

Now i tried to install CentOS7 and Ubuntu 14.04. If i start the VM i still get only black screen, it doesn't matter what video(QXA, VGA VMVGA,...) and display (spice or vnc) settings i use.

If i use spice-display and start the VM i get black screen, 100% CPU load and nothing else.

If i use VNC-display and start the VM a text appears on screen: "Guest has not initialized display (yet)." and also 100% CPU load.


Also weird:
Few weeks ago i play around with gnome-Boxes (and before Fedora become update to 23) and created a Centos6.4 VM without any problems. Meanwhile i delet this VM because it was only for test gnome-Boxes.

If i now create a VM with Boxes....it doesn't work...black screen and 100% cpu load....

Is there any bug or am i the bug?
 
Old 11-09-2015, 06:37 PM   #2
ericson007
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Registered: Sep 2004
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Can you check the actual xml file to have a look in there what video it tries using? I have read before vmvga can cause that sort of issue at times.

Please post the vm xml.
 
Old 11-09-2015, 10:27 PM   #3
stexnix
LQ Newbie
 
Registered: Nov 2015
Distribution: Fedora23
Posts: 7

Original Poster
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Quote:
Originally Posted by ericson007 View Post
Can you check the actual xml file to have a look in there what video it tries using? I have read before vmvga can cause that sort of issue at times.

Please post the vm xml.
sure

Code:
<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:
  virsh edit centos7.0
or other application using the libvirt API.
-->

<domain type='kvm'>
  <name>centos7.0</name>
  <uuid>8b1ed9b2-5fbe-4373-a341-26049307d535</uuid>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>2</vcpu>
  <os>
    <type arch='x86_64' machine='pc-i440fx-2.4'>hvm</type>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
    <vmport state='off'/>
  </features>
  <cpu mode='host-model'>
    <model fallback='allow'/>
    <topology sockets='1' cores='2' threads='1'/>
  </cpu>
  <clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <pm>
    <suspend-to-mem enabled='no'/>
    <suspend-to-disk enabled='no'/>
  </pm>
  <devices>
    <emulator>/usr/bin/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source file='/run/media/s/VMs/centos.img'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <boot order='1'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <master startport='0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0' multifunction='on'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci2'>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:01:90:c2'/>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <channel type='unix'>
      <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/centos7.0.org.qemu.guest_agent.0'/>
      <target type='virtio' name='org.qemu.guest_agent.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <channel type='spicevmc'>
      <target type='virtio' name='com.redhat.spice.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='2'/>
    </channel>
    <input type='tablet' bus='usb'/>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='spice' autoport='yes'>
      <image compression='off'/>
    </graphics>
    <sound model='ich6'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </sound>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <redirdev bus='usb' type='spicevmc'>
    </redirdev>
    <redirdev bus='usb' type='spicevmc'>
    </redirdev>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </memballoon>
  </devices>
</domain>
 
Old 11-12-2015, 02:14 PM   #4
maennlse
LQ Newbie
 
Registered: Nov 2015
Posts: 1

Rep: Reputation: Disabled
i had a similar (same?) problem.
found this: https://lacyc3.eu/qemu-guest-has-not...ed-the-display

cant read Hungary, but changing `/etc/libvirt/qemu/<vm name>.xml` as mentioned solved my problem.
Code:
  <os>
    <type arch='x86_64' machine='pc-i440fx-2.4'>hvm</type>
  </os>
Code:
  <os>
    <type arch='x86_64' machine='pc-i440fx-2.3'>hvm</type>
  </os>
and restarting libvirtd ... `systemctl restart libvirtd.service`
Last edited by maennlse; 11-12-2015 at 02:17 PM.
 
1 members found this post helpful.
Old 11-12-2015, 03:29 PM   #5
berndbausch
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Registered: Nov 2013
Location: Tokyo
Distribution: Mostly Ubuntu and Centos
Posts: 6,316

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Quote:
Originally Posted by maennlse View Post
changing `/etc/libvirt/qemu/<vm name>.xml` as mentioned solved my problem.
Picking a nit perhaps, but rather than editing the file and restarting libvirtd, you should accomplish the same with
Code:
virsh edit <vm name>
At least on Centos. Perhaps Fedora is so bleeding edge all that is different?
 
1 members found this post helpful.
Old 11-12-2015, 10:45 PM   #6
stexnix
LQ Newbie
 
Registered: Nov 2015
Distribution: Fedora23
Posts: 7

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by maennlse View Post
i had a similar (same?) problem.
found this: https://lacyc3.eu/qemu-guest-has-not...ed-the-display

cant read Hungary, but changing `/etc/libvirt/qemu/<vm name>.xml` as mentioned solved my problem.
Code:
  <os>
    <type arch='x86_64' machine='pc-i440fx-2.4'>hvm</type>
  </os>
Code:
  <os>
    <type arch='x86_64' machine='pc-i440fx-2.3'>hvm</type>
  </os>
and restarting libvirtd ... `systemctl restart libvirtd.service`

man....you made my week, it works!
 
  


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