Hi Guys,

Who can give me a help? 
I recently hit the issue that VM can’t boot correctly and show black screen as 
'Guest has not initialized the display (yet)’  as below picture
Qemu version in our system is 5.1 and host os is rehat 7.4. kernel version is 
3.10.0-693.el7.x86_64.  

/usr/bin/qemu-system-x86_64 -name guest=testvm-aer9umfk,debug-threads=on -S 
-object 
secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-1-testvm-aer9umfk/master-key.aes
 -machine pc-i440fx-5.1,accel=kvm,usb=off,dump-guest-core=off,mem-merge=off -m 
4096 -mem-prealloc -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid 
948e807e-51fc-495d-9808-9496185ace92 -smbios type=0,vendor=phegda -smbios 
type=1,manufacturer=phegda.com <http://phegda.com/>,product=hippo 
-no-user-config -nodefaults -chardev 
socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-1-testvm-aer9umfk/monitor.sock,server,nowait
 -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew 
-global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -boot strict=on 
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device 
virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3 -device 
virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive 
if=none,id=drive-ide0-0-0,readonly=on -device 
ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive 
file=/dev/disk/by-id/pbdx-vol-31cbb3dc-da0f-11eb-a280-525400a98761,format=raw,if=none,id=drive-scsi0-0-0-0,cache=writethrough,werror=report,rerror=report
 -device 
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0,bootindex=1
 -drive 
file=/dev/disk/by-id/pbdx-vol-c6cc745b-e40e-4465-93eb-3ba265606ac0,format=raw,if=none,id=drive-scsi0-0-0-1,cache=none,werror=report,rerror=report
 -device 
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=1,drive=drive-scsi0-0-0-1,id=scsi0-0-0-1
 -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=30 -device 
virtio-net-pci,netdev=hostnet0,id=net0,mac=e6:8e:e2:7e:c1:f6,bus=pci.0,addr=0x8 
-netdev tap,fd=31,id=hostnet1,vhost=on,vhostfd=32 -device 
virtio-net-pci,netdev=hostnet1,id=net1,mac=e6:8e:0a:67:aa:1c,bus=pci.0,addr=0x9 
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 
-chardev 
socket,id=charchannel0,path=/var/hippo/channel/948e807e-51fc-495d-9808-9496185ace92.channel,server,nowait
 -device 
virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=cn.com.pbdata.hippo.0
 -vnc 0.0.0.0:0 -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on

That is confuse me for long time. What the potential issue are? Any comments 
are appreciated.



Qemu threads:

 535680 root      20   0 4800152 4.044g  11556 R 79.0  4.3  61:18.03 CPU 0/KVM
 535649 root      20   0 4800152 4.044g  11556 S  0.0  4.3   0:00.21 
qemu-system-x86
 535673 root      20   0 4800152 4.044g  11556 S  0.0  4.3   0:00.00 
qemu-system-x86
 535677 root      20   0 4800152 4.044g  11556 S  0.0  4.3   0:00.00 IO 
mon_iothread
 535681 root      20   0 4800152 4.044g  11556 S  0.0  4.3   0:00.00 CPU 1/KVM
 535684 root      20   0 4800152 4.044g  11556 S  0.0  4.3   0:00.00 vnc_worker

Thanks!

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