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Description of problem: only machine type q35 support S3/S4 for win8 guest. other machine type don't support in RHEL7.0. I attached two snapshots. Version-Release number of selected component (if applicable): qemu-kvm-rhev-1.5.3-10.el7.x86_64 3.10.0-35.el7.x86_64 qxl version: qxlwddm-0.2 How reproducible: 100% Steps to Reproduce: 1.qemu-kvm command line /usr/libexec/qemu-kvm -M pc -cpu SandyBridge -enable-kvm -m 10G -smp 8,sockets=2,cores=4,threads=1 -usb -device usb-tablet,id=input0 -name sluo -uuid ec15da0a-e8a7-42f4-905a-78fed78fd8fd -rtc base=localtime,clock=host,driftfix=slew -device ahci,id=ahci0,addr=0x04 -drive file=/home/win8.1-64.qcow2,if=none,id=drive-sata-disk-0-0,format=qcow2 -device ide-drive,bus=ahci0.0,unit=0,drive=drive-sata-disk-0-0,id=sata-disk-0-0 -netdev tap,script=/etc/qemu-ifup,id=netdev0 -device rtl8139,netdev=netdev0,id=virtio-net-pci0,mac=e4:1f:13:eb:40:24,addr=0x5 -balloon virtio -vnc :1 -monitor stdio -boot menu=on -spice disable-ticketing,port=5931 -vga qxl -global qxl-vga.revision=3 -qmp tcp:0:4444,server,nowait -usb -device usb-mouse,id=mouse -sandbox on -drive file=/root/interface/virtio.qcow2,if=none,id=drive-sata-disk-0-1,format=qcow2 -device virtio-blk-pci,drive=drive-sata-disk-0-1,id=sata-disk-0-1 -drive file=/root/interface/scsi.qcow2,if=none,id=drive-scsi-disk,format=qcow2,aio=native -device virtio-scsi-pci,id=scsi0 -device scsi-hd,drive=drive-scsi-disk,id=data-disk -chardev socket,id=qmp_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1,server,nowait -mon chardev=qmp_id_qmpmonitor1,mode=control -drive file=qxl.iso,if=none,media=cdrom,format=raw,id=drive-ide1-0-2 -device ide-drive,drive=drive-ide1-0-2,id=ide1-0-2,bus=ide.0,unit=0 2.shutdown guest and restart guest with q35 machine type and the same command line as step1 3. Actual results: after step1 win8 guest can not do S3/S4(not support) after step2 win8 guest can do S3/S4(support) Expected results: linux guest don't hit this issue. I only tested win8 64/32 bit guest. not test other windows guest. Additional info:
Created attachment 815968 [details] q35 machine type
Created attachment 815969 [details] pc machine type
Probably a duplicate of one of the other Q35 S3/S4 bugs. It is not supported yet.
Pls retest it w/ CLI -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0
Re-tested this issue with -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0. Before missing this option in cli. result: win8 guest support s3 & s4. but guest show black screen when doing s3/s4(As s3/s4 have more bugs, It is existing bug 1043379).
close as not a bug