<div dir="ltr">Hello guys,<div><br></div><div>I have a problem when using my MSI R9 380 4G graphic card as GPU passthrough with KVM.</div><div><br></div><div>At the first linux boot (Fedora 23) I am able to successfully start virtual machine and it works!<br><br>However if i will shut down virtual machine and start it again - the screen will stay blank!</div><div><br></div><div>So far I have been able to find on the internet that some graphic cards just can not reinitialize itself when there is no power off/on, which could be the case of mine as well.</div><div>Also I am very much surprised that this graphic card has no UEFI rom!</div><div><br></div><div>Any help would be appreciated</div><div><br></div><div><br></div><div><div><br></div><div>[root@brutus-coreos ~]# virsh start winos1</div><div>Domain winos1 started</div></div><div><br></div><div><br></div><div>dmesg output after second boot of the virtual machine winos1</div><div><br></div><div><br></div><div><div>[ 338.346776] input: Microsoft Microsoft® Nano Transceiver v2.0 as /devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.0/0003:045E:0800.0007/input/input23</div><div>[ 338.397715] hid-generic 0003:045E:0800.0007: input,hidraw0: USB HID v1.11 Keyboard [Microsoft Microsoft® Nano Transceiver v2.0] on usb-0000:00:14.0-10/input0</div><div>[ 338.402847] input: Microsoft Microsoft® Nano Transceiver v2.0 as /devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.1/0003:045E:0800.0008/input/input24</div><div>[ 338.403605] hid-generic 0003:045E:0800.0008: input,hidraw1: USB HID v1.11 Mouse [Microsoft Microsoft® Nano Transceiver v2.0] on usb-0000:00:14.0-10/input1</div><div>[ 338.419310] input: Microsoft Microsoft® Nano Transceiver v2.0 as /devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.2/0003:045E:0800.0009/input/input25</div><div>[ 338.470855] hid-generic 0003:045E:0800.0009: input,hiddev0,hidraw2: USB HID v1.11 Device [Microsoft Microsoft® Nano Transceiver v2.0] on usb-0000:00:14.0-10/input2</div><div>[ 754.055255] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=io+mem:owns=none</div><div>[ 754.087966] xhci_hcd 0000:00:14.0: remove, state 4</div><div>[ 754.087982] usb usb2: USB disconnect, device number 1</div><div>[ 754.090201] xhci_hcd 0000:00:14.0: USB bus 2 deregistered</div><div>[ 754.090399] xhci_hcd 0000:00:14.0: remove, state 1</div><div>[ 754.090409] usb usb1: USB disconnect, device number 1</div><div>[ 754.090413] usb 1-2: USB disconnect, device number 2</div><div>[ 754.090964] usb 1-8: USB disconnect, device number 3</div><div>[ 754.091904] usb 1-10: USB disconnect, device number 4</div><div>[ 754.222281] xhci_hcd 0000:00:14.0: USB bus 1 deregistered</div><div>[ 755.359725] vfio_ecap_init: 0000:01:00.0 hiding ecap 0x19@0x270</div><div>[ 755.359733] vfio_ecap_init: 0000:01:00.0 hiding ecap 0x1b@0x2d0</div><div>[ 755.384598] vfio-pci 0000:03:00.0: enabling device (0000 -> 0002)</div><div>[ 755.485743] vfio_ecap_init: 0000:03:00.0 hiding ecap 0x1e@0x154</div></div><div><br></div><div><br></div><div>screen is blank - I have to reboot my Linux machine in order to be able to start this virtual machine once again</div><div><br></div><div><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div>David Hlacik</div><div> </div><div>+420-777-307-745 | <a href="mailto:david@hlacik.cz" target="_blank">david@hlacik.cz</a></div><div><br></div><div dir="ltr"><a href="http://cz.linkedin.com/in/hlacik" target="_blank"><img src="https://static.licdn.com/scds/common/u/img/webpromo/btn_viewmy_160x25.png" alt=" View David Hlacik's profile on LinkedIn"></a><br></div></div></div></div></div> </div></div>