On Fri, Nov 24, 2017 at 5:50 PM, FERNANDO FREDIANI < [email protected]> wrote:
> I have made a Export of the same VM created in oVirt to a server running > pure qemu/KVM and which creates new VMs profiles with vram 65536 and it > turned on the Windows 10 which run perfectly with that configuration. > > Was reading some documentation that it may be possible to change the file > /usr/share/ovirt-engine/conf/osinfo-defaults.properties in order to > change it for the profile you want but I am not sure how these changed > should be made if directly in that file, on another one just with custom > configs and also how to apply them immediatelly to any new or existing VM ? > I am pretty confident once vram is increased that should resolve the issue > with not only Windows 10 VMs, but other as well. > > Anyone can give a hint about the correct procedure to apply this change ? > > Thanks in advance. > Fernando > > > Hi Fernando, based on this: https://www.ovirt.org/develop/release-management/features/virt/os-info/ you should create a file of kind /etc/ovirt-engine/osinfo.conf.d/20-overload.properties but I think you can only overwrite the multiplier and not directly the vgamem (or vgamem_mb in rhel 7) values so that you could put something like this inside it: os.windows_10.devices.display.vramMultiplier.value = 2 os.windows_10x64.devices.display.vramMultiplier.value = 2 I think there are no values for vgamem_mb I found these two threads in 2016 http://lists.ovirt.org/pipermail/users/2016-June/073692.html that confirms you cannot set vgamem and http://lists.ovirt.org/pipermail/users/2016-June/073786.html that suggests to create a hook Just a hack that came into mind: in a CentOS vm of mine in a 4.1.5 environment I see that by default I get this qemu command line -device qxl-vga,id=video0,ram_size=67108864,vram_size=33554432, vram64_size_mb=0,vgamem_mb=16,bus=pci.0,addr=0x2 Based on this: https://www.ovirt.org/documentation/draft/video-ram/ you have vgamem = 16 MB * number_of_heads I verified that if I edit the vm in the gui and set Monitors=4 in console section (but with the aim of using only the first head) and then I power off and power on the VM, I get now -device qxl-vga,id=video0,ram_size=268435456,vram_size=134217728, vram64_size_mb=0,vgamem_mb=64,bus=pci.0,addr=0x2 I have not a client to connect and verify any improvement: I don't know if you will be able to use all the new ram in the only first head with a better experience or if it is partitioned in some way... Could you try eventually? Gianluca
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