I am upgrading from virtualbox to virt-manager kvm on my fedora 42 kde host. I have powerful and modern hardware on my host, AMD processor and video card.
everything works fine on virtualbox. no problems at all.
My Display: 3440x1440 @ 144 Hz in 34
Installed the latest version of whonix.
1 problem: in xfce in whonix there is no screen resolution suitable for 21:9, as a result I have black bars.
This problem was solved with this script GitHub - h0ek/x-resize: Auto-resize X screen on resolution change for Kali with XFCE on KVM. .
2 problem: window sizes, fonts and icons.
I managed to partially fix it by setting 192 DPI and increasing the size of the panel, icons. For now I’m staying with this setting.
I also tried such scale settings: but in some programs, for example installed through flatpak interface of buttons and fonts was
small.
sudo xfconf-query -c xsettings -p /Gdk/WindowScalingFactor -s 2
sudo xfconf-query -c xfwm4 -p /general/theme -s Default-xhdpi
Go to Settings Manager > Appearance > Fonts > Custom DPI setting and change from 96 to 192
sudo nano /etc/environment
GDK_DPI_SCALE=0.5
3 and the main problem now is the speed of animation and system performance. Everything is very slow, any program windows lag, open with a delay. This does not get fixed.
For example, telegram is very slow, chat opens only 2 seconds after clicking.
I tried changing the display resolution in whonix, but it didn’t affect the brakes.
I’ve now enabled virtio 3D and OpenGL - but it didn’t improve the situation.
On the second monitor which is 60Hz everything is the same.
Here are my XML settings
<domain type="kvm">
<name>Whonix-Workstation</name>
<metadata>
<libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
<libosinfo:os id="http://debian.org/debian/12"/>
</libosinfo:libosinfo>
</metadata>
<memory dumpCore="off" unit="KiB">9437184</memory>
<currentMemory unit="KiB">9437184</currentMemory>
<memoryBacking>
<nosharepages/>
<source type="memfd"/>
<access mode="shared"/>
<allocation mode="ondemand"/>
<discard/>
</memoryBacking>
<vcpu placement="static">16</vcpu>
<os>
<type arch="x86_64" machine="pc-q35-9.2">hvm</type>
<boot dev="hd"/>
<bootmenu enable="yes"/>
</os>
<features>
<acpi/>
<hap state="on"/>
<pvspinlock state="on"/>
<pmu state="off"/>
<vmport state="off"/>
</features>
<cpu mode="host-passthrough" check="none" migratable="on"/>
<clock offset="utc">
<timer name="rtc" present="no"/>
<timer name="kvmclock" present="no"/>
<timer name="pit" present="no"/>
<timer name="hpet" present="no"/>
<timer name="hypervclock" 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-system-x86_64</emulator>
<disk type="file" device="disk">
<driver name="qemu" type="qcow2"/>
<source file="/media/veracrypt1/images/Whonix-Workstation.qcow2"/>
<target dev="vda" bus="virtio"/>
<address type="pci" domain="0x0000" bus="0x04" slot="0x00" function="0x0"/>
</disk>
<controller type="virtio-serial" index="0">
<address type="pci" domain="0x0000" bus="0x02" slot="0x00" function="0x0"/>
</controller>
<controller type="usb" index="0" model="qemu-xhci" ports="15">
<address type="pci" domain="0x0000" bus="0x03" slot="0x00" function="0x0"/>
</controller>
<controller type="sata" index="0">
<address type="pci" domain="0x0000" bus="0x00" slot="0x1f" function="0x2"/>
</controller>
<controller type="pci" index="0" model="pcie-root"/>
<controller type="pci" index="1" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="1" port="0x10"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x0" multifunction="on"/>
</controller>
<controller type="pci" index="2" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="2" port="0x11"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x1"/>
</controller>
<controller type="pci" index="3" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="3" port="0x12"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x2"/>
</controller>
<controller type="pci" index="4" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="4" port="0x13"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x3"/>
</controller>
<controller type="pci" index="5" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="5" port="0x14"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x4"/>
</controller>
<controller type="pci" index="6" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="6" port="0x15"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x5"/>
</controller>
<controller type="pci" index="7" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="7" port="0x16"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x6"/>
</controller>
<controller type="pci" index="8" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="8" port="0x17"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x7"/>
</controller>
<filesystem type="mount" accessmode="passthrough">
<driver type="virtiofs"/>
<source dir="/media/veracrypt1/Shared/"/>
<target dir="shared"/>
<address type="pci" domain="0x0000" bus="0x07" slot="0x00" function="0x0"/>
</filesystem>
<interface type="network">
<mac address="52:54:00:ae:68:d6"/>
<source network="Whonix-Internal"/>
<model type="virtio"/>
<driver name="qemu"/>
<address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/>
</interface>
<serial type="pty">
<target type="isa-serial" port="0">
<model name="isa-serial"/>
</target>
</serial>
<console type="pty">
<target type="serial" port="0"/>
</console>
<channel type="spicevmc">
<target type="virtio" name="com.redhat.spice.0"/>
<address type="virtio-serial" controller="0" bus="0" port="1"/>
</channel>
<input type="tablet" bus="virtio">
<address type="pci" domain="0x0000" bus="0x06" slot="0x00" function="0x0"/>
</input>
<input type="keyboard" bus="ps2"/>
<input type="tablet" bus="virtio">
<address type="pci" domain="0x0000" bus="0x08" slot="0x00" function="0x0"/>
</input>
<input type="mouse" bus="ps2"/>
<graphics type="spice">
<listen type="none"/>
<clipboard copypaste="yes"/>
<filetransfer enable="no"/>
<gl enable="yes" rendernode="/dev/dri/by-path/pci-0000:03:00.0-render"/>
</graphics>
<sound model="ich9">
<codec type="output"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x1b" function="0x0"/>
</sound>
<audio id="1" type="spice"/>
<video>
<model type="virtio" heads="1" primary="yes">
<acceleration accel3d="yes"/>
</model>
<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0"/>
</video>
<redirdev bus="usb" type="spicevmc">
<address type="usb" bus="0" port="2"/>
</redirdev>
<watchdog model="itco" action="reset"/>
<memballoon model="none"/>
<rng model="virtio">
<rate bytes="1024" period="1000"/>
<backend model="random">/dev/random</backend>
<address type="pci" domain="0x0000" bus="0x05" slot="0x00" function="0x0"/>
</rng>
</devices>
</domain>
