So I'm trying to set up remoting into another machine over ssh -X on the same Wi-Fi LAN so that I can use VirtualBox on the server machine from the client machine. VirtualBox runs fine. VMs run fine (so far). But it displays unusably badly.
In the VirtualBox manager interface, every visible "section" of the GUI is cut in half and one of each half does not redraw in real time. When running VirtualBox VMs, there is a lot of display tearing on the VM screen and often the VM screen stops updating.
Both client and server machines are running Xubuntu 20.04. VirtualBox version on the server is 6.0.24 and changing that is not currently an option. (VirtualBox is not installed on the client, which is not powerful enough to run the VMs in question.) LIBGL_ALWAYS_SOFTWARE=1 is set because it fixed similar issues in other Qt 5 apps. But it doesn't make any difference here (nor does setting it when physically on the server machine result in the issue showing up there). QT_QPA_PLATFORMTHEME is not set, and setting it didn't make any difference to this issue.
Remoting into the VMs directly is not an option because they are disposable and sometimes they are offline live CD environments that don't have that capability available.
This setup will mostly be used to compile and test software, so I don't need or expect gaming-capable performance across the connection, but I do need to be able to see the graphics well and in real time. How to get VirtualBox's graphics when used remotely over ssh -X to be on par with other remote apps' graphics?
In the VirtualBox manager interface, every visible "section" of the GUI is cut in half and one of each half does not redraw in real time. When running VirtualBox VMs, there is a lot of display tearing on the VM screen and often the VM screen stops updating.
Both client and server machines are running Xubuntu 20.04. VirtualBox version on the server is 6.0.24 and changing that is not currently an option. (VirtualBox is not installed on the client, which is not powerful enough to run the VMs in question.) LIBGL_ALWAYS_SOFTWARE=1 is set because it fixed similar issues in other Qt 5 apps. But it doesn't make any difference here (nor does setting it when physically on the server machine result in the issue showing up there). QT_QPA_PLATFORMTHEME is not set, and setting it didn't make any difference to this issue.
Remoting into the VMs directly is not an option because they are disposable and sometimes they are offline live CD environments that don't have that capability available.
This setup will mostly be used to compile and test software, so I don't need or expect gaming-capable performance across the connection, but I do need to be able to see the graphics well and in real time. How to get VirtualBox's graphics when used remotely over ssh -X to be on par with other remote apps' graphics?