Recently in the busy practice of Red Hat New Edition (RHEL7) from RHCE to RHCA 8 courses of practice, so recently has been using a KVM virtual machine practice, different from the previous full command line interface operation, individual will involve the problem under the graphics, When viewing the KVM virtual machine via Virt-manager, the following error was found: Error connecting to graphical Console:error initializing USB support:other errors[- 99].
There was an error attempting to remove the USB device from the management tool first because the USB device is not available. When the display item is opened, it is found that the default protocol used is spice, and since the spice protocol requires the Spice client to be installed on the guest host, it is considered that the problem is resolved if it is replaced with a VNC connection. You can connect properly--but it is recommended that you install the Spice Server tool, because the spice transmission is really stronger than VNC.
Okay, the above is small series for you to introduce the error initializing USB support:other errors[-99] solution, I hope the article can help you.
