Help Center/ Elastic Cloud Server/ Troubleshooting/ Remote Login/ VNC Login/ Why Are Garbled Characters Displayed When I Log In to My ECS Using VNC?
Updated on 2026-03-23 GMT+08:00
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Why Are Garbled Characters Displayed When I Log In to My ECS Using VNC?

Symptom

After I attempt to log in to my Linux ECS using VNC, garbled characters are displayed, as shown in Figure 1.

Figure 1 Garbled characters on the VNC-based login page

Possible Causes

The cat command was executed to display a large binary file, leading to garbled characters.

Solution

Log in to the ECS as user root and run the following command for recovery:

reset

The reset command is used to re-initialize the ECS and refresh the terminal display. After the reset command is executed, the garbled characters are cleared and the fault is rectified.

Parent topic: VNC Login