The question that QGC and Pixhawk can't connect

1

Hello
I am using a dual system, Ubuntu version 18.04, QGC version 4.1 4.2. I want to try to burn the firmware into Pixhawk6c, but it keeps prompting the following error. I am not using a virtual machine. Do you know what the reason is?
Error as follow↓

【## Found device: Pixhawk
Error: Get Board Info: Sync: Send Command: Get Command Response: Timeout waiting for bytes to be available
Upgrade cancelled

If upgrade failed, make sure to connect directly to a powered USB port on your computer, not through a USB hub. Also make sure you are only powered via USB not battery.】
2

Have you tried connecting directly with a USB and not through a USB hub?

3

Yes, I connected it directly via a USB cable.

4

Have you tried with the latest stable release of QGC? maybe your version is too old

5

My QGC version is 4.2. Because Ubuntu 18.04 can only adapt to versions 4.0 4.1 4.2, I chose 4.2 which is the highest version.

6

But I try on Windows system, it can work. The QGC version on my Windows is also 4.2

7

I also encountered the same issue, but I run on VMware. When using the command ‘make px4_fmu-v6xrt_default upload’ to download firmware, it will get stuck in ‘waiting for bootloader’.