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I'm on Linux Mint 19.2,and anything that i connect on my usb ports,either is my android phone or usb flash drive,keeps disconnecting immediately after i connect it. Why is this happening?

EDIT: Sorry,i've noticed now that only the android phone and the usb flash drive it disconnects from any port because i moved the keyboard in another port and it doesn't disconnect.

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    Test these devices on another computer. If they work correctly, USB on your computer may have a problem.
    – harrymc
    Mar 7 at 13:56
  • A few months ago i tested them on my laptop and had no problem.I also think it's a problem with my usb ports,but why the keyboard and mouse works and the other ones don't?
    – fkjdxyz
    Mar 7 at 14:09
  • I can't really say. Perhaps because they use less electricity. A repairman will know more.
    – harrymc
    Mar 7 at 14:15
  • Ok.Thank you so much
    – fkjdxyz
    Mar 7 at 14:19
  • BTW, I've noticed some hubs can be flaky. Also,sometimes it's a loose connector, sometimes a break in a cable as it flexes... and sometimes, something else. Mar 7 at 19:03
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My problem is solved by replacing the PSU(power supply unit).The old power supply that was connected to the motherboard had too many pins and i think it was giving too much power to it.Hope it helps someone.

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