On Sat, 2 May 2020 at 00:13, ToddAndMargo via users <users@lists.fedoraproject.org> wrote:
Hi All,

I just installed
     Fedora-Xfce-Live-x86_64-32-1.6.iso

on a customer's old laptop.  The laptop previously had
Windows XP installed on it.  So many things had gone
wrong that it was time to  try something else.

Okay, the laptop now runs beautifully, with one exception.
If I copy files from a USB3 flash drive (all the ports
are USB2) the entire machine freezes: screen, mouse,
keyboard are completely frozen.
_storage 
Now I tortured the machine for hours with streaming
this and that, kpat, etc..  As long as I do not
insert a USB3 flash drive, the machine works perfectly.

May I presume that her USB2 ports are power
compromised?  Your thoughts.

Flash drives shouldn't use much power, but there could
be issues with power management on USB ports
and devices.   

Have you tried USB3 flash drives from multiple
vendors?

Can you boot a different distro from a live CD/DVD?
If you find one that works you can compare module 
versions and options (quirks).

Most systems seem to use usb_storage and uas
modules.

usb_storage has a quirks parameter.  With luck someone
with the same usb chipset has found the quirk setting
you need and put the details where Goggle can find 
them.

--
George N. White III