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I have a USB 3.0 drive that is detected and shown (usually) as /dev/sdg when I plug it in. The only 3.0 ports are located on an addon PCI-Express card. When I reboot, the device is missing until I unplug/insert the usb cable again.
I booted the machine with the drive connected and did dmesg, lspci, lsusb, and ls -l /dev/sd*. Then I unplugged/replugged the drive and did the same commands.
Before
dmesg
lspci
lsusb
ls -l /dev/sd*
After
dmesg
lspci
lsusb
ls -l /dev/sd*
Last edited by x79 (2016-08-24 03:01:32)
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dmesg
in general. I this case I would try
dmesg | grep -i usb
"Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the present." - Master Oogway
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Updated with logs but I don't see anything that would help :-/
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I would compare the modules that are loaded before and after a plug/unplug cycle.
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I would compare the modules that are loaded before and after a plug/unplug cycle.
loaded modules are identical :-/
lsmod
Only changes are some numbers in the 'Used by' column for 3 sound modules.
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Only changes are some numbers in the 'Used by' column for 3 sound modules.
That does make a difference.
Let's do Jason's approach more systematically:
Before the plugin, type
lsmod > before.asc
after the plugin, type
lsmod > after.asc
and finally
diff before.asc after.asc
"Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the present." - Master Oogway
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x79 wrote:Only changes are some numbers in the 'Used by' column for 3 sound modules.
That does make a difference.
Let's do Jason's approach more systematically:
Before the plugin, typelsmod > before.asc
after the plugin, type
lsmod > after.asc
and finally
diff before.asc after.asc
diff lsmod.txt lsmod2.txt
I had compared them using Winmerge. I only dismissed it because I didn't think the sound modules were relevant to this issue.
Last edited by x79 (2016-08-24 11:40:49)
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