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 only 2 of 6 USB2.0 ports work after recovery from suspend 
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Joined: Sat Feb 08, 2020 3:12 am
Posts: 5
Post only 2 of 6 USB2.0 ports work after recovery from suspend
Hi all,

the heading pretty well says it all. When the fitpc4 comes back from a power "suspend" only 2 USB2.0 ports work (one on the front and one on the rear).

The USB3.0 ports both work.

I tried various GRUB_CMDLINE_LINUX_DEFAULT options before concluding that these were unlikely to have anything to do with the odd pattern of some working and some not working.

is this a known problem? is there a fix.

Bye


Thu Feb 20, 2020 12:10 pm
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 416
Post Re: only 2 of 6 USB2.0 ports work after recovery from suspen
We're not familiar with such issue.
I'd suggest to see if re-installing the OS to its latest version may help:
http://fit-pc.com/wiki/index.php?title= ... _Mint_19.2


Thu Feb 20, 2020 4:41 pm
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Joined: Sat Feb 08, 2020 3:12 am
Posts: 5
Post Re: only 2 of 6 USB2.0 ports work after recovery from suspen
Hi tamir and Forum,

I have upgraded my system from Mint 19.0 to 19.3. The problem persists.
However, I don't think that my initial report was accurate.

1) I loaded every USB with a thumb drive. The "lsusb" output is below
2) suspended the machine and then checked "lsusb" again. All the thumb drive are mounted but the mouse is missing.
The mouse was quite dead with no light (optical mouse)
3) unplugging the mouse and putting it back into the same USB port does not fix it.
4) however the USB port is still alive -- I can put a USB in it and it mounts
5) putting the mouse into another USB will fix it it.
6) however if I suspend again I lose the mouse and the keyboard! This is what confused me before.

so the problem is not that the USB ports die, it is specific to the mouse and then the keyboard.
I think perhaps that this is not a fitpc4 problem. I see posts on the web about mouse and keyboard not recovering after
a suspend i.e.
https://askubuntu.com/questions/1142841 ... end-to-ram
I have tried a few of these remedies but without success so far.

Bye



lsusb before suspend
Bus 002 Device 004: ID ffff:5678
Bus 002 Device 003: ID 18a5:0302 Verbatim, Ltd Flash Drive
Bus 002 Device 005: ID 0781:5567 SanDisk Corp. Cruzer Blade
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 003: ID 413c:2010 Dell Computer Corp. Keyboard
Bus 004 Device 002: ID 413c:1003 Dell Computer Corp. Keyboard Hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 05dc:a793 Lexar Media, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 8087:0a2b Intel Corp.
Bus 003 Device 002: ID 0461:4d15 Primax Electronics, Ltd Dell Optical Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 003: ID 1f75:0903 Innostor Technology Corporation
Bus 006 Device 002: ID 0781:5595 SanDisk Corp.
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


lsusb after suspend
Bus 002 Device 004: ID ffff:5678
Bus 002 Device 003: ID 18a5:0302 Verbatim, Ltd Flash Drive
Bus 002 Device 005: ID 0781:5567 SanDisk Corp. Cruzer Blade
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 005: ID 413c:2010 Dell Computer Corp. Keyboard
Bus 004 Device 004: ID 413c:1003 Dell Computer Corp. Keyboard Hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 05dc:a793 Lexar Media, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 003: ID 1f75:0903 Innostor Technology Corporation
Bus 006 Device 002: ID 0781:5595 SanDisk Corp.
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


Sun Feb 23, 2020 10:43 am
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 416
Post Re: only 2 of 6 USB2.0 ports work after recovery from suspen
Please clarify if the below replication steps are correct on a fit-pc4 installed with latest Linux mint:

1. Machine has KB and mouse connected to any USB port.
2. Put the machine into sleep (suspend)
3. Wake up the machine via KB or mouse (works?)
4. Mouse doesn't respond at this point
5. Moving the mouse to another USB port - mouse is now responding
5.1 - If at step 5 instead of moving mouse to alt USB port, you put the machine back into suspend again, when the machine wakes up from either KB or mouse - now both KB and mouse do not respond.
NOTE: A storage thumb drive works on any USB port throughout all steps, the USB ports are actually functional

Question - is the USB thumb drive you're using is USB2.0 or USB3.0 ?

Please clarify the above.


Mon Feb 24, 2020 9:39 am
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Joined: Sat Feb 08, 2020 3:12 am
Posts: 5
Post Re: only 2 of 6 USB2.0 ports work after recovery from suspen
Hi tamir and Forum,

That is all correct, except 5.1. I move the mouse to a working USB port, suspend and then neither mouse or KB are working.

However it seems to depend on which USB port is used and which port the mouse is moved to etc. I can not figure out what is happening. I have recorded which USB port I used etc for one example and run through the sequence a couple of times to make sure that this is exactly what is happening.

1) below is one path through suspending and moving devices.
2) some combinations of devices and USB ports work without a problem. I now have my kbd in B-USB2{1}, mouse in B-USB3{2}, and yubikey in F2. This works OK.
3) The other USB ports all seem to be OK for mounting USB storage thumb drives. I put a thumb drive in very free port and suspended; they were all mounted and accessible afterwards.

I hope this clarifies things.

abbreviations
front USBs -- F1-4
back USB -- B-USB2{1,2} and B-USB3{1,2}

1)I have kdb and mouse in B-USB2{1,2}
2) suspend
3) mouse stops working. It now only works in F2 or B-USB3{1,2}. I move it to F2.
4) suspend
5) mouse not working
KBD not working -- lights are on but it wont type. However, pushing a key woke the machine from suspend
6) move mouse, kdb to B-USB3{1,2} -- they work in these ports
7) suspend
8) everything works


Fri Feb 28, 2020 3:51 am
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 416
Post Re: only 2 of 6 USB2.0 ports work after recovery from suspen
We are trying to replicate the behavior described on a similar system, I'll reply back as soon as I we do.


Wed Mar 11, 2020 4:03 pm
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