module hub vint 6 only detected after unplug / plug

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francoisbilberry
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module hub vint 6 only detected after unplug / plug

Postby francoisbilberry » Wed Apr 18, 2018 8:10 am

hi all,

i am booting my PC with the hub vint 6 plugged in a usb port.
when i do lusb i dont see it.

so i unplug, and then plug it back.
by doing lsusb,i finally have my device appearing.

Do you have a solution ?
i absolutly need to have this device up at startup of PC.
this is for one of our customer.

Thank you,
François

fraser
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Re: module hub vint 6 only detected after unplug / plug

Postby fraser » Wed Apr 18, 2018 10:44 am

Are you using a USB isolator? or a USB hub?
Do you have anything else plugged into USB?
What kind of machine is running your OS?

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Patrick
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Re: module hub vint 6 only detected after unplug / plug

Postby Patrick » Wed Apr 18, 2018 11:04 am

Do you see any USB related errors in the system log?

-Patrick

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burley
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Re: module hub vint 6 only detected after unplug / plug

Postby burley » Wed Apr 18, 2018 12:39 pm

Also, what kind of motherboard do you have? Certain Asus chipsets have known issues with booting up with USB devices attached.
Brian Burley
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francoisbilberry
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Re: module hub vint 6 only detected after unplug / plug

Postby francoisbilberry » Wed Apr 18, 2018 12:57 pm

Hi all,

Thank you for your answers !

Are you using a USB isolator? or a USB hub?
Do you have anything else plugged into USB?
What kind of machine is running your OS?


I am using a hub vint 6 :
https://www.gotronic.fr/art-module-hub- ... -27027.htm
this one.
I have others stuff plugged and @ startup there are no issues with them.
Thas why i think its a problem due to the phidget module.
I am running Ubuntu 16.04.

Do you see any USB related errors in the system log?


No in dmesg, i dont have any issue.
like if power was not arrinving to the module.
but the other ones (not phidget modules) i have are powered so thats strange.

Also, what kind of motherboard do you have? Certain Asus chipsets have known issues with booting up with USB devices attached.

yes its asus z720 or something like that.
but why other modules are ok ?

Thank you
François

francoisbilberry
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Re: module hub vint 6 only detected after unplug / plug

Postby francoisbilberry » Thu Apr 19, 2018 4:56 am

Hi All,

I bought a powered USB Hub and every thing seems to be ok !

Thanks for your help,
Regards,
François


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