Powered USB hub?

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hardz
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Powered USB hub?

Post by hardz »

Have read posts that say powered USB hubs cause a problem (white screen) when connected to the Joggler, but have also read that some work fine.

Can anyone provide a link to a powered hub that works with the Joggler?

Thank you
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pete
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Re: Powered USB hub?

Post by pete »

I still could use a powered hub; I mean it still works; just get the white screen though. I tried on a few from 4 port to 7 port hubs.
- Pete
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hardz
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Re: Powered USB hub?

Post by hardz »

Have you tried one that does not produce the white screen?
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pete
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Re: Powered USB hub?

Post by pete »

All the ones that I have have a power plug for 5VDC. I tried every one of them with 5V and they all produced a white screen.
- Pete
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Mevi
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Re: Powered USB hub?

Post by Mevi »

Not quite a hub, but very useful is a xbox HD DVD drive. It has 2 extra USB ports on the back. It's powered and doesn't feed power back into the Joggler. It's not useable with my XP builds though. :(


The White screen you see is the Joggler trying to start up... Feed it a bit more power on the side port (I did this by accident by powering a HDD with my iPad charger, not recommended) and it will even start to boot. Aaargh. No damage done.
I've Got The Moves Like Joggler

Windows XP Professional SP3 plus Tablet PC for O2 Joggler
http://www.jogglerwiki.com/forum/viewto ... ?f=2&t=305

How to build your own Windows XP for the Joggler
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gegs
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Re: Powered USB hub?

Post by gegs »

hardz wrote:Have you tried one that does not produce the white screen?
I'm not sure what kind of powered hub you're using but I've got one of these http://bit.ly/yp3FKy and it works like a dream. You will notice that the connection to the Joggler needs a USB printer cable like this http://bit.ly/wdgVsT but the other connections use standard USB A ports. I'm pretty sure the power is only delivered to the USB A ports and not the USB B port leading to the Joggler. I've never seen the 'white screen' you mention.
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pete
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Re: Powered USB hub?

Post by pete »

Gegs,

I have one of those too; actually it was the first powered hub that I was using. I will give it another try...its been a while.

Mevi,

I have a slim powered DVD/Blue ray drive (mac like) and it works fine; but it doesn't have additional USB ports. It has two USB cables and I powered it via another USB hub.
- Pete
O2 Jogglers running EFI Ubuntu / Squeezeplayer
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hardz
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Re: Powered USB hub?

Post by hardz »

gegs wrote:
hardz wrote:Have you tried one that does not produce the white screen?
I'm not sure what kind of powered hub you're using but I've got one of these http://bit.ly/yp3FKy and it works like a dream. You will notice that the connection to the Joggler needs a USB printer cable like this http://bit.ly/wdgVsT but the other connections use standard USB A ports. I'm pretty sure the power is only delivered to the USB A ports and not the USB B port leading to the Joggler. I've never seen the 'white screen' you mention.
That's exactly the one I had delivered yesterday but the white screen is still a problem :cry:
hardz
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Re: Powered USB hub?

Post by hardz »

Mevi wrote:Not quite a hub, but very useful is a xbox HD DVD drive. It has 2 extra USB ports on the back. It's powered and doesn't feed power back into the Joggler. It's not useable with my XP builds though. :(
Why is it not usable Mevi?
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Mevi
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Re: Powered USB hub?

Post by Mevi »

Sorry, I was being vague. Drivers are fine (already included in the last build) and it IS useable in Windows.... just not as a hub when booting xp off a USB stick plugged in the back of it. I had the same problem with my Zipad netbook dock and gave that to Dan in the end.

Ubuntu, et al boot OK, so it's probably the fussy EFI boot loader. If you choose to boot off the internal USB port and have the DVD drive in the side for your peripherals, it's good.
I've Got The Moves Like Joggler

Windows XP Professional SP3 plus Tablet PC for O2 Joggler
http://www.jogglerwiki.com/forum/viewto ... ?f=2&t=305

How to build your own Windows XP for the Joggler
http://www.jogglerwiki.com/wiki/WindowsXP
danfoshizzle
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Re: Powered USB hub?

Post by danfoshizzle »

It still wont boot either, that zipad is frustrating! but its still getting used on the joggler in my tinkering activities lol
Fullscreen squeezeplay windows, server 2003, foshiz mini v1 and v2, (and a few broken builds) :P so far.....
more to come!!

Jogglers " Obi Wan" according to Pete_c :D
gegs
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Re: Powered USB hub?

Post by gegs »

hardz wrote:That's exactly the one I had delivered yesterday but the white screen is still a problem :cry:
Mevi suggests in an earlier post that the white screen is the Joggler trying to boot (and failing, I presume). Maybe the Joggler has problems booting certain USB sticks but I boot from a Samsung USB portable drive and various Kingston sticks using the hub mentioned in my previous post and I've never seen the white screen you mention.

It's a bit of a long shot, but have you tried a better quality cable to connect the Joggler to the hub? I only mention this because I recently got a camera that charges through mini-USB. I tried a couple of cheap cables but they wouldn't fire up the device. I changed to a better quality (and thicker) cable and suddenly the camera sprung into life. It appears that not all cables of identical spec are the same.

Like I said, a long shot - but worth a try. Mind you, if pete_c's having the problem... his house sounds like the Starship Enterprise and I doubt he's using crap cabling. ;)

P.S. - Not having experienced this before... does the Joggler ever get beyond the white screen? Or does it stick there and refuse to boot?
danfoshizzle
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Re: Powered USB hub?

Post by danfoshizzle »

Wondering if using a lower powered adapter for the usb hub might heed results, or would that be too limiting for devices plugged into it?
Fullscreen squeezeplay windows, server 2003, foshiz mini v1 and v2, (and a few broken builds) :P so far.....
more to come!!

Jogglers " Obi Wan" according to Pete_c :D
gegs
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Re: Powered USB hub?

Post by gegs »

I was getting along fairly well with an un-powered hub until my Seagate portable drive gave up the ghost.
My new Samsung drive needs a bit more of a shove to spring into life, hence the powered hub; Just how much juice it needs though, I'm afraid I don't know. The portable drive is the only thing attached to the hub that needs extra power.
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Mevi
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Re: Powered USB hub?

Post by Mevi »

That white screen appears when the hub is powered and the Joggler is NOT powered. 5v is coming back off the (usually cheapo) powered hub into the Joggler and lighting up the screen before even plugging in the Joggler. Powering on the Joggler after the powered hub does not seem to do any harm.

+1 for using decent shorter cables. Can make all the difference with USB HDDs.

Dan, does editing the boot.ini file to change the "disk(0)" to something else work? I can't remember if that was one of the things I tried. Just glad the Zipad is getting some use. :)
I've Got The Moves Like Joggler

Windows XP Professional SP3 plus Tablet PC for O2 Joggler
http://www.jogglerwiki.com/forum/viewto ... ?f=2&t=305

How to build your own Windows XP for the Joggler
http://www.jogglerwiki.com/wiki/WindowsXP
guidows
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Re: Powered USB hub?

Post by guidows »

gegs wrote:
hardz wrote:Have you tried one that does not produce the white screen?
I'm not sure what kind of powered hub you're using but I've got one of these http://bit.ly/yp3FKy and it works like a dream. You will notice that the connection to the Joggler needs a USB printer cable like this http://bit.ly/wdgVsT but the other connections use standard USB A ports. I'm pretty sure the power is only delivered to the USB A ports and not the USB B port leading to the Joggler. I've never seen the 'white screen' you mention.

I'm sure that I have this one (bought in DX) and it had the "white screen" problem when is powered.
Some one has a good recommendation for other hub with not this issue?
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pete
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Re: Powered USB hub?

Post by pete »

That was one of the hubs I initially utilized and I also had the "white screen" issue with it. Earlier today I tested a Digi 7 port USB 1.1 hub and it did not create the "white screen" issue. You can typically purchase these as refurbs for a good price here in the US ($50 or less). BUT its a USB 1.1 powered hub.

I just purchased a newer USB 2.0 "commercial" style for $50 and will give that one a try to see if it creates the "white screen" issue when I receive it next week.

I also read that you can just modify the cable removing the 5V power lead. I've not tried that though.
- Pete
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pete
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Re: Powered USB hub?

Post by pete »

Did a quick search and found:
Yes a powered USB hub can kill your mainboard by powering it through the USB ports. This is a problem with many cheap powered USB Hubs that apply the current on both ends of the USB and therefore send current upstream. It happened to me as well to kill my mainboard this way. I had noticed the fans were still spinning when the computer was shutdown.
http://forums.us.ncix.com/forums/topic.php?id=1502046
[Mike] picked up a cheap USB hub for four pounds (about $6) including delivery. He wanted to know how it’s possible to get quality electronics for that price, and as you may have guessed it’s not possible. He cracked open the power supply that shipped with the hub and hooked it up for some testing.
http://hackaday.com/2012/01/06/running- ... cheap-psu/
- Pete
O2 Jogglers running EFI Ubuntu / Squeezeplayer
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gegs
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Re: Powered USB hub?

Post by gegs »

Gulp!!! That hub looks just like mine.
I'm not experiencing the white screen - I wonder if that indicates the hub is OK. So far everything has been fine, but now I'm a bit worried about frying my Joggler and a Samsung portable drive.

I'll have a look around for a better quality hub. Can anybody recommend one?
gegs
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Re: Powered USB hub?

Post by gegs »

Does anybody know if it's easy to remove the +5V power pin from a USB type B connector?
If the hub only sent data to the Joggler it would solve the white screen problem, would it not?

The Wikipedia USB page http://en.wikipedia.org/wiki/Universal_Serial_Bus shows the pin configuration on USB connectors with '1' being the 5V power.
Image

I've suggested removing the pin from the 'B' connector because it has a wider aperture and is more accessible, but it could also be the 'A' connector or both.
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