Why is my USB hub suspended?

Will using a proper power supply for my hub re-enable this device? Also why are my two other usb memory dongles un-availble? I'm Running 10.6.2, I can use USB prober but might I need to upgrade to 10.6.7 or something similar to use this program properly...
Regards Jules

Have Just updated to Mac OS X 10 version 2 .6.5 (up 3 levels) Now my power module is whizzing away making some humming noise... I think I will have to get it fixed at an apple authorized service centre. A Whole buch 'a other stuff is disabled as well this may fix the problem.
Thx Jules
With this update you can do like track pad it seems. (might be the engineering update) Tip: I had to use safe mode to install the patch -could be third party system software interfering or could be the power core...

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Why do USB drives plugged into USB hubs make my Mac Book Pro (Retina late 2013) wake from sleep?

I have 2 x USB hubs, a Logitech USB 2.0 hub and a Broway USB 3.0 hub. Tested both and both seem to be the cause of my late 2013 Mac Book Pro waking from sleep. I ran syslog to find out why (syslog |grep -i "Wake reason") and the reason I got back was "kernel[0] <Notice>: Wake reason: XHC1" - this means nothing to me, but it didn't take too much mucking about to hunt the problem down and figure out it was the USB hub with any USB drive attached. If the drive is attached directly to the computer. No problem, computer sleeps fine.
This was a problem I encountered (and never solved) with OSX 10.6.8, a 2008 Macbook Pro the same Logitech USB 2.0 hub, but with different drives. I put the problem down to a bug that never got solved in an old system. But I am simply AMAZED after my update to a new MBP and new system that it is still about almost 6 years, a dozen MBP's and 4 systems later.
The other problem is that not only does the USB drive/ USB hub combo wake the computer it also loses the drive upon sleep and mounts it again upon wake. Then repeats this process every couple of minutes. And it obviously doesn't eject the drives properly because each time I return to the computer after I put it to sleep or let it go to sleep I get a giant list of "Disk Not Ejected Properly" notifications about it. Which I'm guessing could eventually cause some file damage.
I've tried combinations of different drives, different hubs (a Belkin and a no-name Chinese brand 2.0 hub) and the problem persists. Is there a solve to this problem? I'm surprised to see so little posts on forums about this. Am I just unlucky and got another combination of faulty/problematic hardware, or is this a real problem that exists for everyone? If not I would love to know if people have found winning combos of USB hubs and drives. But if it is, then it HAS to be solved.
If you have a Macbook Pro, then you are limited to 2 USB outlets, this is obviously a bare minimum and I would say that 95% of people using their laptop computer in the office or at home have a hub, and very likely a USB drive attached to it. I know actual Apple reps don't really pay much attention to the community support posts, but I've got 6 months worth of Applecare left and would like suggestions about how to get Apple's attention about this problem.
BTW Jettison (a 3rd party app that ejects drives properly before sleep) is not a solve. It is a 3rd party app that tries to fill a hole in a broken system. I don't want to eject my drive upon sleep, I want it to got the **** to sleep.

Is there a pattern to the time of day or other detail that may be
traced back to a OS X system cause of this odd phenomenon?
Are there any copies of system files on any of the attached USB
external drives? Any libraries, such as iTunes, iPhoto, etc?
Once the drives are indexed by Spotlight, are their permissions
ignored by the OS X? Content, if neutral, should not affect the
wake or sleep cycle; especially if they're ignored by the OS X.
Could there be a bad cable or other component? If so that would
be a difficult process of elimination to detect it. Usually replacing
most suspect components in the USB stream (external to Macs)
is a rote way to mechanically test that idea; & not 100% sure.
Does the equipment all have a good ground to the utility or house
electrical field? An intermittent ground may affect more than sleep.
Hard to say at this point. Maybe a late-night talk radio guru on
remote viewing could peer into your situation and sleuth it out?
Sorry to have run out of ideas, but the process must be electrical
& mechanical to some extent. - Or perhaps odd software inspired.
Do you have any phone-home spyware items inside, just jumping
at the chance to spill your information? Little Snitch may help.
PS: Perhaps the computer needs to go into Apple & have a genius
or product specialist at AASP test the unit thoroughly... BlueTooth?
see:
https://www.google.com/?gws_rd=ssl#q=Wake+reason:+XHC1
Good luck & happy computing!
edited 2x

Why does my 23 ACD go black when its USB-hub cord is connected to computer

When I connect the USB - hub cord of my 23 ACD to the back USB port of my G5 quad, the display instantly goes black (shuts of) and back on and to normal operation again, when USB is disconnected. Why is that ? When I start up the computer with the displays USB cord connected and display powered, it turns off when computer starts. Does anyone know
any reason for this or, better still, a fix to this problem ?
G5 quad Mac OS X (10.4.10) 23 ACD

I have this exact same problem. It is only a recent occurrence and my screen is just about 1 year old. When the USB cord from the ACD is plugged into the back of my Mini, the screen goes black. When the USB cord is removed, the screen powers on as normal. I do get the device removal warning when I remove the USB cord, but other than that, nothing. I've seen in a couple of other posts that this isn't an unusual problem and maybe it's not worth getting it fixed. Is this the consensus? I'm planning to get a USB hub anyway.

IMac 2012 OS's not loading while USB-Hub pugged in. Why?

So i have a problem. I have a new iMac 21,5. I plugged in my iMac through my Smart-UPS and It has an USB control. SO i turn to iMac USB-Hub with 3 USB and card reader in it and to this USB-Hub i have connect USB cable going from Smart-UPS.
When i turning on my iMac its stop loading and i see white screen which goes before screen with Apple logo. As soon as i remove USB cable USB-Hub from iMac its going loading good and then i connect USB-Hub again and it works well. Why it can happen?

ok just did it.
So right now all USB prots on iMac are busy.
- USB Wacom Wirless connection kit
- USB-Hub with cardreader
- UPS directly to iMac
- Wacom tablet.
Turn on iMac and system starting and loading quick
SO looks like trouble was that i had connect UPS through the USB-Hub? Why it could be? Just early when i have this connection of UPS through USB-Hub i notfied that in task bar(or how it called on iMac where clock, menu at the top) there are icon with power pluged to UPS showinig percentage of battery loaded. And sometime its appear and then disappear and jumping here and there. Now when it connected directly i see this icons always appeared.
So it looks like it lost connection sometime and this USB-Hub only for turning usb flash, some low power stuff and memry sticks only?

Why does my ipod not charge with usb hub in wall outlet?

why does my ipod charge on my computer
not charge with usb hub in wall outlet?

Because the hub is not compatible with the iPod.
Just use your computer or purchase a wall charger.

Why can't I download pictures from camera through a usb hub

Hi Folks,
I am trying to download pictures to Lightroom 4 in MacBook Pro and it will work fine if the download is directly from the camera to the MacBook via a USB cable from camera to computer. However, when I use a USB hub from the camera to hub via USB cable (and then hub to computer), the computer (and Lightroom) does not appear to recognize that there is a source for picture downloads. Anyone experience similar issues and any solutions (other than continue to use a USB cable between camera and computer directly)? Thanks much in advance for any thoughts.
Dave
Fort Collins, CO

Yes, it is self powered. Belkin F5U307. Searching beforehand revealed there is compatability between this hub and MBP. Also, it is a 7 port hub, I have two other hubs (not active simultaneously when downloading pics), that are used to connect to iPhone and iPad, and they work fine for all purposes. I have also tried all of the other hub ports that are not tied up, and they also do not work when it comes to downloading pics from the camera (Canon 5D Mark 2).
Thanks for your help,
Dave

USB hub does not work! Help

I was attempting to install a KVM switch for my G4 and G5 that required me attaching my keyboard and mouse to the usb port on the back of the monitor.
The USB hub does not work! Monitor cable has no bent pins, and works perfectly for video with all my Mac's, G4's, G5's. The problem is I have had this monitor awhile and never tried these ports so apple won't help.
Anyone have any suggestions why these ports don't work and if there is a fix?
Can any one recommend a KVM switch that supports ADC, and USB so I bypass this hub.
Thanks

Some USB 2.0 hardware works very well w/USB 3.0 & some don't. Suggest that you contact the sound card manufacturer & ask them. Perhaps they can recommend a work-a-round.
Another user posted about the same problem some weeks ago regarding a sound card.

DELL 2713 USB hub Issue on MacBook Pro Retina 15

Hello,
I have a new MacBook pro retina 15" and Dell 2713 monitor.
the Dell works fine with the MacBook with supplied DP cable.
BUT the USB hub doesn't work, the monitor is connected to the computer with original dell usb 3.0 cable.
Note: on PC & win7, it works fine
How can I find a proper drivers for this built-in USB 3.0 hub.
thanks,
Tomer

The Retina models are full of flaws. You have found one of them. For some reason the discrete graphic card is being shut off in Windows and you are now using the built in Intel HD Graphics 4000. Why I have no idea.

IPOD SHUFFLE PLUGGED INTO USB HUB BUT NOT BEING READ

I recently got a 4 port USB hub because I needed extra usb ports. I mainly use the hub to connect my flash drive, external hard drive and my IPOD shuffle, but the only thing that isn't getting read by the computer is the shuffle. Everything else that is conncected to the hub is being read by windows. The shuffle just sits there, when plugged into the hub, blinking a green light (which doesn't look normal). The hub itself is a 2.0 hub. HELP!

I had the same problem. FIRST, I had to remove the software that came with the original ipod shuffle. 2005/06/26, and replace it with the older version 2005/01/11 that I found on this site: http://www.opendrivers.com/driver/220012/apple-ipod-ipod-mini-ipod-photo-ipod-sh uffle-software-updater-2005-01-11-windows-2000-xp-free-download.html
Once in a while it still doesn't recognize the ipod, but I think that's a usb port problem. Unplug it and plug it in again and it should be fine. Just make sure you remove the original software first in the add/remove programs section!
Also, if Mac is so good (according to some people on this site), why did Mac start using the Windows XP software and not vice-versa!!! haha
Good Luck!!!
pentium IV 2.3 Windows XP

USB hubs quit working with 10.7.2

I have a Mac Pro, dual quad-core 2.8GHz Xeon, 10GB ram. Three D-link DUB-H7 usb hubs. After the update to 10.7.2 and iTunes 5.0.1 (not sure exaclty when), my usb devices & hubs quit working properly. For a while they would work occasionally.
I have a USB keyboard which works if it's plugged in directly when the computer boots. But other devices (external drives, flash card reader, iPod dock, USB display) don't work at all. I tested the hubs with another Lion system, and they work on that. iTunes wireless sync quit as well.
I've tried resetting PRAM and SMC. Neither fixed the problem. Tried repairing permissions. No change. Rebooting (many times).
Could it be a USB driver conflict? I removed VirtualBox usb drivers, as well as Parallels, but not vmware, which I also own.
When I plug in a device, I get 'trouble enumerating' and then "The IOUSBFamily was not able to enumerate a device." in the system.log
Any ideas? Is my motherboard dying? If so, why does the keyboard still work, and nothing else?

Followup info. I reset the PRAM and booted into 10.5.1, on another drive.
This time, similar behavior; HID devices (keyboard, mouse, bluetooth) work fine. Hubs (which work fine on another Lion computer!) generate a bunch of console errors:
11/19/11 11:21:31 AM kernel USBF: 746.706 USB Device IOUSBHubDevice is violating Section 9.3.5 of the USB Specification -- Error in GetConfigDescriptor( wLength = 4)
11/19/11 11:21:31 AM kernel USBF: 746.707 AppleUSBHub[0xf536000]::ConfigureHub No config descriptor
11/19/11 11:21:31 AM kernel USBF: 746.707 AppleUSBHub[0xf536000]::start Aborting startup: error 0xe0004056
11/19/11 11:21:31 AM kernel USBF: 746.707 IOUSBHubPolicyMaker[0xf536000]::start - ConfigureHubDriver returned false

Time capsule won't recognise external hard drive, even when formatted correctly and connected to a powered USB hub

Hey
i have an apple time capsule (not the very latest one, but the one before that) and i am trying to connect my 1.5TB toshiba hard drive to it. i understand that it needs to be powered, so i purchased a usb hub ("usb hub man" by Gadget Geek) and bought an adapter to power it.
The hard drive won't show up in finder or disk utility, however i can see it in airport utility.
it is formatted correctly - Mac OS Extended (Journaled, Encrypted) and works perfectly fine from my macbook pro usb port.
Also, when i connect a smaller hard drive to the hub (16GB) that shows up in finder as normal.
so it seems that everything is perfectly fine, however this 1.5TB hard drive just wont show up in finder.
Does anyone have any suggestions as to why this is the case? my guesses are that i need to get a better quality usb hub, or that i might have to get a powered hard drive altogether rather than trying to power it with the hub.
Thanks

The hard drive won't show up in finder or disk utility, however i can see it in airport utility.
You would not expect it to show up in disk utility .. it does not work on network drives.
Finder may or may not be able to see it.
If the airport utility is showing the drive you have some possibility.
Did you GUID partition the drive .. or is it still MBR.. ie if it was originally formatted for PC it will be MBR and won't work.. so put it on the Mac again and change the GUID partition.. I would also set a smaller partition size.. the internal drive of the TC is partitioned though you cannot see them.. put a first partition less than 1TB and see how it goes.
In finder.. don't forget ML has issues with network drive.. make sure you tick all the extras in finder preferences.. and if the drive won't mount try to do it manually.. go .. connect to server.
AFP://TCname or TCIPaddress.. where you use the actual name or IP.
Also is the power supply for the hub at least 2A preferably more.. so the hub is powered but the disk is not powered??

I need a good USB hub

I have several USB devices I have to switch between when using my macbook. It is my only computer, until I get a iMac in the future. I have a wired mouse, an external hard drive, printer, and plan on getting another external hard drive. Plus I have devices I use occasionally like updating my car GPS, using flash drives, and iPods. My biggest concern is the speed of data access if I have more than one external drive hooked up to a USB hub; would this raise any issues? And are USB hubs all the same, or are some of higher quality than others? I'd like one that has the ports separated far enough as some devices have bulky USB cable ends. Thanks for any advice.

I'd like to know this info as well as I am also looking for a hub for the same reason. I am also concerned about data flow and such.
I bought one of these:
http://www.dealextreme.com/details.dx/sku.2540
And it is terrible. I would get those "Please eject before disconcerting" messages (it was randomly dropping connections) and one time, even got a KERNEL PANIC just because I was using 5 out of the 7 ports at the same time, and apparently that was too much for it!
I think the best hubs are ones from real brand names like Belkin or Kensington. Only problem is the price and that is why I don't have one yet.

Do i need a powered usb hub to connect my external hard drive and printer to my airport extreeme

I tried a usb hub from Belkin that is not powered. Is this why I cannot get my hard drive to work on my Airport Extreme?

I am assuming that you are using the newer "square" version of the AirPort Extreme, not the older "round" version.
The USB port on the AirPort Extreme is under powered. I have had to use a powered USB hub with any type of hard drive that I've ever used on the Extreme, even if the drive had its own power supply.
You might want to also check to make sure that the drive is formatted in Mac OS Extended (Journaled) or MS-DOS FAT32. The normal Windows format of NTFS will not work at the AirPort Extreme.

External Hard Drive and USB Hubs

I need some help. I have a 320GB External Hard Drive which uses 2 USB Ports. I also have an external keyboard and mouse, using USB. I first purchased a 'passive' USB hub and the Mac was unable to recognize the External Hard Drive. So, I purchased a USB Hub powered by AC. The External Hard Drive lights up, but the Computer does not recognize it. Is there a recommended USB Hub that will allow the external hard drive to make the hand shake with my MacBook ?

Check with the drive manufacturer to determine if there is an alternative power source for the drive. I've never liked self powered drives and that so many made today require two USB ports is just one of the reasons why.

USB-Hub not working on LEFT USB port?

Hello,
I have installed Windows 7 Ultimate 64 Bit on my MacBook Pro 13" Retina (Early 2013) and it's running fine. Boot Camp version: 5.0.5033.
But I have one problem: I bought an external monitor (Dell U2414H) which has an built-in 4-Port USB 3.0 hub. So I connect the Dell monitor using a DisplayPort 1.2a cable and an USB 3.0 cable. But Windows only recognizes the monitor's built-in USB hub when I plug the USB cable into the right USB port (when I sit in front of the MacBook). Then it works without problems. But when I plug the USB cable into the left USB port of the MacBook Windows only says "USB device not recognized". But other devices like USB sticks and USB drives also work without problems on left and right USB port of the MacBook. Also when I boot in OS 10.9 Mavericks the monitor's USB hub is working on both USB ports of the MacBook. So I think it isn't a hardware failure. I also re-installed Windows, but I have still the same problem.
Do you have any idea, why only the monitor's built-in USB hub is not working in Windows on the left port of the MBP or even how I could fix it?
Is Boot Camp 5.0.5033 the most current version? I checked the box to download the latest Windows support software and also didn't find anything newer than 5.0.5033 to download, but sometimes I read about 5.1.1 - but where could I download it? AND: Doest it help?
Thanks in advance!

I think I've hit a variation on the problem you're enoucntering. I have a late-2013 13-inch Macbook Pro Retina. I've just installed Boot Camp and a copy of Windows 7 Pro. This is my first experience with Boot Camp and Windows on a Mac, so I'm in foreign teritory.
The install all went fine and Windows 7 booted up fine and so far, all hardware seems to be working as expected, with one exception. Things went sideways when I tried use it in "clamshell" mode - lid closed with external monitors and all my peripherals attached to a USB hub. I set up Boot Camp to boot into Windows and attempted to boot. It would give me the usual boot-up fanfair and a then a gray screen for a few seconds, and then it would reboot. It just rebooted over and over. I eventually discovered the issue was the USB hub - without the hub connected , it would boot just fine. Once it was booted into Windows, I could attach the the hub and everything would be recognized normally. Furthermore, I could put the system in sleep mode, wake it up and everything would be working fine. But it simply refuses to boot the USB hub attached. I've stumbled on a couple related threads - see https://discussions.apple.com/message/23802231#23802231. The suggestion is that only certain hubs to not work. I've got two different high quality powered hubs and both display the same behaviour. The other point is, that when booting into OS X with the same hub, it works perfectly. So it's a strange problem.
Note that after reading your post, I did try the hub in both right and left USB ports and that made no difference in my case. I do have one more hub to try (built into my Dell monitor). I'll report back if that happens to work.

Why is my USB hub suspended?

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