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Hardware and Windows Vista Hardware issues in relation to Windows Vista. (microsoft.public.windows.vista.hardware_devices) |
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USB-hub
Does anybody know the two port USB hub from Mobile Computing?
I've had two BSOD's which I think may have been caused by this hub, but I'm not entirely sure. Are there any Vista drivers I can download for it? It's currently recognized as 'generic USB hub', and uses the usbhub.sys driver. Charlie42 |
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USB-hub
"Charlie42" wrote in message
... Does anybody know the two port USB hub from Mobile Computing? I've had two BSOD's which I think may have been caused by this hub, but I'm not entirely sure. Are there any Vista drivers I can download for it? It's currently recognized as 'generic USB hub', and uses the usbhub.sys driver. Charlie42 If there are any specific drivers (doubtful), they would be available from the manufacturer. As a quick Google doesn't pop up a company with that name, you'll have to use the full/actual name for your search. |
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USB-hub
"PvdG42" wrote in message ... If there are any specific drivers (doubtful), they would be available from the manufacturer. As a quick Google doesn't pop up a company with that name, you'll have to use the full/actual name for your search. I've tried that, without any results. But thanx for replying anyway. Charlie42 |
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USB-hub
Charlie42 wrote:
Does anybody know the two port USB hub from Mobile Computing? I've had two BSOD's which I think may have been caused by this hub, but I'm not entirely sure. Are there any Vista drivers I can download for it? It's currently recognized as 'generic USB hub', and uses the usbhub.sys driver. Charlie42 Most hubs will use the "Generic USB Hub" driver, since they rarely have extra features which would require a more specific driver. What makes you think it is the hub causing the problem? Could it be one of the devices connected to the hub? Or possibly a conflict between two of the devices, which can only be plugged in at the same time when you are using the hub? If the BSODs only happen occasionally, after an unpredictable time (which is often the case!), it can be difficult to work out what is causing the problem. If you're lucky and they do happen fairly regularly (eg. almost certain to happen within half an hour), you could try plugging in the hub and nothing else, work (or wait) an hour (twice the time you'd expect to get a BSOD) and see if you get one, then plug in one device, wait an hour, plug in another, etc. When you do get a BSOD, try the last device you plugged in on its own, then that device in combination with each of the other devices. It might take a while, but would help track down which device, or combination of devices, causes the problem. If there's a long unpredictable time between BSODs, it may not be practical to do this, though. |
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USB-hub
"Mark Bourne" wrote in message
... ... What makes you think it is the hub causing the problem? Could it be one of the devices connected to the hub? Or possibly a conflict between two of the devices, which can only be plugged in at the same time when you are using the hub? Possibly a conflict between the hub and an optical mouse (A4 Tech). This error happens when I restart Vista from sleep. The hub and mouse are constantly connected. Some time after restarting, the mouse stops working (won't reconnect either), and the computer crashes within 30 minutes. But I have had restarts from sleep where this hasn't happened, that's why I'm not 100% sure what causes the BSOD's. ... If you're lucky and they do happen fairly regularly (eg. almost certain to happen within half an hour), you could try plugging in the hub and nothing else, work (or wait) an hour (twice the time you'd expect to get a BSOD) and see if you get one, then plug in one device, wait an hour, plug in another, etc. I will give this a try. Thanks for your advice. Charlie42 |
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USB-hub
"Mark Bourne" wrote in message
... ... If you're lucky and they do happen fairly regularly (eg. almost certain to happen within half an hour), you could try plugging in the hub and nothing else, work (or wait) an hour (twice the time you'd expect to get a BSOD) and see if you get one, then plug in one device, wait an hour, plug in another, etc. I will give this a try. Thanks for your advice. Charlie42 I did the testing, and it turned out it wasn't a conflict with the mouse after all. It was the hub itself who stalled. Guess I just have to remember to plug it out before I put Vista to sleep from now on. Thanks for your help, Mark. Charlie42 |
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USB-hub
Charlie42 wrote:
"Mark Bourne" wrote in message ... ... If you're lucky and they do happen fairly regularly (eg. almost certain to happen within half an hour), you could try plugging in the hub and nothing else, work (or wait) an hour (twice the time you'd expect to get a BSOD) and see if you get one, then plug in one device, wait an hour, plug in another, etc. I will give this a try. Thanks for your advice. Charlie42 I did the testing, and it turned out it wasn't a conflict with the mouse after all. It was the hub itself who stalled. Guess I just have to remember to plug it out before I put Vista to sleep from now on. Thanks for your help, Mark. Charlie42 No problem. And thanks posting back to say you found the problem. When the hub doesn't come back on properly after waking from sleep, you could try unplugging the hub from the computer and plugging it back in again. If the hub has a separate power supply, also turn that off and back on while the hub is unplugged, to ensure the hub is reset. That might avoid the blue screen half an hour later. I've noticed that my hub (D-Link DUB-H7 7 port hub) sometimes doesn't come back on properly after waking the laptop, and resetting the hub sorts it. I've not noticed it causing a BSOD, but maybe it would later if I didn't reset it. Mark. |
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USB-hub
"Mark Bourne" wrote in message
... When the hub doesn't come back on properly after waking from sleep, you could try unplugging the hub from the computer and plugging it back in again. If the hub has a separate power supply, also turn that off and back on while the hub is unplugged, to ensure the hub is reset. That might avoid the blue screen half an hour later. In the case of the Mobile Computing hub, it doesn't help. When it's dead, it's dead. Unplugging/plugging it is useless, it won't reconnect. Charlie42 |
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USB-hub
Charlie42 wrote:
"Mark Bourne" wrote in message ... When the hub doesn't come back on properly after waking from sleep, you could try unplugging the hub from the computer and plugging it back in again. If the hub has a separate power supply, also turn that off and back on while the hub is unplugged, to ensure the hub is reset. That might avoid the blue screen half an hour later. In the case of the Mobile Computing hub, it doesn't help. When it's dead, it's dead. Unplugging/plugging it is useless, it won't reconnect. Charlie42 That's probably not the same problem as I occasionally have then. Getting a new hub might help, possibly a different make or model in case there's a general problem with your current model working with Vista. You might want to borrow one to try before buying one though, in case it doesn't solve the problem. Mark. |
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USB-hub
There is an option in the Power Profile advanced settings to allow or
disallow selective power down for usb devices. I think the default is not to allow it, but you might check. Hubs are tricky and mostly for low priority devices or temporary gadgets like flash drives or head phones. A better solution is a PCI card with USB outlets on it. They are quite cheap, and avoid the hub problems. Good luck "Charlie42" wrote in message news "Mark Bourne" wrote in message ... ... If you're lucky and they do happen fairly regularly (eg. almost certain to happen within half an hour), you could try plugging in the hub and nothing else, work (or wait) an hour (twice the time you'd expect to get a BSOD) and see if you get one, then plug in one device, wait an hour, plug in another, etc. I will give this a try. Thanks for your advice. Charlie42 I did the testing, and it turned out it wasn't a conflict with the mouse after all. It was the hub itself who stalled. Guess I just have to remember to plug it out before I put Vista to sleep from now on. Thanks for your help, Mark. Charlie42 |