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redgsturbo
Apprentice
Joined: 24 Jun 2005
Posts: 283
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 Posted: Thu Feb 12, 2009 10:53 pm Post subject: USB mouse randomly dies |
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Strangely, to fix it I simply | Code: | modprobe -r uhci_hcd && modprobe uhci_hcd
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The odd thing is I see the same behaviour in windows which makes me think hardware, but the simple module reload makes me second guess that. Any thoughts? |
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krinn
Watchman
Joined: 02 May 2003
Posts: 7470
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| Posted: Thu Feb 12, 2009 11:28 pm Post subject: |
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not enough energy?
USB2 controllers can provide upto 200mA energy to device
but controllers run multi-usb ports that will share these 200mA.
So if you plug a mouse that eat 200mA in an usb port and anything that need energy on the other port of that controller, then one of the device will not have enought energy and will not work.
After that you can guess, simply plug in that mouse will draw the power for itself and after sometimes if "by magic" the other device need to wakeup, the mouse "still by magic" will get off because some power just gone to the other device leaving the mouse bellow its 200mA...
But that's theory, you must have a mouse that eat 200mA, witch seems impossible.
Who the fuck could eat 200mA just to make a mouse work ?
Oh wait, what the 
| Code: | Bus 005 Device 001: ID 1d6b:0001
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b
idProduct 0x0001
bcdDevice 2.06
iManufacturer 3 Linux 2.6.27-gentoo-r3 uhci_hcd
iProduct 2 UHCI Host Controller
iSerial 1 0000:00:1d.0
bNumConfigurations 1
Configuration Descriptor:
Bus 005 Device 006: ID 1532:0009
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1532
idProduct 0x0009
bcdDevice 21.00
iManufacturer 1 Tempest
iProduct 2 Habu Mouse
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 200mA
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must be the light blue color that need all that power, or perhaps just a crappy mouse, that could also explain why it's my 3rd mouse in 6 months (my vendor start hate me)
That might not be your case, so might not help you, but at least, i feel better complaining at it... |
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pappy_mcfae
Watchman
Joined: 27 Dec 2007
Posts: 5999
Location: Pomona, California.
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| Posted: Fri Feb 13, 2009 6:44 am Post subject: |
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So, if you compile your USB support into the kernel instead of as a module, does the mouse act up?
Blessed be!
Pappy
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Kernel & Hardware
