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#1
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usb freezes laptop?
whatever is plugged in any of the usb ports freezes the system (even
a mobile phone ) It also get frozen during boot if you leave the usb device plugged only time it does not happen is when you disable ehci controller in device manager but then you get 'usb device not recognized' when you plug in;hub and controller look fine in device manager and there is 5 volts on usb connector does this sound like dead usb part of southbridge motherboard ,chip or that its pins need to be resoldered? |
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#2
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usb freezes laptop?
KORISNIK wrote:
whatever is plugged in any of the usb ports freezes the system (even a mobile phone ) It also get frozen during boot if you leave the usb device plugged only time it does not happen is when you disable ehci controller in device manager but then you get 'usb device not recognized' when you plug in;hub and controller look fine in device manager and there is 5 volts on usb connector does this sound like dead usb part of southbridge motherboard ,chip or that its pins need to be resoldered? SOunds like software issues to me. Jamie |
#3
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usb freezes laptop?
KORISNIK wrote:
whatever is plugged in any of the usb ports freezes the system (even a mobile phone ) It also get frozen during boot if you leave the usb device plugged only time it does not happen is when you disable ehci controller in device manager but then you get 'usb device not recognized' when you plug in;hub and controller look fine in device manager and there is 5 volts on usb connector does this sound like dead usb part of southbridge motherboard ,chip or that its pins need to be resoldered? For a test: 1) Download a Linux LiveCD. A copy of Ubuntu will do, perhaps version 10.10 would be a good choice. 2) Burn the ISO9660 file to a CD, using Imgburn, Nero, K3B, Brasero or other tool that knows how to convert an ISO9660 file into a boot CD. You don't just "drop the file onto the disk" - it is not a straight copy operation with the file. It has to be converted by the burning program. 3) Boot the computer using the finished CD. Do *not* install Linux. Click the button that says you want to "try" it first. That option, will not install any software on the computer. 4) Now, you should have a Linux Desktop on the screen. 5) Connect a USB flash stick to the USB port. Did the partition on the USB flash device mount on the desktop ? 6) Now, try to copy the files on the USB flash stick, to a hard drive partition. Did that work ? Did the copy freeze up ? If any of the tests in (5) or (6) freeze, then you know there is some kind of hardware problem. And chances are, no BIOS setting can fix it. If the test is failing, you can try executing the "dmesg" command and look for interesting log messages about the USB port. Shut down the Linux session, using the shut down menu in the upper right. By doing a proper shutdown, and not just powering off the computer, it will prevent corrupting the mounted partitions. Linux should unmount the test partitions you've been using in the test. Or, if you know how, you can unmount them yourself, before doing a shutdown. The purpose of doing this test, is to identify whether the issues are caused solely by the Windows OS or not. HTH, Paul |
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