[Bugme-new] [Bug 11456] New: USB freeze with SB600 chipset

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Sat Aug 30 00:37:18 PDT 2008


http://bugzilla.kernel.org/show_bug.cgi?id=11456

           Summary: USB freeze with SB600 chipset
           Product: Drivers
           Version: 2.5
     KernelVersion: 2.6.27 (ubuntu 2.6.27-2-generic)
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
        AssignedTo: greg at kroah.com
        ReportedBy: hadmut at danisch.de


Latest working kernel version: none
Earliest failing kernel version:
Distribution: Ubuntu

Hi, I recently bought a small Acer Desktop PC with AMD x2 CPU and SB600
Southbridge. Hardware seems to be OK, it came with Windows Vista and worked
properly. 

I then installed Ubuntu 8.04 with a 2.6.24 kernel and ran into severe problems
with the USB port: I could mount USB sticks but they became unavailable as soon
as I wanted to access data. Mouse and Keyboard that were connected through USB
hubs freezed within about 2 Minutes after system boot. 

I then tried the 2.6.26 and 2.6.27 kernels from the upcoming Ubuntu 8.10
release and the problems with the USB storage seem to be gone, I could read
data from a USB stick without problems. 

However, I still can't use mouse and keyboard when connected through a USB hub
for more than a few seconds, and in general the USB part does not seem to be
stable. 

Unfortunately, there's no error message in dmesg or kernel logs. 

regards
Hadmut


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