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Ticket Resolution Summary Owner Reporter
#16938 fixed since 5.1.24 not just one PulseAudio sink gets created but 10 pentagonik Bard0
Description

i am running debian, but same happens (at least) on Arch as well. For linux VM's (with Audio being ICH AC97), there are too many sinks created on the host. I am currently working around this by using Intel Audio instead.

The host has too many audio controls (sliders) and after just 2 VM's (which use up 20 of them) i can no longer control host applications volume in the mixer.

#10432 fixed Win8 installation preview crash Barkie1632
Description

Tried to create a vm for Window2008 customer preview. Got fatal error stating I need to recycle power button. See log file.

#2973 obsolete USB extremely slow with USB-2.0 (very similar to #464) Klaus Wendel
Description

Accessing a Canon Scanner CanoScan 9950F with USB-2.0 activated is still very slow. The transfer rate is similar to USB-1.
Disabling virtual USB-2.0 controller results in a faster(!) access, but transfer rate is furthermore very slow.

Version: VirtualBox 2.1.0
Host OS: Linux Ubuntu intrepid 8.10, Kernel 2.6.27-11-generic
Guest OS: Windows XP Home Edition, updated to SP3

Have a look at the attached vbox.log

Extract of dmesg - part 1: connecting scanner

[ 6728.248042] usb 2-6: new high speed USB device using ehci_hcd and address 10
[ 6728.384368] usb 2-6: configuration #1 chosen from 1 choice

Extract of dmesg - part 2: starting Guest OS with VirtualBox

[ 6763.708027] usb 2-6: reset high speed USB device using ehci_hcd and address 10

Extract of USB-Hardware at host (lsusb -v):

Bus 002 Device 008: ID 04a9:2219 Canon, Inc. CanoScan 9950F
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0        64
  idVendor           0x04a9 Canon, Inc.
  idProduct          0x2219 CanoScan 9950F
  bcdDevice            3.01
  iManufacturer           1 Canon
  iProduct                2 Scanner
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           39
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower               10mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0001  1x 1 bytes
        bInterval               8
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0001
  Self Powered
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