Public bug reported:
Aten CM0264 KVM misbehaves with Ubuntu: it is apparently misdetected as
CD-ROM, causing long delays and all kinds of strange errors, making the
KVM all but unusable. (Disconnecting USB cable from it temporarily
during boot acts as a workaround, albeit a very inconvenient one.)
This happens with 64-bit 10.04 and 12.04 at least (others not tested).
lsusb -v output below. Note in particular 0557:1808 is detected as "mass
storage".
Bus 002 Device 010: ID 0557:8021 ATEN International Co., Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 8
idVendor 0x0557 ATEN International Co., Ltd
idProduct 0x8021
bcdDevice 1.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 4
wHubCharacteristic 0x0009
Per-port power switching
Per-port overcurrent protection
bPwrOn2PwrGood 50 * 2 milli seconds
bHubContrCurrent 100 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0x1e
Hub Port Status:
Port 1: 0000.0303 lowspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 002 Device 011: ID 0557:1808 ATEN International Co., Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0557 ATEN International Co., Ltd
idProduct 0x1808
bcdDevice 3.10
iManufacturer 1 ATEN
iProduct 2 USB-VNC
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 82
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
(Missing must-be-set bit!)
Self Powered
MaxPower 32mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 2 USB-VNC
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
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 3 Kb
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 3 Canadian-Bilingual
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 65
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 4 Ms
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 3 Canadian-Bilingual
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 51
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0005 1x 5 bytes
bInterval 4
Device Status: 0x0002
(Bus Powered)
Remote Wakeup Enabled
Bus 002 Device 012: ID 0557:2213 ATEN International Co., Ltd CS682 2-Port USB
2.0 DVI KVM Switch
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0557 ATEN International Co., Ltd
idProduct 0x2213 CS682 2-Port USB 2.0 DVI KVM Switch
bcdDevice 1.00
iManufacturer 1 ATEN
iProduct 2 CM0264 V1.0.097
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 4 Kb
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 65
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 52
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 5
Device Status: 0x0002
(Bus Powered)
Remote Wakeup Enabled
Here's a sample from dmesg:
[ 227.479060] usb 1-1.5: new high speed USB device using ehci_hcd and address
[ 227.589410] usb 1-1.5: configuration #1 chosen from 1 choice
[ 227.590036] hub 1-1.5:1.0: 4 ports detected
[ 227.869096] usb 1-1.5.1: new full speed USB device using ehci_hcd and
address
[ 227.980093] usb 1-1.5.1: configuration #1 chosen from 1 choice
[ 227.980368] hub 1-1.5.1:1.0: USB hub foun
[ 227.980550] hub 1-1.5.1:1.0: 4 ports detecte
[ 228.059115] usb 1-1.5.2: new high speed USB device using ehci_hcd and
address
[ 228.190704] usb 1-1.5.2: configuration #1 chosen from 1 choice
[ 228.192398] input: ATEN USB-VNC as
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5.2/1-1.5.2:1.1/input/input5
[ 228.192524] generic-usb 0003:0557:1808.0002: input,hidraw1: USB HID v1.10
Keyboard [ATEN USB-VNC] on usb-0000:00:1a.0-1.5.2/input1
[ 228.195121] input: ATEN USB-VNC as
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5.2/1-1.5.2:1.2/input/input6
[ 228.195302] generic-usb 0003:0557:1808.0003: input,hidraw2: USB HID v1.10
Mouse [ATEN USB-VNC] on usb-0000:00:1a.0-1.5.2/input2
[ 228.205638] Initializing USB Mass Storage driver...
[ 228.205812] scsi7 : SCSI emulation for USB Mass Storage devices
[ 228.205969] usb-storage: device found at
[ 228.205974] usb-storage: waiting for device to settle before scanning
[ 228.206008] usbcore: registered new interface driver usb-storage
[ 228.206013] USB Mass Storage support registered.
[ 228.289137] usb 1-1.5.1.1: new low speed USB device using ehci_hcd and
address 8
[ 228.433270] usb 1-1.5.1.1: configuration #1 chosen from 1 choice
[ 228.447450] input: ATEN CM0264 V1.0.097 as
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5.1/1-1.5.1.1/1-1.5.1.1:1.0/input/input7
[ 228.447626] generic-usb 0003:0557:2213.0004: input,hidraw3: USB HID v1.00
Keyboard [ATEN CM0264 V1.0.097] on usb-0000:00:1a.0-1.5.1.1/input0
[ 228.461458] input: ATEN CM0264 V1.0.097 as
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5.1/1-1.5.1.1/1-1.5.1.1:1.1/input/input8
[ 228.461631] generic-usb 0003:0557:2213.0005: input,hidraw4: USB HID v1.00
Mouse [ATEN CM0264 V1.0.097] on usb-0000:00:1a.0-1.5.1.1/input1
[ 233.199920] usb-storage: device scan complet
[ 233.200623] scsi 7:0:0:0: CD-ROM ATEN Mass Storage 0001
PQ: 0 ANSI: 0
[ 233.202871] sr0: scsi3-mmc drive: 0x/40x cd/rw xa/form2 cdda tray
[ 233.202878] Uniform CD-ROM driver Revision: 3.20
[ 233.203060] sr 7:0:0:0: Attached scsi CD-ROM sr0
[ 233.203232] sr 7:0:0:0: Attached scsi generic sg6 type 5
[ 233.289754] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 233.489774] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 233.689792] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 233.889825] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 234.089825] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 234.289850] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 234.489877] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 234.689890] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 265.223500] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 296.237135] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 327.230904] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 358.234583] usb 1-1.5.2: reset high speed USB device using ehci_hcd and
address 7
[ 358.366069] sr 7:0:0:0: [sr0] Unhandled error code
[ 358.366073] sr 7:0:0:0: [sr0] Result: hostbyte=DID_ABORT driverbyte=DRIVER_
[ 358.366078] sr 7:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02 0
[ 358.366088] end_request: I/O error, dev sr0, sector 0
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1010600
Title:
Aten CM0264 KVM misdetected as CD-ROM
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1010600/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
