USB C hub power delivery & video not working |
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Issue descriptionChrome Version: 71.0.3578.21 (Official Build) dev (64-bit) Chrome OS Version: 11151.11.0 (Official Build) dev-channel eve Chrome OS Platform: Pixelbook eve Network info: - Please specify Cr-* of the system to which this bug/feature applies (add the label below). SUMMARY: My USB C hub worked in 71.0.3578.8, and is broken in 71.0.3578.21. Several builds ago (M67 or so) it worked, and has been unavailable since. When working, this hub delivers video and power. In the broken state, it sometimes isn't detected at all, and the other time, it just delivers partial functionality (links my keyboard/mouse and provides audio out.) Steps To Reproduce: (1) connect CalDigit USB-C Dock to Pixelbook (2) (3) Expected Result: 4K video out via hub's displayport, power delivery Actual Result: No power or video out How frequently does this problem reproduce? (Always, sometimes, hard to reproduce?) Always What is the impact to the user, and is there a workaround? If so, what is it? Using an alternate hub Please provide any additional information below. Attach a screen shot or log if possible. Relevant details from dmesg: [ 7387.869396] usb 1-1: new high-speed USB device number 12 using xhci_hcd [ 7388.034379] usb 1-1: New USB device found, idVendor=2188, idProduct=3310, bcdDevice=50.00 [ 7388.034391] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 7388.034398] usb 1-1: Product: USB-C Dock Hub1 [ 7388.034403] usb 1-1: Manufacturer: CalDigit [ 7388.034408] usb 1-1: SerialNumber: CAD161000001 [ 7388.036584] hub 1-1:1.0: USB hub found [ 7388.036967] hub 1-1:1.0: 4 ports detected [ 7388.299397] usb 1-1.1: new high-speed USB device number 13 using xhci_hcd [ 7388.372740] usb 1-1.1: New USB device found, idVendor=2188, idProduct=3312, bcdDevice=50.00 [ 7388.372745] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 7388.372747] usb 1-1.1: Product: USB-C Dock Hub2 [ 7388.372749] usb 1-1.1: Manufacturer: CalDigit [ 7388.372751] usb 1-1.1: SerialNumber: CAD161000001 [ 7388.373350] hub 1-1.1:1.0: USB hub found [ 7388.373535] hub 1-1.1:1.0: 4 ports detected [ 7388.436309] usb 1-1.2: new full-speed USB device number 14 using xhci_hcd [ 7388.512889] usb 1-1.2: New USB device found, idVendor=046d, idProduct=c52b, bcdDevice=24.01 [ 7388.512894] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 7388.512897] usb 1-1.2: Product: USB Receiver [ 7388.512900] usb 1-1.2: Manufacturer: Logitech [ 7388.535784] logitech-djreceiver 0003:046D:C52B.0009: hiddev0,hidraw4: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:14.0-1.2/input2 [ 7388.636448] usb 1-1.1.2: new full-speed USB device number 15 using xhci_hcd [ 7388.646784] input: Logitech M705 as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.2/0003:046D:C52B.0009/0003:046D:101B.000A/input/input14 [ 7388.647020] logitech-hidpp-device 0003:046D:101B.000A: input,hidraw5: USB HID v1.11 Mouse [Logitech M705] on usb-0000:00:14.0-1.2:1 [ 7388.650946] input: Logitech K750 as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.2/0003:046D:C52B.0009/0003:046D:400F.000B/input/input15 [ 7388.651444] logitech-hidpp-device 0003:046D:400F.000B: input,hidraw6: USB HID v1.11 Keyboard [Logitech K750] on usb-0000:00:14.0-1.2:2 [ 7388.712194] usb 1-1.1.2: New USB device found, idVendor=08bb, idProduct=2912, bcdDevice= 1.00 [ 7388.712200] usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 7388.712203] usb 1-1.1.2: Product: USB audio CODEC [ 7388.712205] usb 1-1.1.2: Manufacturer: Burr-Brown from TI [ 7388.885578] usb 1-1: USB disconnect, device number 12 [ 7388.885583] usb 1-1.1: USB disconnect, device number 13 [ 7388.885585] usb 1-1.1.2: USB disconnect, device number 15 [ 7388.888370] usb 1-1.2: USB disconnect, device number 14 [ 7400.343123] PDLOG 2018/10/26 15:49:37.1540568976 P1 SRC 1500mA [ 7400.343687] PDLOG 2018/10/26 15:49:39.1540568978 P1 SRC 3000mA [ 7400.344458] PDLOG 2018/10/26 15:49:40.1540568979 P1 SRC 1500mA [ 7400.345042] PDLOG 2018/10/26 15:49:57.1540568996 P1 SRC 3000mA [ 7400.345583] PDLOG 2018/10/26 15:50:04.1540569003 P1 SRC 1500mA [ 7400.346288] PDLOG 2018/10/26 15:50:04.1540569003 P0 SRC 1500mA [ 7400.346739] PDLOG 2018/10/26 15:50:04.1540569003 P1 SRC 3000mA [ 7400.347244] PDLOG 2018/10/26 15:50:05.1540569004 P1 SRC 1500mA [ 7465.320381] i2c_hid i2c-ACPI0C50:00: i2c_hid_get_input: incomplete report (66/60482)
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Oct 26
The transition from 71.0.3578.8 to 71.0.3578.21 seems to be a red herring. I have a second eve device still on .8 and it doesn't work with the hub either--I figure there must be race conditions that just worked in my favor one day, and didn't another. |
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Comment 1 by ewj@google.com
, Oct 26