17.10 Problems brainstorm
I have an idea, to brainstorm some ideas (possibly with people who have deeper knowledge on EVDI and USB).
I was able to run 3-dsplay setup by editting /etc/default/grub and update line with GRUB_CMDLINE_LINUX_DEFAULT to look like this: Code:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_iommu=off pcie_port_pm=off acpi_backlight=none acpi_osi=Linux acpi_osi=! acpi_osi=\"Windows 2009\"" Code:
Section "Device" The dmesg output during error is always following: Code:
[wto lis 7 09:13:30 2017] usb 4-1.1: Disable of device-initiated U1 failed. Code:
[wto lis 7 09:12:32 2017] pcieport 0000:00:1d.6: AER: Corrected error received: id=00ee Code:
[wto lis 7 09:13:33 2017] [drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x4000059, supported mask 0x7400003f My machine_info.txt: Code:
Machine name: tempest --------------------------------------------------------------- Im most interested in interpretation of following lines: Code:
[wto lis 7 09:13:30 2017] usb 4-1.1: Disable of device-initiated U1 failed. I hope we can come up with something, because I would really like to use this D6000 station for something more than ultra-expensive USB hub... PS. Why are DLM logs base64 encoded binaries? PS2. Why you guys @ DisplayLink seem not to see this issue? |
I don't see anything like your output via dmesg. Of course, I am using a D1000 with only one external monitor, a flash drive, and a Logitech webcam attached to it.
What do you have attached to your D6000? Your setup seems much more complex than mine. I execute the following command. Code:
dmesg | grep -i usb | tail Code:
[ 33.652821] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003 |
The dmesg output with error is when disconnect happens.
My setup is: Samsung FHD display via HDMI Dell FHD display via DisplayPort Lenovo USB mouse Lenovo USB keyboard Phillips headphones via 3.5mm jack (no microphone) Here is my output (with one DisplayPort monitor attached) Code:
[ 4919.472870] usb 4-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 |
I recommend taking everything off the D6000 but one external display (try each external display as the lone display) and then add each other device back to the D6000 one by one (in every combination) until you see the error messages. If it's just a specific device combination that causes the problem, you should be able to pin it down in a reasonable amount of time. You may have to obtain a second USB hub (as I have) in order to follow the suggested procedure.
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Hi,
I have tested multiple combinations and seems that following error: Code:
[pią lis 10 09:12:26 2017 < 0,000072>] [drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x121, supported mask 0x7400003f Today i intend to test all peripherals connected to laptop (with the Samsung display via HDMI) and Dell display via DP via Dock to see if I will get any disconnects. Wish me luck! |
Hello again,
after testing some combination I ended up with USB mouse & keyboard + DELL display connected via dock and Samsung via HDMI. The tell displays goes blank from time to time but does not disconnect (display manager thinks the display is still there, I can even move windows from that display). On error, dmseg says: Code:
[pią lis 17 08:45:03 2017 < 0,072060>] usb 4-1.1: reset SuperSpeed USB device number 5 using xhci_hcd One more thing I noticed today is that sometimes dmesg spits out a bunch of these: Code:
[pią lis 17 08:53:20 2017 < 0,009739>] pcieport 0000:00:1d.0: AER: Corrected error received: id=00e8 Code:
*-pci:3 |
Same issue here
I am using Ubuntu 18.04 on Dell XPS 15 (9550) laptop. I updated the firmware for both the Dell laptop and the Dell DisplayLink D6000
I have two Dell U2415 monitors connected to the display ports. The DisplayLink randomly disconnects and I see the following log messages: [100477.245855] usb 4-1.1: Disable of device-initiated U1 failed. [100477.252819] usb 4-1.1: Disable of device-initiated U2 failed. [100477.252892] cdc_ncm 4-1.1:1.5 enx9cebe88af7b4: unregister 'cdc_ncm' usb-0000:3e:00.0-1.1, CDC NCM [100477.292858] usb 4-1.1: Set SEL for device-initiated U1 failed. [100477.299828] usb 4-1.1: Set SEL for device-initiated U2 failed. [100477.457709] userif-4: sent link down event. [100477.457711] userif-4: sent link up event. [100477.626135] usb 4-1.1: reset SuperSpeed USB device number 3 using xhci_hcd [100477.663572] usb 4-1.1: Warning! Unlikely big volume range (=767), cval->res is probably wrong. [100477.663575] usb 4-1.1: [4] FU [Mic Capture Volume] ch = 2, val = -4592/7680/16 [100477.664076] usb 4-1.1: Warning! Unlikely big volume range (=672), cval->res is probably wrong. [100477.664078] usb 4-1.1: [7] FU [Dell USB Audio Playback Volume] ch = 6, val = -10752/0/16 [100477.686576] cdc_ncm 4-1.1:1.5: MAC-Address: 9c:eb:e8:8a:f7:b4 [100477.686578] cdc_ncm 4-1.1:1.5: setting rx_max = 16384 [100477.686638] cdc_ncm 4-1.1:1.5: setting tx_max = 16384 [100477.686847] cdc_ncm 4-1.1:1.5 usb0: register 'cdc_ncm' at usb-0000:3e:00.0-1.1, CDC NCM, 9c:eb:e8:8a:f7:b4 [100477.687672] usb 4-1.1: usbfs: process 22580 (DeviceWindowDis) did not claim interface 0 before use [100477.689538] cdc_ncm 4-1.1:1.5 enx9cebe88af7b4: renamed from usb0 [100477.715153] IPv6: ADDRCONF(NETDEV_UP): enx9cebe88af7b4: link is not ready [100477.715262] IPv6: ADDRCONF(NETDEV_UP): enx9cebe88af7b4: link is not ready [100477.733959] cdc_ncm 4-1.1:1.5 enx9cebe88af7b4: network connection: disconnected [100482.582012] cdc_ncm 4-1.1:1.5 enx9cebe88af7b4: 1000 mbit/s downlink 1000 mbit/s uplink [100482.614013] cdc_ncm 4-1.1:1.5 enx9cebe88af7b4: network connection: connected [100482.614097] IPv6: ADDRCONF(NETDEV_CHANGE): enx9cebe88af7b4: link becomes ready [100482.814536] userif-4: sent link down event. [100482.814538] userif-4: sent link up event. [100486.994095] userif-4: sent link down event. [100486.994098] userif-4: sent link up event. [100488.134488] userif-4: sent link down event. [100488.134493] userif-4: sent link up event. |
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