Why do monitors wake up after suspend one time, but not the next?
Is there a way to get around this issue?
Please see attached support information.
I also raised the question on
stackexchange. Notice I installed the driver for Ubuntu on Debian. It works really with the exception that suspend does not behave reliably.
Code:
$ sudo dmesg -w | grep Display
[ 3.306247] usb 4-1.2: Manufacturer: DisplayLink
[ 7.395781] evdi: [I] (card1) Opened by Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 7.397744] evdi: [I] (card1) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 7.399740] evdi: [I] (card2) Opened by Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 7.401344] evdi: [I] (card2) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 9.889337] evdi: [I] (card1) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 9.912344] evdi: [I] (card2) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 1849.616093] evdi: [I] (card1) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 1849.616521] evdi: [I] (card2) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 7301.667983] evdi: [I] (card1) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[ 7301.668399] evdi: [I] (card2) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[11442.370372] evdi: [I] (card1) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[11442.370503] evdi: [I] (card2) Connected with Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[11552.506775] evdi: [I] (card1) Disconnected from Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[11552.534477] evdi: [I] (card1) Closed by Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[11552.536880] evdi: [I] (card2) Disconnected from Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
[11552.542512] evdi: [I] (card2) Closed by Task 1054 (DesktopManagerE) of process 919 (DisplayLinkMana)
$ sudo systemctl status displaylink-driver.service
● displaylink-driver.service - DisplayLink Driver Service
Loaded: loaded (/lib/systemd/system/displaylink-driver.service; static)
Active: inactive (dead)
May 26 14:50:56 debija systemd[1]: Starting DisplayLink Driver Service...
May 26 14:50:56 debija systemd[1]: Started DisplayLink Driver Service.
May 26 18:03:21 debija systemd[1]: Stopping DisplayLink Driver Service...
May 26 18:03:22 debija systemd[1]: displaylink-driver.service: Succeeded.
May 26 18:03:22 debija systemd[1]: Stopped DisplayLink Driver Service.
May 26 18:03:22 debija systemd[1]: displaylink-driver.service: Consumed 41min 25.761s CPU time.
$ lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 0bda:0328 Realtek Semiconductor Corp. USB3.0-CRW
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 014: ID 06cb:009a Synaptics, Inc. Metallica MIS Touch Fingerprint Reader
Bus 001 Device 004: ID 04f2:b61e Chicony Electronics Co., Ltd Integrated Camera
Bus 001 Device 009: ID 1395:0025 Sennheiser Communications Headset [PC 8]
Bus 001 Device 012: ID 062a:4101 MosArt Semiconductor Corp. Wireless Keyboard/Mouse
Bus 001 Device 011: ID 145f:020c Trust Trust Ergo Mouse
Bus 001 Device 010: ID 04b4:5218 Cypress Semiconductor Corp. USB-Serial Bridge
Bus 001 Device 008: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 005: ID 17ef:1029 Lenovo USB2.0 Hub
Bus 001 Device 002: ID 17ef:1028 Lenovo USB2.0 Hub
Bus 001 Device 007: ID 056a:5144 Wacom Co., Ltd Pen and multitouch sensor
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub