Does not detect connected monitors (evdi 1.13.0-1.14.0)

[blackPantherOS]

• Are you using the latest driver?
  Yep I tried use displaylink-driver-5.7.0.61.129

• Are you using the latest EVDI version?
  I tried use 1.13.0 and latest git (1.14.0) as well

• If you are using a DisplayLink device, have you checked 'troubleshooting'
  on DisplayLink's website?

No, because I still use device with 1.12.0 evdi and displaylink-driver-5.6.1.59.184

• Is this issue related to evdi/kernel?
  evdi

• Linux distribution and its version
  blackPanther OS v18-v22
• Linux kernel version
  5.15.85 - > 6.3.x
• Xorg version (if used)
  1.21.1.2
• Desktop environment in use
  KDE Plasma

The latest EVDI / DisplayLink driver does not detected connected monitors.
evdi kernel module is loaded, and nothing happed when connecting DisplayLink device to USB

• I need modify your evdi 1.12.0 code for I can build EVDI with kernel 6.3.8. And displaylink device workinkg fine again.

EVDI 1.13.0-1.14.0 :

17 12:49:08 HOST systemd[1]: Starting displaylink.service...                                                             
17 12:49:09 HOST kernel: evdi: [I] Initialising logging on level 4                                                       
17 12:49:09 HOST kernel: evdi: [I] Atomic driver: yes                                                                    
17 12:49:09 HOST kernel: evdi: [I] Increasing device count to 3                                                          
17 12:49:09 HOST kernel: evdi: [I] (card2) Opened by Task 11005 (modprobe) of process 11005 (modprobe)                   
17 12:49:09 HOST kernel: evdi evdi.0: [drm] Cannot find any crtc or sizes                                                
17 12:49:09 HOST kernel: [drm] Initialized evdi 1.14.0 20230516 for evdi.0 on minor 2                                    
17 12:49:09 HOST kernel: evdi: [I] Evdi platform_device create                                                           
17 12:49:09 HOST kernel: evdi: [I] (card3) Opened by Task 11005 (modprobe) of process 11005 (modprobe)                   
17 12:49:09 HOST kernel: evdi evdi.1: [drm] Cannot find any crtc or sizes                                                
17 12:49:09 HOST kernel: [drm] Initialized evdi 1.14.0 20230516 for evdi.1 on minor 3                                    
17 12:49:09 HOST kernel: evdi: [I] Evdi platform_device create                                                           
17 12:49:09 HOST kernel: evdi: [I] (card4) Opened by Task 11005 (modprobe) of process 11005 (modprobe)                   
17 12:49:09 HOST kernel: evdi evdi.2: [drm] Cannot find any crtc or sizes                                                
17 12:49:09 HOST kernel: [drm] Initialized evdi 1.14.0 20230516 for evdi.2 on minor 4                                    
17 12:49:09 HOST kernel: evdi: [I] Evdi platform_device create

17 12:49:08 HOST systemd[1]: Starting displaylink.service...                                                         
17 12:49:09 HOST kernel: evdi: [I] Initialising logging on level 4                                                   
17 12:49:09 HOST kernel: evdi: [I] Atomic driver: yes                                                                
17 12:49:09 HOST kernel: evdi: [I] Increasing device count to 3                                                      
17 12:49:09 HOST kernel: evdi: [I] (card2) Opened by Task 11005 (modprobe) of process 11005 (modprobe)               
17 12:49:09 HOST kernel: evdi evdi.0: [drm] Cannot find any crtc or sizes                                            
17 12:49:09 HOST kernel: [drm] Initialized evdi 1.14.0 20230516 for evdi.0 on minor 2                                
17 12:49:09 HOST kernel: evdi: [I] Evdi platform_device create                                                       
17 12:49:09 HOST kernel: evdi: [I] (card3) Opened by Task 11005 (modprobe) of process 11005 (modprobe)               
17 12:49:09 HOST kernel: evdi evdi.1: [drm] Cannot find any crtc or sizes                                            
17 12:49:09 HOST kernel: [drm] Initialized evdi 1.14.0 20230516 for evdi.1 on minor 3                                
17 12:49:09 HOST kernel: evdi: [I] Evdi platform_device create                                                       
17 12:49:09 HOST kernel: evdi: [I] (card4) Opened by Task 11005 (modprobe) of process 11005 (modprobe)               
17 12:49:09 HOST kernel: evdi evdi.2: [drm] Cannot find any crtc or sizes                                            
17 12:49:09 HOST kernel: [drm] Initialized evdi 1.14.0 20230516 for evdi.2 on minor 4                                
17 12:49:09 HOST kernel: evdi: [I] Evdi platform_device create                                                       
17 12:49:09 HOST systemd[1]: Started displaylink.service.

17 12:49:09 HOST kernel: evdi: [I] (card2) Opened by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card2) Closed by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card3) Opened by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card3) Closed by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card4) Opened by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card4) Closed by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST acpid[8116]: client connected from 11065[0:0]                                                           
17 12:49:09 HOST acpid[8116]: 1 client rule loaded                                                                       
17 12:49:09 HOST kernel: evdi: [I] (card2) Opened by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card2) Closed by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card3) Opened by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card3) Closed by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card4) Opened by Task 11065 (Xorg) of process 11065 (Xorg)                           
17 12:49:09 HOST kernel: evdi: [I] (card4) Closed by Task 11065 (Xorg) of process 11065 (Xorg)

17 12:49:12 HOST kernel: evdi: [I] (card2) Opened by Task 11065 (Xorg) of process 11065 (Xorg)
17 12:49:12 HOST kernel: evdi: [I] (card3) Opened by Task 11065 (Xorg) of process 11065 (Xorg)
17 12:49:12 HOST kernel: evdi: [I] (card4) Opened by Task 11065 (Xorg) of process 11065 (Xorg)

Disconnected/connected

17 12:57:51 HOST motion[10331]: [5:ml5:Hinta] [ERR] [VID] vid_start: Netcam RTSP failed to open
17 12:57:55 HOST kernel: usb 2-3: new SuperSpeed USB device number 6 using xhci_hcd
17 12:57:55 HOST kernel: usb 2-3: New USB device found, idVendor=17e9, idProduct=4301, bcdDevice=37.29
17 12:57:55 HOST kernel: usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
17 12:57:55 HOST kernel: usb 2-3: Product: USB3 to HDMI
17 12:57:55 HOST kernel: usb 2-3: Manufacturer: DisplayLink
17 12:57:55 HOST kernel: usb 2-3: SerialNumber: U3HD338349060
17 12:57:55 HOST kernel: usb 2-3: Warning! Unlikely big volume range (=511), cval->res is probably wrong.
17 12:57:55 HOST kernel: usb 2-3: [13] FU [HDMI 0 Audio Output Playback Volume] ch = 6, val = -8176/0/16
17 12:57:55 HOST mtp-probe[24230]: checking bus 2, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb2/2-3"
17 12:57:55 HOST mtp-probe[24230]: bus: 2, device: 6 was not an MTP device
17 12:57:55 HOST upowerd[8168]: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb2/2-3
17 12:57:55 HOST mtp-probe[24376]: checking bus 2, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb2/2-3"
17 12:57:55 HOST mtp-probe[24376]: bus: 2, device: 6 was not an MTP device

17 13:07:00 HOST kernel: evdi: [I] Initialising logging on level 4                                                       
17 13:07:00 HOST kernel: evdi: [I] Atomic driver: yes

17 13:08:09 HOST kernel: usb 2-3: new SuperSpeed USB device number 3 using xhci_hcd
17 13:08:09 HOST kernel: usb 2-3: New USB device found, idVendor=17e9, idProduct=4301, bcdDevice=37.29
17 13:08:09 HOST kernel: usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
17 13:08:09 HOST kernel: usb 2-3: Product: USB3 to HDMI
17 13:08:09 HOST kernel: usb 2-3: Manufacturer: DisplayLink
17 13:08:09 HOST kernel: usb 2-3: SerialNumber: U3HD338349060
17 13:08:09 HOST kernel: usb 2-3: Warning! Unlikely big volume range (=511), cval->res is probably wrong.
17 13:08:09 HOST kernel: usb 2-3: [13] FU [HDMI 0 Audio Output Playback Volume] ch = 6, val = -8176/0/16
17 13:08:09 HOST mtp-probe[16114]: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:14.0/usb2/2-3"
17 13:08:09 HOST mtp-probe[16114]: bus: 2, device: 3 was not an MTP device

** The modified good 1.12.0 driver with kernel 6.3.8 **

17 13:44:33 HOST systemd[1]: Starting displaylink.service...
17 13:44:33 HOST systemd[1]: Started displaylink.service.
17 13:44:34 HOST kernel: evdi: [I] (card2) Opened by Task 17880 (DesktopManagerE) of process 17871 (DisplayLinkMana)
17 13:44:34 HOST kernel: evdi evdi.0: [drm] Cannot find any crtc or sizes
17 13:44:34 HOST kernel: evdi: [W] evdi_painter_send_update_ready_if_needed:693 Painter does not exist!
17 13:44:34 HOST kernel: [drm] Initialized evdi 1.12.0 20220713 for evdi.0 on minor 2
17 13:44:34 HOST kernel: evdi: [I] Evdi platform_device create
17 13:44:34 HOST kernel: evdi: [I] Attaching to usb:2-1.3
17 13:44:34 HOST kernel: evdi: [I] (card2) Opened by Task 11783 (Xorg) of process 11783 (Xorg)
17 13:44:34 HOST kernel: evdi: [I] (card2) Closed by Task 11783 (Xorg) of process 11783 (Xorg)
17 13:44:34 HOST kernel: evdi: [I] (card2) Opened by Task 11783 (Xorg) of process 11783 (Xorg)
17 13:44:34 HOST kernel: evdi: [I] (card2) Closed by Task 11783 (Xorg) of process 11783 (Xorg)
17 13:44:34 HOST kernel: evdi: [I] (card2) Opened by Task 11783 (Xorg) of process 11783 (Xorg)
17 13:44:34 HOST kernel: evdi: [I] (card2) Opened by Task 17880 (DesktopManagerE) of process 17871 (DisplayLinkMana)
17 13:44:34 HOST kernel: evdi: [I] (card2) Added i2c adapter bus number 11
17 13:44:34 HOST kernel: evdi: [I] (card2) Connected with Task 17880 (DesktopManagerE) of process 17871 (DisplayLink
17 13:44:34 HOST kernel: evdi: [I] (card2) Connector state: connected
17 13:44:34 HOST kernel: evdi: [I] (card2) Connector state: connected
17 13:44:34 HOST kernel: evdi: [I] (card2) Edid property set
17 13:44:34 HOST kernel: evdi: [I] (card2) Connector state: connected
17 13:44:35 HOST kernel: evdi: [I] (card2) Edid property set
17 13:44:35 HOST kernel: evdi: [I] (card2) Connector state: connected
17 13:44:35 HOST kernel: evdi: [I] (card2) Edid property set
17 13:44:35 HOST kernel: evdi: [I] (card2) Connector state: connected

[tsjk]

I had pretty much the same problem, on Gentoo, with the latest LTS kernel. Using the "modified good 1.12.0 driver with kernel 6.3.8" works here as well. At least after downgrading the displaylink driver to v5.6.1.

[blackPantherOS]

I had pretty much the same problem, on Gentoo, with the latest LTS kernel. Using the "modified good 1.12.0 driver with kernel 6.3.8" works here as well. At least after downgrading the displaylink driver to v5.6.1.

Your welcome
and of course for any other distro users as well...
The Hungarian blackPanther OS also received this version as 1.12.1 fast update for 6.x kernels.

[codemonkeytbx]

Hey guys... I' m trying to apply the same fix in Manjaro running kernel 6.3.13, but was not able yet.
Tried first cloning the repo and trying make + make install, and later also to manually edit the PKGBUILD of evdi-git, but also didn't fly.. I see it tried to install a version 1.5.0 of evdi...

Can one of you tell me how to install the 1.12.1 modified version?

Thanks in advance

[codemonkeytbx]

I was able to install it in the end. After adding a pub key (andikleen/simple-pt#8 (comment)).

However bumped into another issue which seems to be related to the lack of support between displaylink-sway (I use MANJARO sway version) ... it seems sway tries to use evdi_dri.so for rendering and can't find that file... For now I' m stuck using a single monitor with a different docker I have.

If I find any solution in the feature I will update the post.

[blackPantherOS]

Can one of you tell me how to install the 1.12.1 modified version?

you can Clone modified codes from our repo here . It was tested and now use upto follwing kernel sure:
Linux corex.blackpanther.hu 6.4.3-desktop-1bP SMP PREEMPT_DYNAMIC Sat Jul 15 12:53:07 CEST 2023 x86_64 x86_64 x86_64 GNU/Linux

[codemonkeytbx]

hey @blackPantherOS , thanks for answering. I finally did manage to get it working. Had to apply 2 different patches in wlroots actually. Here is the link for those suffering from the same issue https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/1823#note_2011604

[blackPantherOS]

The latest: EVDI-1.14.1 and Displaylink - 5.8.0-63.33 still does not recognize connected Displaylink devices....
/The previous EVDI-1.12.0 (our forked version: 1.12.1) working fine. Tested upto kernel 6.5.3./

Product: USB3 to HDMI
Manufacturer: DisplayLink
SerialNumber: U3HD338349060

EVDI loglevel 10:

kernel: usb 3-4: new SuperSpeed USB device number 2 using xhci_hcd
kernel: usb 3-4: New USB device found, idVendor=17e9, idProduct=4301, bcdDevice=37.29
kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: usb 3-4: Product: USB3 to HDMI
kernel: usb 3-4: Manufacturer: DisplayLink
kernel: usb 3-4: SerialNumber: U3HD338349060
kernel: usb 3-4: Warning! Unlikely big volume range (=511), cval->res is probably wrong.
kernel: usb 3-4: [13] FU [HDMI 0 Audio Output Playback Volume] ch = 6, val = -8176/0/16
mtp-probe[16729]: checking bus 3, device 2: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-4"
mtp-probe[16729]: bus: 3, device: 2 was not an MTP device
upowerd[9094]: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4
systemd[1]: Starting displaylink.service...
kernel: evdi: [I] Initialising logging on level 10
kernel: evdi: [I] Atomic driver: yes
kernel: evdi: [I] Increasing device count to 3
kernel: evdi: [V] evdi_platform_device_probe:61 
kernel: evdi: [V] evdi_drm_device_init:165 
kernel: evdi: [V] evdi_painter_init:1182 
kernel: evdi: [V] evdi_modeset_init:516 
kernel: evdi: [V] evdi_crtc_init:476 
kernel: evdi: [D] evdi_crtc_init:499 drm_crtc_init: 0 p0000000063a30f80
kernel: evdi: [I] (card1) Opened by Task 16822 (modprobe) of process 16822 (modprobe)
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card1) Connector state: disconnected
kernel: evdi evdi.0: [drm] Cannot find any crtc or sizes
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: [drm] Initialized evdi 1.14.1 20230721 for evdi.0 on minor 1
kernel: evdi: [I] Evdi platform_device create
kernel: evdi: [V] evdi_platform_device_probe:61 
kernel: evdi: [V] evdi_drm_device_init:165 
kernel: evdi: [V] evdi_painter_init:1182 
kernel: evdi: [V] evdi_modeset_init:516 
kernel: evdi: [V] evdi_crtc_init:476 
kernel: evdi: [D] evdi_crtc_init:499 drm_crtc_init: 0 p000000006a684fe7
kernel: evdi: [I] (card2) Opened by Task 16822 (modprobe) of process 16822 (modprobe)
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card2) Connector state: disconnected
kernel: evdi evdi.1: [drm] Cannot find any crtc or sizes
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: [drm] Initialized evdi 1.14.1 20230721 for evdi.1 on minor 2
kernel: evdi: [I] Evdi platform_device create
kernel: evdi: [V] evdi_platform_device_probe:61 
kernel: evdi: [V] evdi_drm_device_init:165 
kernel: evdi: [V] evdi_painter_init:1182 
kernel: evdi: [V] evdi_modeset_init:516 
kernel: evdi: [V] evdi_crtc_init:476 
kernel: evdi: [D] evdi_crtc_init:499 drm_crtc_init: 0 p00000000348fad47
kernel: evdi: [I] (card3) Opened by Task 16822 (modprobe) of process 16822 (modprobe)
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card3) Connector state: disconnected
kernel: evdi evdi.2: [drm] Cannot find any crtc or sizes
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: [drm] Initialized evdi 1.14.1 20230721 for evdi.2 on minor 3
kernel: evdi: [I] Evdi platform_device create
systemd[1]: Started displaylink.service.
systemd[11280]: Reached target sound.target.
systemd[9402]: Reached target sound.target.
mtp-probe[16939]: checking bus 3, device 2: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-4"
mtp-probe[16939]: bus: 3, device: 2 was not an MTP device
kernel: evdi: [I] (card1) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_driver_close:227 
kernel: evdi: [V] evdi_painter_close:964 
kernel: evdi: [I] (card1) Closed by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [I] (card1) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_driver_close:227 
kernel: evdi: [V] evdi_painter_close:964 
kernel: evdi: [I] (card1) Closed by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [I] (card1) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_user_framebuffer_destroy:319 
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card1) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card1) Connector state: disconnected
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: evdi: [I] (card2) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_driver_close:227 
kernel: evdi: [V] evdi_painter_close:964 
kernel: evdi: [I] (card2) Closed by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [I] (card2) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_driver_close:227 
kernel: evdi: [V] evdi_painter_close:964 
kernel: evdi: [I] (card2) Closed by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [I] (card2) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_user_framebuffer_destroy:319 
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card2) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card2) Connector state: disconnected
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: evdi: [I] (card3) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_driver_close:227 
kernel: evdi: [V] evdi_painter_close:964 
kernel: evdi: [I] (card3) Closed by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [I] (card3) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_driver_close:227 
kernel: evdi: [V] evdi_painter_close:964 
kernel: evdi: [I] (card3) Closed by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [I] (card3) Opened by Task 10709 (Xorg) of process 10709 (Xorg)
kernel: evdi: [V] evdi_user_framebuffer_destroy:319 
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card3) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card3) Connector state: disconnected
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: evdi: [V] evdi_painter_set_vblank:657 
kernel: evdi: [V] evdi_painter_set_vblank:660 Painter lock
kernel: evdi: [V] evdi_painter_send_vblank:644 
kernel: evdi: [V] evdi_painter_set_vblank:671 Painter unlock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:679 
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:681 Painter lock
kernel: evdi: [V] evdi_painter_send_update_ready_if_needed:691 Painter unlock
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card3) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card3) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card2) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card2) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card1) Connector state: disconnected
kernel: evdi: [V] evdi_detect:93 
kernel: evdi: [V] evdi_detect:99 (card1) Connector state: disconnected

Another tested Displaylink device (does not work):
Product: VW202B
Manufacturer: DisplayLink
SerialNumber: 01BE-89LMQS026552