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Old 01-20-2017, 11:23 AM   #1
RussianNeuroMancer
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Exclamation DisplayLink 1.2.65 regressions on Ubuntu 16.10

Hello!
After upgrade Ubuntu Gnome 16.04 to 16.10 I found three regressions:
  1. Dock station reconnect is required to get evdi working.
  2. If dock station is attached and working when GDM is asking for password, then login to user session is always lead to Xorg Server crash (then GDM is asking for password again) probably because Gnome trying to apply saved display settings at login. This issue wasn't happen with 1.1.62 DisplayLink driver on Ubuntu Gnome 16.04.
    Workaround: poweroff dock, poweron tablet and login, poweron dock only when login is completed (this also workaround for issue in Item 1).
  3. This one is tricky. External display position in System Display Settings could lead to black internal tablet screen.
    Ubuntu Gnome 16.04 with 1.1.62 DisplayLink driver: if external display is above internal display, then internal display will be black after login. On 16.04 workaround was to poweron dock only when login is completed (yep, same workaround as in Item 2) but now this doesn't help:
    Ubuntu Gnome 16.10 with 1.2.65 DisplayLink driver: if external display is above internal display, then internal display will stay black.
    Workaround: in System Settings place internal display on the left side and external display on the right side.
You can ask for any additional info, logs or troubshooting steps if this help DisplayLink fix this issues.
Attached Files
File Type: zip tablet2_2017-01-20T18:52:37.086105.zip (2.16 MB, 2 views)

Last edited by RussianNeuroMancer; 01-20-2017 at 11:44 AM. Reason: Logs attached
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Old 02-27-2017, 09:20 AM   #2
RussianNeuroMancer
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1.2.65 uninstallation, reboot, 1.3.52 installation - does not help. None of listed issues are resolved.
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Old 04-11-2017, 03:55 AM   #3
38tjfpo29
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Default Same Issue

I'm running Ubuntu 16.10 with Gnome 3.20.4. X crashes every time the display link device is plugged in. I have tested this on 3 different display link devices. Same result for them all. This was working in 6.04. Does display link intend to support Ubuntu version other than LTS?

I bought this device specifically because the manufacturer claims it supports Ubuntu. All I have now is an over complicated USB hub and unusable monitors.
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Old 05-05-2017, 05:54 AM   #4
RussianNeuroMancer
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Any answer from DisplayLink? Do you see enough information in logs that I attached to first post?
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Old 05-08-2017, 10:43 AM   #5
mlukaszek
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Hi,

Sadly, since we've raised the X crash upstream there was no activity:
https://bugs.freedesktop.org/show_bug.cgi?id=98745

Please help by adding your comment to the bug.

Thanks,
Michal
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Old 05-08-2017, 10:53 AM   #6
RussianNeuroMancer
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Quote:
Originally Posted by mlukaszek View Post
Hi,

Sadly, since we've raised the X crash upstream there was no activity:
https://bugs.freedesktop.org/show_bug.cgi?id=98745

Please help by adding your comment to the bug.

Thanks,
Michal
Sure, commented.

What about item 3 from first post? It's X Server issue or driver side issue?
I could test items 1&2 with newer Xorg, but seems like latest DisplayLink driver require workarounds to get this combination working. Is there ETA for newer version that will work without xorg.conf with workaround options?
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Old 07-12-2017, 10:20 PM   #7
RussianNeuroMancer
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Quote:
Originally Posted by mlukaszek View Post
Hi,

Sadly, since we've raised the X crash upstream there was no activity:
https://bugs.freedesktop.org/show_bug.cgi?id=98745

Please help by adding your comment to the bug.

Thanks,
Michal
Hello!
After upgrade to Ubuntu Gnome 17.04 I can't get screen attached to dock working at all. I upgraded to Ubuntu Gnome 17.04, uninstalled DisplayLink 1.3.52 driver, reboot, installed DisplayLink 1.3.54 driver, reboot. After that I tried both xorg.conf from FAQ (Intel one and modesetting with disabled page flip) I also tried workaround xorg.conf from this thread - display attached to dock is either always stay black or render only cursor like here.

Please help get DisplayLink driver working!
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File Type: zip tablet3_2017-07-13T05_09_26.821975.zip (145.6 KB, 0 views)
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Old 01-17-2018, 12:48 AM   #8
RussianNeuroMancer
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All issues mentioned above was resolved with DisplayLink Driver 4.1 update.

Only remaining issue right now is tearing on both screens (laptop's screen and external screen).
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