[manjaro-dev] Bug report, Manjaro 20 after recent update

[Lawrence Boothby]

It has been reported to me that after update to:

[greg at greg-pc ~]$ uname -a
Linux greg-pc 5.4.67-1-MANJARO #1 SMP PREEMPT Wed Sep 23 14:20:18 UTC
2020 x86_64 GNU/Linux

[greg at greg-pc ~]$ lsb_release -a
LSB Version: n/a
Distributor ID: ManjaroLinux
Description: Manjaro Linux
Release: 20.1.1
Codename: Mikah

udldrmfb USB connected Displaylink DL-1x5 zero clients no longer
display a login screen on USB monitors in multi-seat mode and also are no longer

recognized as potential USB displays for extending a single user's
desktop. In both
cases you can directly copy data to the frame buffer /dev/fb1 of the
udldrmfb device and

corresponding pixels will be displayed, so udldrmfb itself must be working, but

the login manager is not displaying a greeter screen, nor does the GUI
display utility

see this monitor so unable to enable it to extend a single desktop either.

loginctl reports the various desired statuses except that there is no login
session on the udldrmfb connected monitor in multi-seat mode.

fbset also displays the statuses you would expect if it were working.

I updated my Manjaro 20 to a still more recent update and these problems
have not been fixed.

My own version of Mangero 20 XFCE is:

[asm32 at manjaro20 ~]$ uname -a
Linux manjaro20 5.*8.11-1-MANJARO* #1 SMP PREEMPT Wed Sep 23 14:35:40
UTC 2020 x86_64 GNU/Linux
[asm32 at manjaro20 ~]$


[asm32 at manjaro20 ~]$ lsb_release -a
LSB Version: n/a
Distributor ID: ManjaroLinux
Description: Manjaro Linux
Release: 20.1.1
Codename: Mikah
[asm32 at manjaro20 ~]$

I have the Plugable UD-160-A USB connected zero client based on
DisplayLink dl-165 chip

but I also have ones with DL-125 and DL-195 that I can test with for you.

Mint 20 XFCE Linux with all current updates continues to work properly with
Displaylink USB connected zero clients in multi-seat configuration.
Mint and Manjaro were

the only two stable distributions for USB DisplayLink dl-1x5 zero
client multi-seat so fixing

Manjaro seems pretty important for this use case.


-Lawrence E. Boothby, USA, http://www.multi-seat.com/
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