** Summary changed:
- [DisplayLink] screen flicker on gnome with t450s with ultra dock
+ [DisplayLink] screen flicker on gnome with t450s with ultra dock when using
HDMI (but not DisplayPort)
** Description changed:
- picture on monitor connected to DisplayPort flickers occasionally. between 1
***FIXED***
I decided to take it all apart to test and found out I opened the ticket with
"DisplayPort"
However I meant to say "displaylink" and I was using an HDMI cable...
Looking at the specs of the Lenovo dock
https://support.lenovo.com/us/en/solutions/pd028010
it has a HDMI 1.4 port so is
I changed from wayland to xorg FWIW but same flicker. slightly different
error message.
mrt 26 19:54:52 moya /usr/lib/gdm3/gdm-x-session[1794]: (EE) client bug: timer
event15 debounce: scheduled expiry is in the past (-2ms), your system is too
slow
mrt 26 19:54:52 moya /usr/lib/gdm3/gdm-x-sessi
"evdi" I think is the kernel driver for DisplayLink.
** Package changed: mutter (Ubuntu) => evdi (Ubuntu)
** Changed in: evdi (Ubuntu)
Status: Incomplete => New
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greetings!
So.. what exactly is this "evdi" that you were mentioning?
I just returned the laptop from a few hours unattended (did not suspend, just
lock / walk away) and was greeted by flickering, this time only a part of the
screen but all the time.
the flicker that I usually see is short, t
very little events as of now.. yesterday evening I had them in 5-10 minute
intervals.
I was pushing a lot of data via webdav from FTP (datacenter) via my laptop to
my NAS
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another one - 12:25:55
only one entry in journal:
mrt 19 12:25:09 moya gnome-shell[1690]: libinput error: client bug: timer
event20 debounce short: scheduled expiry is in the past (-0ms), your system is
too slow
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Hey Daniel
thanks for your help.
I tried to correlate before.. what happens all the time (why I opened
this bug) is the "system is too slow" message. That one correlates. I
see it every time it happens.
screen last flickered at 11:17:05 - then went out (blank screen) for
like 10 seconds
when it
Thanks. I wonder if the flicker coincides with these kernel messages:
kernel: evdi: [W] evdi_painter_send_event:307 Painter is not connected!
kernel: evdi: [D] evdi_painter_dpms_notify:654 (dev=0) Notifying dpms mode: 3
Can you please take note of what time the flicker happens next time and
compa
** Attachment added: "lspci as requested"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1920036/+attachment/5478152/+files/lspci.txt
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T
** Attachment added: "journal as requested"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1920036/+attachment/5478151/+files/journal.txt
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https://bugs.launchpad.net/bugs/192003
Please run these commands:
lspci -kv > lspci.txt
journalctl -b0 > journal.txt
and attach the resulting text files here.
** Changed in: mutter (Ubuntu)
Status: New => Incomplete
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