** Package changed: xserver-xorg-input-libinput (Ubuntu) => linux-
firmware (Ubuntu)
** Package changed: mutter (Ubuntu) => fwupd (Ubuntu)
** Summary changed:
- DELL M3800 Touchscreen not working after login with fractional scaling.
+ DELL M3800 Touchscreen not working after login
** Tags
It seems to be not related only to M3800 laptop but others like HP Spectre too.
Regarding this topic I'm able to have a working touchscreen when I removed
fwupd.
https://askubuntu.com/questions/1234975/touchscreen-stops-working-a-few-
seconds-after-login-to-gnome-ubuntu-session-ubu
I removed
Hello,
Tried a fresh install of Ubuntu 20.04.2 and problem is the same even I haven't
activated fractional scaling.
The touchscreen is working good on live iso.
It's also working good on GDM before a session is opened.
Hope you can fix this bug.
Best regards.
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** Tags added: xrandr-scaling
** Also affects: mutter (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1886912
Title:
DELL M3800 Touchscreen not
Hello,
The bug is still present with 20.04.2.
Can't it be related to gnome ?
How can I help ?
Best regards.
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https://bugs.launchpad.net/bugs/1886912
Title:
DELL M3800 Touchscreen not
** Changed in: libinput (Ubuntu)
Status: Incomplete => New
** Changed in: xserver-xorg-input-libinput (Ubuntu)
Status: Incomplete => New
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Hello,
Can I send more informations to help to track this bug ?
Best regards.
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https://bugs.launchpad.net/bugs/1886912
Title:
DELL M3800 Touchscreen not working after login with
Oh actually don't delete any config files. I just noticed we ship some
default ones like:
/usr/share/X11/xorg.conf.d/40-libinput.conf
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Title:
Just a little precision.
If I open my "rom1" session where I have enabled and disabled the
fractional scaling, then I close it and open the "test" session my
touchscreen is not working.
If I reboot the computer and open "test" session only my touchscreen is
working.
It seems that open my "rom1"
I never created myself any xorg config file.
I will try to delete it. Do you have the file location please ?
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Title:
DELL M3800 Touchscreen not
I assume the device in question is the 'SYNAPTICS Synaptics Large Touch
Screen'. The log file in comment #56 shows that xserver-xorg-input-
libinput is aware of the device but not using it.
It also looks like you have a Xorg config file that is trying to
configure that device so that config file
After found how to reproduce the bug I have disabled fractional scaling and the
problem persists.
I tried on "Ubuntu on Wayland" session and the problem is the same.
journalctl -b0 > journal_on_wayland.txt
I tried to reset gnome settings using "dconf reset -f /org/gnome/" and
the problem
journalctl -b0 > journal.txt
when touchscreen is not working
** Attachment added: "journal.txt"
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1886912/+attachment/5392234/+files/journal.txt
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Please clarify:
* Does disabling fractional scaling fix the problem?
* Does logging into 'Ubuntu on Wayland' fix the problem?
Also when the problem is happening please run:
journalctl -b0 > journal.txt
and attach the resulting text file here.
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** Summary changed:
- DELL M3800 Touchscreen not working after login
+ DELL M3800 Touchscreen not working after login with fractional scaling.
** Package changed: linux (Ubuntu) => gnome-shell (Ubuntu)
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