Hi guys, I have a touch screen dell latitude E7270 with ubuntu 22.04 on it.
Now, it all worked fine until one day I decided that I’d plug my laptop to a docking station (a dell one) to see if I could connect multiple monitors to the laptop. I couldn’t have more than 1 extra monitor working.
During that and after that problems started. The laptop appears to have a life of its own, a lot of applications open up on their own and on the screen it looks as if someone was clicking on different applications to open them and I can’t reallyclose then because it switches focus automatically fromone app to the other. This happened while the laptop was connected to the docking station but now it’s happening regardless of whether that’s the case or not. All I could do is to turn it off using the on/off button. When I turn it on it might work or not and I have to turn it off and onagain till it works.
I believe it has something to do with the graphuc drivers, but I don’t know linux well enough to sort it out. I guess if I could use one set of drivers that allow me to 1) get rid of the issue and 2) manage to connect this to the docking station and allow extra monitors to work would be amazing.
Does anybody know exactly how to find out what’s wrong and ideally know how to proceedto fix it please?
Any help would be obviously much appreciated :-)
Thanks

Hi, This artical may help you.

https://askubuntu.com/questions/1392...e-touch-screen

Possibly us knowing your laptop’s graphics setup would help us help you. Run inxi -GSaz in a DE terminal like Konsole or Xterm, then copy/paste input/output from it here using the code button ( # ) above the input window. If inxi produces an error message, try the same thing again after first doing sudo apt install inxi.

This is not driver-related. Try restricting input to your touchscreen by running 'xinput --map-to-output device crtc' where device is your touchscreen input id which can be found by running xinput, and crtc is your touchscreen display id as reported by xrandr. If it is X11, that is, no idea how to do it in wayland.

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Thanks guys. I wouldn't necessarily want to disable the touch screen as mentioned in one of the posts, unless there is no any other way to fix it.
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If your GDM login screen allows to select an X11 session instead of Wayland, try it. Don't put commands in separate code tags, and don't omit the following prompt that shows where command output actually ended. Also show the ls -1 /sys/class/drm complete transaction.

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I don't think it does allow any kind of customisation, I guess I'd have to download some app to do that?

I wasn't speaking of anything involving any kind of customization. Most installations' login greeter themes have some sort of button somewhere that you can click to choose the type of GUI session to log into. If your greeter is configured for automatic login, then you wouldn't have any such presentation unless after logging out of your first session without rebootingThis means the kernel knows about 3 inputs that the GPU supports other than the one used for the laptop's own display (eDP-1): 1 display port, and either 1 HDMI port plus 1 DVI port, or 2 HDMI ports. WRT video, HDMI and DVI are identical. The differences are DVI carries no audio, and the connector used.

Yes, I see what you mean. Mine isn't automatic login but it doesn't let me choose any configuration as such, I'm afraid

Other DM's exist that you could switch to from GDM, if GDM is indeed not offering any alternative DE session to log into: LightDM, SDDM, TDM that I know of for Jammy. I mostly use TDM, and never GDM (I never use Gnome). What does ls /usr/share/xsessions report?

sorry, been off ill.

This shows you have only two choices. The first would most likely be the default running in Wayland, and the other would be the default running in Xorg. You should try both versions to find out if the behavior differs.

Next I suggest to do:This should add a new session type IceWM running in Xorg. After installing, select it to open a new session, to see if the problem remains.

OK, now I get the options to select which session to use, thanks.
I'll play around with the sessions a bit and see what happens and whether the issue occurs in other types of sessions or not and post back. It might take a bit because even in the original session the issue wasn't always there.

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OK, actually it was faster than I thought. Xorg session showed the issue, it was actually, somehow, worse than a normal session.
I'm now trying IceWM (never used it before but the look and feel is really really different)