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I've been happily running GNOME (on Xorg) and Arch on my XPS 15 since September last year without issue. Recently, as far as I can tell after the GNOME 3.28 update, whenever I type gre an overlay bezel (like those shown when adjusting volume) is shown with a "no symbol" (?) in it. You can see a video of the behaviour here. You can imagine it's pretty annoying to have it happen every time I try to run grep. I've tried tailing the journal whist reproducing it but nothing is logged. I've tried different applications and it happens in all the ones I've tried: GNOME Terminal, Tilix, gedit, Firefox. I've updated and rebooted but it still persists. I'm looking for any ideas on what else to try in order to track down the source of the issue.
Last edited by wezm (2018-04-03 21:16:33)
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Try reproducing the issue with newly created user (or clear your current user's configuration), to check whether this is caused by something in your user configuration, or something more complicated e.g. some odd input issue.
Also, welcome to forums.
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Thanks for the welcome and the suggestion. I created a new user. Logged out of my user and logged into the new user and the issue was present there too. I also took some more drastic measures and removed all non-base packages and reinstalled gnome starting with gnome-shell and only adding bits I wanted after that but the issue remains. Very strange.
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The plot thickens:
- Pressing 'ert' at the same time triggers volume up
- gfd triggers the no symbol
- hjk triggers the no symbol
In hindsight I recently applied a UEFI update to this machine. I wonder if that's related...
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Next you could test if using a different xf86-input driver makes any difference, or running gnome on wayland.
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Wayland exhibits the same behaviour. My understanding is Wayland can only use libinput so I'm not really sure it makes sense to swap the input driver. On the Linux console pressing these key combinations does not do anything strange. I'm leaning towards it being something in the GNOME stack. I suppose the next thing I could try is to install a different desktop environment or basic window manager and see if it happens in that.
Edit: I wondered if this was some sort of weird ghosting in the keyboard so connected an external keyboard. When typing on the external keyboard the problem does not occur.
Last edited by wezm (2018-04-02 22:01:36)
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I'm going to declare this a hardware issue. I have OpenBSD installed on this machine but I don't use it all that often. I rebooted into it last night update to the recent 6.3 release and was able to reproduce the issue (before updating).
Edit: I reverted to the previous UEFI version (1.7.1) and that has solved the problem. It also appears Dell have yanked the version I was on (1.8.1) as it's not shown on the website anymore.
Last edited by wezm (2018-04-03 21:13:41)
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