Red Hat Bugzilla – Bug 1301532
Keypresses become sticky (especially during IO)
Last modified: 2018-04-12 16:13:17 EDT
Description of problem:
My system stutters when there is heavy IO. BTRFS exacerbates this issue. Whenever these stutters happen on a Wayland session, single keystrokes are registered as long key presses.
Example: attempting to type "this" during a stutter would result in something like "tttttttttttttttthis"
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Cause stuttering (IO, swapping, anything)
2. Type text
1. Lock screen
2. Wait until screen sleeps
3. type password (automatically wakes screen and catches password input)
a) sticky keys
b) password is always wrong. More letters are inputted.
Keys single keystrokes are registered as single keystrokes
Fedora 24 is still affected by this.
Not that GDM is not the only thing affected by this issue. It can even happen while typing into a terminal or text editor.
It happens whenever there's heavy disk IO or any spike in latency. This doesn't happen to me on X.
Here's an example of this happening in the lockscreen
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I just updated to fedora 28 beta, which comes with wayland by default, IIRC. I am seeing this bug often and would like to see this issue be higher prioritised.
I think if there was a fedora 28 release with this bug in it, that version of fedora would be basically unusable. For example, it is not always possible to close a single tab in firefox, since CTRL+W "expands" into a loop of CTRL+W and closes all tabs and windows without a simple way to restore them.
It seems wayland is default since fedora 25. Could something else be the cause of this issue, considering that I am only seeing it after updating from fedora 27 to fedora 28 beta
This might have been a one-off for me. (Fixed after the latest `dnf update` on fedora 28 beta)