action #113441
opencoordination #101048: [epic] Investigate and fix higher instability of openqaworker-arm-4/5 vs. arm-1/2/3
Try to mitigate "VNC typing issues" with disabled key repeat in linux tty's of qemu tests
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Description
Motivation¶
In #110542 we fixed key repeat errors by disabling key repeat completely in X11 environments. Now let's try to find a corresponding solution to linux tty's.
Acceptance criteria¶
- AC1: Active measures have been applied to prevent key repeat issues in linux tty's controlled over VNC in qemu tests
Suggestions¶
Independent of fixing the actual performance problems I think it can help in general for openQA tests if we configure the systems we test in with a disabled key repeat to mitigate the issues, i.e. "xset r off" within X11 sessions or whatever can be seen as equivalent in non-X11 getty terminals. According to fvogt "There's also an ioctl for the vtcon". The command "kbdrate" allows to configure something but says only for "Intel" and does not allow to disable key repeat completely, only increase times, which could already help enough. By default keyboard delay is "250 ms". Any different setting likely needs to be applied per VT. So in a true text tty one could use kbdrate -d 1000 whenever we enable a corresponding terminal, e.g. when we also login.
Updated by okurz over 2 years ago
- Copied from action #110542: Try to mitigate "VNC typing issues" with disabled key repeat added
Updated by okurz over 2 years ago
- Related to coordination #43889: [qe-core][epic][functional][virtio][wayland] openQA makes spelling mistakes added