i8042 generating thousands of spurious keypress interrupts
Bug #1761502 reported by
Amelia Rose Khan
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux (Ubuntu) |
Expired
|
Low
|
Unassigned | ||
Bug Description
i8042 generating thousands of spurious keypress interrupts
I am having an issue where the + key is repeating in all text fields when I am logged in and before logged in. Seems to happen as soon as I get to any login screen command line or GUI too. I don't think this happens before then but could be wrong. This is annoying but seems to also have stopped a few times but will come back out of the blue.
Beyond that, I have popped the key off and cleaned under there with no luck. I have also used the mainline kernel and still having issues. Last, the repeating key press is unclicked in settings.
| Changed in linux (Ubuntu): | |
| status: | New → Triaged |
| importance: | Undecided → Low |
| assignee: | nobody → TJ (tj) |
| description: | updated |
| Changed in linux (Ubuntu): | |
| assignee: | TJ (tj) → nobody |
| status: | Triaged → Incomplete |
Revision history for this message
| Launchpad Janitor (janitor) wrote | #3 |
| Changed in linux (Ubuntu): | |
| status: | Incomplete → Expired |
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I've done some extensive debugging with the reporter on this.
It's important to note two things:
1. BIOS Setup isn't affected
2. GRUB shell isn't affected
Which suggests it is kernel, possibly ACPI table, related.
We've done a lot of testing with various i8042.XXXX options including adding debug output. Logs will follow. Those show 0x4e is being send by a keyboard interrupt several times a second once the i8042 has been initialised.