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Bug 5269 - Deadzone incorrectly applied to trigger on Linux
Summary: Deadzone incorrectly applied to trigger on Linux
Status: WAITING
Alias: None
Product: SDL
Classification: Unclassified
Component: joystick (show other bugs)
Version: 2.0.13
Hardware: x86_64 Linux
: P2 normal
Assignee: Sam Lantinga
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-08-25 12:13 UTC by Mathieu Eyraud
Modified: 2020-12-10 09:48 UTC (History)
0 users

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Description Mathieu Eyraud 2020-08-25 12:13:18 UTC 
On Linux, deadzone for joystick axis are applied around 0. For triggers, this make their value snap on 0 in the middle of their travel.

I think deadzone should be applied around the rest value of the axis.
Comment 1 Sam Lantinga 2020-12-09 14:44:23 UTC 
Do you have a tested patch to fix this? I'm not sure whether Linux joysticks have specific axes that are designated as triggers.
Comment 2 Mathieu Eyraud 2020-12-10 09:48:02 UTC 
Taking a look at SDL_gamecontrollerdb.h, there is no axis designated for triggers.

Personnaly, I agree with pj5085 (bug5241) that deadzone should be removed. That would fix this bug.