[PATCH 0/6] drm: Add mouse cursor hotspot support to atomic KMS

[Simon Ser]

Hi,

Please, read this thread:
https://lists.freedesktop.org/archives/dri-devel/2020-March/thread.html#259615

It has a lot of information about the pitfalls of cursor hotspot and
other things done by VM software.

In particular: since the driver will ignore the KMS cursor plane
position set by user-space, I don't think it's okay to just expose
without opt-in from user-space (e.g. with a DRM_CLIENT_CAP).

cc wayland-devel and Pekka for user-space feedback.

On Thursday, June 2nd, 2022 at 17:42, Zack Rusin <zack at kde.org> wrote:

> - all userspace code needs to hardcore a list of drivers which require
> hotspots because there's no way to query from drm "does this driver
> require hotspot"

Can you elaborate? I'm not sure I understand what you mean here.

Thanks,

Simon