Atomic KMS API lacks the ability to set cursor hot-spot coordinates

[Michel Dänzer]

On 2020-03-18 4:22 p.m., Simon Ser wrote:
>>
>> On 3/18/20 3:38 PM, Simon Ser wrote:
>>>
>>>> 1) Letting the VM-viewer window-system draw the cursor as it normally
>>>> would draw it.
>>>
>>> Why is this important? Can't the VM viewer hide the cursor and use a
>>> sub-surface to manually draw the cursor plane configured by the guest?
>>
>> Because then moving the cursor as seen by the user requires a round trip
>> through the VM and that adds latency, esp. when the VM viewer is viewing
>> a VM which is running somewhere else over the network.
> 
> The video output has latency anyway.

Sounds like you've never tried the two different modes yourself? :) IME
it makes a big difference even with a local VM. Even very little latency
can make the cursor feel awkward, like it's being held back by a rubber
band or something.


-- 
Earthling Michel Dänzer               |               https://redhat.com
Libre software enthusiast             |             Mesa and X developer