[amdgpu][tahiti xt] cursor motion smoothness

[Michel Dänzer]

On 2018-07-02 04:04 PM, sylvain.bertrand at gmail.com wrote:
> On Mon, Jul 02, 2018 at 11:29:19AM +0200, Michel Dänzer wrote:
>> On 2018-07-02 11:24 AM, Michel Dänzer wrote:
>>> On 2018-07-01 02:52 PM, sylvain.bertrand at gmail.com wrote:
>>>> Hi,
>>>>
>>>> I noticed that when my monitor runs at 60Hz, the cursor motion is really not
>>>> smooth, even at low speed (it starts to be smooth at low speed when my monitor
>>>> runs at 120/144Hz). Is there a way to improve this at the hardware level or is
>>>> this a xserver issue?
>>>> (I run everything git no older than 1/2 week/s).
>>>
>>> If you have DC enabled, does disabling it (amdgpu.dc=0) help?
>>
>> Never mind, I missed that it's about Tahiti, which DC doesn't support.
>>
>>
>> Please share the corresponding Xorg log file.
>>
>> What exactly does "not smooth" mean?
> 
> I meant cursor motion is very blury, enough I can loose its location on the
> screen.

I'm afraid I'm still not sure what "blurry motion" means exactly.

Is the behaviour different with the Xorg modesetting driver and/or the
radeon kernel driver?


> And for instance, while moving the dota2 map with the grab method, at 60Hz
> it looks like moving the dota2 map at a sub-30Hz with some lag.

Sounds like maybe DOTA doesn't use the X11 cursor (which would end up
using the HW cursor), but renders the cursor as part of its scene.


Can you share the corresponding dmesg output and Xorg log file?


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer