[Mesa-dev] [PATCH 1/3] vl/dri3: use external texture as back buffers

[Andy Furniss]

Andy Furniss wrote:
> Michel Dänzer wrote:
>> On 26/10/16 08:07 PM, Andy Furniss wrote:
>>>
>>> The bad = Starting with DRI3 (which is default) I still get trashed
>>> rendering full screen. Windowed including re-sizing seems OK.
>>>
>>> I use Fluxbox window manager, which does not use compositing -
>>> IIRC this has historically shown some ddx DRI2/3 issue that wasn't
>>> visible to those testing with compositing (but then the full screen
>>> case may avoid compositing anyway depending on settings).
>>
>> You may be running into a DDX driver issue fixed by
>> https://patchwork.freedesktop.org/patch/118514/ .
>
> Yes, that was it, OK with that patch.

Though "OK", sub-optimal loosing pageflip on tonga, as a vsync test
fails top 5% of screen unless I force GPU perf high.

Not related to this patch directly of course, but I am a bit surprised
that on auto powerplay the tonga is too slow to make 60Hz.

Tested with CPU forced high, so it's not CPU freq.