[Bug 1069498]

[Thomas-luebking]

Hi Pierre-Loup

(In reply to comment #96)
> The problem with glWaitVideoSync() is that it waits on the CPU
Ok, thanks for the information - i guess it's no misassumption thzat we could in a further patch completely scratch that path then?

> The intention behind the change you linked is good, but without the
> functionality provided by  GLX_EXT_buffer_age you have no guarantees 

Actually the current approach either forces full repaints or completes
the backbuffer from the frontbuffer (we scratched re-using the
backbuffer for it's undefined state, plus it will require some (but
minor) changes on clipping artificial elements), but the latter has
severe performance issues on the MESA stack (so we'll mostly require
GLX_EXT_buffer_age there, esp. since the weaker IGPs also typically
suffer most from effects like blurring etc.)

Many thanks for your assistance on the issue.

-- 
You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to kde-workspace in Ubuntu.
https://bugs.launchpad.net/bugs/1069498

Title:
  KWin shows tearing despite of VSync

To manage notifications about this bug go to:
https://bugs.launchpad.net/kdebase-workspace/+bug/1069498/+subscriptions