After today's investigation, I think the cachelines that are appearing as corruption are not from an lines that should have been invalidated, but are the flushed lines from the next frame. IE, we're releasing the buffer too early, and the flushed lines from the backbuffer render are appearing as corruption in the previous frame. I've been able to use the sync extensions from EGL_KHR_fence_sync to stabilize cpu rendering and make sure that OES_EGL_image_external is synchronized. Will continue testing before saying its figured out, but seems to be improved.
It might take a bit more work to come up with the proper patch that makes both android and mesa happy though. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1406725 Title: Severe graphical corruption (mostly horizontal streaks/lines) running software clients (including Xmir) on android Status in canonical-pocket-desktop: In Progress Status in Mir: In Progress Status in xorg-server package in Ubuntu: Invalid Bug description: I'm seeing severe graphical corruption running mir_demo_client_flicker on mako. Start a few instances of the client (or just one flicker and some other clients) and you'll see the mir_demo_client_flicker window contains significant corruption. I don't think it's an overlays issue. The problem occurs even without overlays. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-pocket-desktop/+bug/1406725/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
