CONFIRMED. Downgrading Mesa to 12.0.1 fixes the problem: https://launchpad.net/ubuntu/+source/mesa/12.0.1-3ubuntu2/+build/10506751
So the regression was triggered by: https://launchpad.net/ubuntu/+source/mesa/12.0.2-1ubuntu1 However that doesn't mean Mesa is buggy necessarily. Our Qt EGL setup code might be requesting something invalid and it only just became a fatal error. In that case our Qt code would need fixing rather than Mesa. Indeed non-Qt clients don't have the bug at all. ** Changed in: mesa (Ubuntu) Status: Invalid => Confirmed ** Changed in: mesa (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1620934 Title: Qt/QML apps don't render any more (logs say "QEGLPlatformContext: eglMakeCurrent failed: 3001") To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1620934/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
