It appears swrast has GL_MAX_TEXTURE_SIZE = 8192, so yes 2560x4 exceeds that. Not sure why "Copy To Texture" isn't helping to fix it.
What if you only use three displays instead of four? Does it work then? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1459613 Title: connecting 2x 4k screens on a Dell XPS12 (9Q33): compiz crashed with SIGSEGV in GLTexture::matrix() from GLScreen::glPaintCompositedOutput To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1459613/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs