Thanks, I'll try weston-launch when I get a chance, and I'll try it on ubuntu 18.04 with intel graphics.
In the meantime, I checked the maximum size a few systems report, and it does seem to be a property of the graphics hardware and/or driver. See also http://webglstats.com/webgl2/parameter/MAX_TEXTURE_SIZE === + uname -a Linux rbb-ubu1604-6 4.4.0-128-generic #154-Ubuntu SMP Fri May 25 14:15:18 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux + grep maximum + xrandr Screen 0: minimum 8 x 8, current 3840 x 6480, maximum 32767 x 32767 + lspci + grep VGA 03:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1) + glxinfo + grep string server glx vendor string: NVIDIA Corporation server glx version string: 1.4 client glx vendor string: NVIDIA Corporation client glx version string: 1.4 OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GTX 1060 6GB/PCIe/SSE2 OpenGL core profile version string: 4.5.0 NVIDIA 390.67 OpenGL core profile shading language version string: 4.50 NVIDIA OpenGL version string: 4.6.0 NVIDIA 390.67 OpenGL shading language version string: 4.60 NVIDIA OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 390.67 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20 === + uname -a Linux rbb-ubu1804-5 4.17.0-999-generic #201806080237 SMP Fri Jun 8 06:41:11 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux + xrandr + grep maximum Screen 0: minimum 320 x 200, current 7680 x 2160, maximum 16384 x 16384 + lspci + grep VGA 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega [Radeon RX Vega M] (rev c0) + glxinfo + grep string server glx vendor string: SGI server glx version string: 1.4 client glx vendor string: Mesa Project and SGI client glx version string: 1.4 OpenGL vendor string: X.Org OpenGL renderer string: AMD VEGAM (DRM 3.26.0, 4.17.0-999-generic, LLVM 6.0.0) OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.2.0-devel OpenGL core profile shading language version string: 4.50 OpenGL version string: 3.1 Mesa 18.2.0-devel OpenGL shading language version string: 1.40 OpenGL ES profile version string: OpenGL ES 3.1 Mesa 18.2.0-devel OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 === + uname -a Linux rbb-ubu1804-6 4.15.0-23-generic #25-Ubuntu SMP Wed May 23 18:02:16 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux + xrandr + grep maximum Screen 0: minimum 320 x 200, current 3840 x 6480, maximum 8192 x 8192 + lspci + grep VGA 00:02.0 VGA compatible controller: Intel Corporation Iris Pro Graphics 580 (rev 09) + glxinfo + grep string server glx vendor string: SGI server glx version string: 1.4 client glx vendor string: Mesa Project and SGI client glx version string: 1.4 OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Iris Pro Graphics 580 (Skylake GT4e) OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.0.0-rc5 OpenGL core profile shading language version string: 4.50 OpenGL version string: 3.0 Mesa 18.0.0-rc5 OpenGL shading language version string: 1.30 OpenGL ES profile version string: OpenGL ES 3.2 Mesa 18.0.0-rc5 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776260 Title: Can't use three monitors properly; "xrandr: screen cannot be larger than 8192x8192" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1776260/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
