mesa-20.0.5

[Bruce Dubbs]

New point version.

[Bruce Dubbs]

Mesa 20.0.5 Release Notes / 2020-04-22

Mesa 20.0.5 is a bug fix release which fixes bugs found since the 20.0.4 release.

Mesa 20.0.5 implements the OpenGL 4.6 API, but the version reported by glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) / glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being used. Some drivers don't support all the features required in OpenGL 4.6. OpenGL 4.6 is only available if requested at context creation. Compatibility contexts may report a lower version depending on each driver.

Mesa 20.0.5 implements the Vulkan 1.2 API, but the version reported by the apiVersion property of the VkPhysicalDeviceProperties struct depends on the particular driver being used. Bug fixes

• nir: nir_lower_returns can't handle nested loops
• Graphic artifacts with Mesa 20.0.4 on intel HD 510 GPU
• Mesa 20 regression makes Lightsprint demos crash
• Build Fails with Clang Shared Library
• dri_common.h:58:8: error: unknown type name 'GLXDRIdrawable'
• Graphical glitches on Intel Graphics when Xorg started on Iris driver
• SIGSEGV src/compiler/glsl/ast_function.cpp:53
• manywin aborts with "i965: Failed to submit batchbuffer: Invalid argument"
• manywin aborts with "i965: Failed to submit batchbuffer: Invalid argument"
• manywin aborts with "i965: Failed to submit batchbuffer: Invalid argument"
• manywin aborts with "i965: Failed to submit batchbuffer: Invalid argument"
• v3d: transform feedback issue
• radv: dEQP- VK.binding_model.descriptorset_random.sets4.noarray.ubolimitlow.sbolimitlow.imglimitlow. noiub.comp.noia.0 segfault
• radv: RAVEN fails dEQP-VK.pipeline.timestamp.misc_tests.reset_query_before_copy
• enable storageBuffer16BitAccess feature in radv for SI and CIK
• Weston drm-backend.so seems to fail with Mesa master and LIBGL_ALWAYS_SOFTWARE=1
• vaapi bob deinterlacer produces wrong output height on AMD

[Douglas R. Reno]

Note that Mesa depends on libzstd from LFS.

Adding in the 'iris' driver caused a minor build size increase for me. My Skylake system should be capable of using it too.

[Douglas R. Reno]

The installed files will need to be modified to add iris_dri.so and the list of Gallium drivers (the explanation, not the actual list itself) will need to be modified as well

[Douglas R. Reno]

I'm going to have to revert the iris driver because it currently causes any application that uses GL to crash. See ​http://lists.linuxfromscratch.org/pipermail/blfs-dev/2020-April/037385.html for more details. I'll leave a note in the book about it too. We should most certainly revisit it at some point though... I can't see myself purchasing another system just to debug this one problem though.

[Douglas R. Reno]

Fixed at r23002

[Bruce Dubbs]

Milestone renamed

[Bruce Dubbs]

Milestone renamed