Bug 94180 - Vulkan: severe flicker on skl
Summary: Vulkan: severe flicker on skl
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Vulkan/intel (show other bugs)
Version: git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Intel 3D Bugs Mailing List
QA Contact: Intel 3D Bugs Mailing List
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-02-16 19:05 UTC by Grazvydas Ignotas
Modified: 2016-02-21 21:38 UTC (History)
0 users

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Attachments
screenshot (3.43 KB, image/png)
2016-02-16 19:05 UTC, Grazvydas Ignotas 		Details
Xorg log (22.20 KB, text/plain)
2016-02-16 19:06 UTC, Grazvydas Ignotas 		Details
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Description Grazvydas Ignotas 2016-02-16 19:05:52 UTC 
Created attachment 121790 [details]
screenshot

As invited by the Vulkan announcement, filling (probably) the first Vulkan bug here.
The demos from https://github.com/KhronosGroup/Vulkan-LoaderAndValidationLayers flicker on my system, including the triangle one.

Mesa 11.2.0-devel (git-0a3324e) (vulkan branch)
Intel(R) HD Graphics 530 (Skylake GT2)
kernel: 4.4.1
Comment 1 Grazvydas Ignotas 2016-02-16 19:06:43 UTC 
Created attachment 121791 [details]
Xorg log
Comment 2 Grazvydas Ignotas 2016-02-20 01:02:40 UTC 
b63e28c0e1275761f7effe4b0a8202735ff72291 almost solved this, only the lunarg 'tri' example flickers for me now (VulkanSDK examples/ , same as from Vulkan-LoaderAndValidationLayers it seems).
Comment 3 Jason Ekstrand 2016-02-21 21:38:01 UTC 
This should be fixed now by b63e28c.  The remaining issue with the LunarG triangle demo is an issue with the demo itself.  It constant renders into and presents the same buffer even though our driver requires that you have at least two.  The result is that it's effectively using front-buffer rendering which tears.

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