Bug 111151 - vkGetRandROutputDisplayEXT returns VK_SUCCESS on failure
Summary: vkGetRandROutputDisplayEXT returns VK_SUCCESS on failure
Status: RESOLVED NOTABUG
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Vulkan/Common (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: mesa-dev
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Reported: 2019-07-16 21:28 UTC by Drew DeVault
Modified: 2019-07-17 07:58 UTC (History)
5 users (show)

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Description Drew DeVault 2019-07-16 21:28:34 UTC 
If the output does not have a CONNECTOR_ID atom, then this function fails (giving back a 0 VkDisplayKHR) but it returns VK_SUCCESS nonetheless.

Passing this VkDisplayKHR into vkAcquireXlibDisplayEXT later then segfaults mesa.
Comment 1 Lionel Landwerlin 2019-07-17 07:58:30 UTC 
There is an MR opened about this : https://gitlab.freedesktop.org/mesa/mesa/merge_requests/385

Unfortunately we need a spec update first as there is no error code defined for this function to fail. There is an issue opened about this on the khronos group gitlab.

I think the behavior of the driver follows the spec, so I will close.
When the spec is updated we'll update the driver.

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