# PowerVR GM 9446: vkCmdDrawIndexed crash

**URL:** <https://forums.imgtec.com/t/powervr-gm-9446-vkcmddrawindexed-crash/3854>\
**Category:** Uncategorized\
**Created:** [December 7, 2023, 3:15pm UTC](https://forums.imgtec.com/t/powervr-gm-9446-vkcmddrawindexed-crash/3854 "2023-12-07T15:15:02Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![andreyogld3d](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.imgtec.com/andreyogld3d/32/255_2.png) [@andreyogld3d](https://forums.imgtec.com/u/andreyogld3d)\
**Post date:** [January 3, 2024, 10:29am UTC](https://forums.imgtec.com/t/powervr-gm-9446-vkcmddrawindexed-crash/3854/8 "2024-01-03T10:29:50Z")

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Hi @AlejandroC

> [@AlejandroC](#):
>
> I can see several _Invalid color format_ errors

I guess this problem on PowerVR’s driver side(IMGMapper ? ), this error also happens during calling [vkGetPhysicalDeviceSurfaceFormatsKHR](https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceSurfaceFormatsKHR.html) with correct parameters, we have no any Vulkan Validation errors, also the same problem on Google sample [android-vulkan-tutorials/tutorial05\_triangle/app/src/main/cpp/VulkanMain.cpp at master · googlesamples/android-vulkan-tutorials · GitHub](https://github.com/googlesamples/android-vulkan-tutorials/blob/master/tutorial05_triangle/app/src/main/cpp/VulkanMain.cpp#L210)

> [@AlejandroC](#):
>
> and one validation error _VkImageMemoryBarrier-newLayout-parameter_

I Fixed this error, but crash is still happens, may be driver can’t compile big pixel shader with multiple texture sampling (PCSS Shadows) (my message about PowerVR GE 8100)  
New Apk:  
[Vulkan\_crash\_PowerVR-GM-9446-debug\_new.apk](https://www.dropbox.com/scl/fi/zc1hu5fq6vtayg2i28u4u/Vulkan_crash_PowerVR-GM-9446-debug_new.apk?rlkey=chkp536h51i83zvw6ac5xfrsa&dl=)

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