Can't use antialiasing because my gpu can only have 1 sample in storage images

[gera2342]

I have Intel UHD Graphics 620 and am using Mesa 26.0.0 drivers. It seems to be able to have only one sample bit in storage images.
vulkaninfo says:

	sampledImageColorSampleCounts: count = 5
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	sampledImageIntegerSampleCounts: count = 5
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	sampledImageDepthSampleCounts: count = 5
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	sampledImageStencilSampleCounts: count = 5
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	storageImageSampleCounts: count = 1
		SAMPLE_COUNT_1_BIT

So after gl_vidsdl.c:1841, image_format_properties.sampleCounts is also 1 and vkQuake doesn't use antialiasing. If I remove VK_IMAGE_USAGE_STORAGE_BIT, antialiasing works fine. Is it really needed that msaa_color_buffer is a storage image? Seems like it's needed since the game is noticeably laggy after I removed the storage bit.

[Novum]

I don't control the drivers. If it tells me there is no AA then there is no AA available for one reason or another. This hardware is ancient and out of driver support since ages on Windows (I assume this is Windows).

Your best bet is probably running Linux if that is an option. Mesa still actively supports UHD 620.

[gera2342]

I was running linux and mesa. This is probably my GPU's hardware limitation.