Created attachment 133944 [details] Output of "glxinfo -s -l" In the game Crea (http://store.steampowered.com/app/280520 and https://www.humblebundle.com/store/crea), when opening the map to the full-window, non-overlay view on recent Mesa, the screen constantly flashes with a green hatching that makes the map impossible to make out. The flashing seems to occur between frames, since the snapshots taken by glretrace don't reflect the issue even though replaying a trace does. The problem first shows up with commit 147d7fb772 "st/mesa: add a winsys buffers list in st_context". The apitrace https://drive.google.com/file/d/0B-61xmxFzL-fTklGMzRiSERlTUE/view?usp=sharing shows the game loading and me bringing up the map; once the non-overlay map mode is reached is when the green flashing starts for me (when Mesa is at or past the aforementioned commit, including 17.2.0-rc5). I'm running Gentoo Linux on a Ryzen 1800X with a Radeon RX480, and Mesa was compiled against LLVM 4.0.1 (though I usually use Mesa and LLVM git), using gcc 6.4.0 for building everything. And I'm running Xorg 1.19.3 and kernel 4.12.7.
Charmaine, any ideas?
I don't see any issue on my RX580 with a recent Mesa/llvm/kernel can you confirm this now works for you? As a side note the game seems to use GL_EXT_gpu_shader4 which Mesa doesn't support so some shaders fail to compile. They don't seem to use anything special and should just use GLSL 1.30 instead.
I haven't updated my graphics stack in a while (I last rebuilt llvm and mesa on April 14th), but I'm still seeing the issue with the Crea trace. OpenGL renderer string: AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.23.0, 4.16.12-gentoo, LLVM 7.0.0) OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.1.0-devel (git-6a519a157b) I'm also running xorg-server 1.19.99.904 (RC4 of 1.20 iirc) and xf86-video-amdgpu 18.0.1, and for the amdgpu kernel module I have dc=0, dpm=1, aspm=1, runpm=1, and audio=0. I'll add my results once I've upgraded to the final xorg-server 1.20, current llvm and mesa git, and retry the trace.
I just replayed the trace I had created while running the 4.17.1 kernel, xorg-server 1.20, LLVM git 78d083b, and Mesa git a6b64d6dde, and I still see the same green flashing/cross-hatching. I've attached a screenshot showing the graphical corruption that occurs upon opening the world map, in case it can offer any clues or insights.
Created attachment 140368 [details] Crea screenshot showing visual corruption
I still can't reproduce. If you run apitrace with the following environment variable does it help? radeonsi_zerovram=true apitrace You can also launch steam and try crea directly: radeonsi_zerovram=true steam
I just tried replaying my trace using apitrace 8.0 and the flashing issue didn't occur. I suspect the underlying issue may have been fixed since I previously replayed the trace last June, as I'm currently running Mesa 19.0.3, LLVM 8.0.0, Xorg 1.20.4, and kernel 5.0.10.
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