| Bug ID | 97338 |
|---|---|
| Summary | Black squares in the Spec Ops: The Line chapter select screen |
| Product | Mesa |
| Version | git |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | daniel@constexpr.org |
| QA Contact | dri-devel@lists.freedesktop.org |
Created attachment 125773 [details] Screenshot showing the bug (frame 89) With radeonsi the chapter select screen in Spec Ops: The Line has black squares that should not be there. I have not observed this bug elsewhere in the game (but haven't played through the whole game using radeonsi). The number of squares increases with a higher texture quality setting. The number and positions of the squares only changes when the camera moves. The chapter select screen renders fine using the amdgpu-pro driver - tested with version 16.30.3.306809 running on the upstream amdgpu kernel module. Apitrace: http://constexpr.org/tmp/SpecOps-radeonsi.trace.xz (70 MiB) This bug seems to be caused by pixels with NaN values that make it into the framebuffer and are extended to larger squares by a later post-processing pass: After draw call 1441551, pixel (875, 573) of the COLOR0 attachment has RGB components set to NaN. GPU: R9 380X (tonga) Kernel: 4.7.0-gentoo Mesa: git-561fd22 LLVM: r278309
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