| Bug ID | 103486 |
|---|---|
| Summary | Tonga DC vblank_mode=0 not working as expected fullscreen |
| Product | DRI |
| Version | DRI git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | adf.lists@gmail.com |
R9285, I notice that on both drm-next-4.15-dc and amd-staging-drm-next, when using DC, vblank_mode=0 works windowed but not properly full screen. Tried forcing TearFree from auto to off no difference. There is no tearing where it would be expected - but it's not like it's just being ignored, a bench mark test will cap fps at 2X refresh rate rather than 1X. Maybe this is expected? It doesn't happen with a months older DC kernel I have and looking at DC benches on Phoronix I don't see any fps cap.
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