| Summary: | [HSW]Piglit spec_OpenGL_1.1_read-front_samples=2 fails with compositer | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | lu hua <huax.lu> |
| Component: | Drivers/DRI/i965 | Assignee: | Ian Romanick <idr> |
| Status: | VERIFIED FIXED | QA Contact: | Intel 3D Bugs Mailing List <intel-3d-bugs> |
| Severity: | normal | ||
| Priority: | medium | CC: | xunx.fang |
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
This seems to be a duplicate of bug #74005. The patch I attached there for waffle seems to fix all the failing cases reported here too. It randomly fails on latest Mesa master branch.
./bin/read-front -samples=2 -auto
Probe color at (0,0)
Expected: 0.000000 0.000000 1.000000
Observed: 0.003922 0.000000 0.133333
Probe color at (0,75)
Expected: 0.000000 1.000000 0.000000
Observed: 0.003922 0.000000 0.062745
PIGLIT: {'result': 'fail' }
The last few piglit runs since fixing the MCS problem haven't had any MSAA read-front failures for me. This might be fixed. I can't reproduce this on Haswell, as Eric said, this is probably already fixed. lu hua, can you still reproduce? Run 30 cycles, it works well. Close it. Verified.Fixed. |
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System Environment: -------------------------- Arch: x86_64 Platform: Haswell Libdrm: (master)libdrm-2.4.46-2-gfea5408098c3c3057958e85ea9d7146f0b08749e Mesa: (master)0acf3a8407fbeaa9d61731ce83fbe6de529e303c Xserver: (master)xorg-server-1.14.99.1-148-gd5ebe20f9ba9569351c4a41449866679fd60ba45 Xf86_video_intel:(master)2.21.12-46-g74dd10d252df2d826b6db5da7e53bd7c5d76dec0 Cairo: (master)03c81d414d4edb710c91f96ddb7dbf73e5432583 Libva: (staging)d4988142a3f2256e38c5c5cdcdfc1b4f5f3c1ea9 Libva_intel_driver:(staging)7783b945824c9c01b415ca7b72c2d9463c8ae40b Kernel: (drm-intel-nightly) ae5779ebae3a73ca4d18118a4b8600e4a36aaea7 Bug detailed description: ------------------------- It fails with compositer, and works well with raw X. It happens on haswell with mesa master branch and 9.2 branch. Following cases also has this issue: spec_EGL_NOK_swap_region_basic spec_OpenGL_1.1_read-front spec_OpenGL_1.1_read-front_samples=4 spec_OpenGL_1.1_read-front_samples=6 spec_OpenGL_1.1_read-front_samples=8 output: Probe color at (0,0) Expected: 0.000000 0.000000 1.000000 Observed: 0.078431 0.133333 0.219608 Probe color at (0,75) Expected: 0.000000 1.000000 0.000000 Observed: 0.070588 0.125490 0.211765 PIGLIT: {'result': 'fail' } Reproduce steps: ---------------------------- 1. xinit 2. gnome-session 3. ./read-front -auto -samples=2