<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - screen corruption using SNA and TearFree on Intel GeminiLake" href="https://bugs.freedesktop.org/show_bug.cgi?id=105720#c8">Comment # 8</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - screen corruption using SNA and TearFree on Intel GeminiLake" href="https://bugs.freedesktop.org/show_bug.cgi?id=105720">bug 105720</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Towards the end of the log, we see a sequence like [ 55.623] sna_poly_fill_rect: fallback - fbPolyFillRect [ 55.623] sna_gc_move_to_gpu(0x55e0f751c330) [ 55.623] sna_change_window_attributes [ 55.623] sna_change_window_attributes: flushing background pixmap [ 55.623] sna_validate_pixmap: target bpp=32, source bpp=32 [ 55.623] sna_validate_gc(0x55e0f6f690c0) changes=7fffff, previous serial=80000000, drawable=247 [ 55.623] sna_validate_gc: recomputing clip [ 55.623] sna_validate_gc: composite clip=1x[(3090, 1211), (3106, 1227)] [0x55e0f73a4f30] [ 55.623] sna_poly_fill_rect(n=1, PlaneMask: ffffffff (solid 1), solid fill: 0 [style=1, tileIsPixel=0], alu=3) [ 55.623] sna_poly_fill_rect_extents: [0] = (0, 0)x(16, 16) [ 55.623] sna_poly_fill_rect: extents(3090, 1211), (3106, 1227), flags=1 [ 55.623] sna_poly_fill_rect: dropping last-cpu hint [ 55.623] sna_drawable_use_bo pixmap=8, box=((3090, 1211), (3106, 1227)), flags=9... [ 55.623] sna_drawable_use_bo: pinned, never REPLACES [ 55.623] sna_drawable_use_bo: flush=0, shm=0, cpu=0 => flags=9 [ 55.623] sna_drawable_use_bo: use GPU fast path (all-damaged) [ 55.623] sna_drawable_use_bo: applying move-to-gpu override [ 55.623] sna_pixmap_discard_shadow_damage: discarding region 1x[(3090, 1211), (3106, 1227)] from damage 1x[(2989, 1209], (3106, 1229)] [ 55.623] wait_for_shadow: enabled? 1 waiting? 0, flags=3, flips=2, pixmap=8 [front?=1], handle=10, shadow=39 [ 55.626] wait_for_shadow: 2 flips still pending, shadow flip_active=2 [ 55.626] wait_for_shadow: after waiting 2 flips outstanding, flip_active=2 [ 55.626] kgem_create_2d(5760x2160, bpp=32, tiling=1, exact=1, inactive=0, cpu-mapping=0, gtt-mapping=0, scanout?=1, prime?=0, temp?=0) [ 55.626] kgem_surface_size: tile_width=512, tile_height=8 => aligned pitch=23040, height=2160 [ 55.626] 1:from scanout: pitch=23040, tiling=1, handle=11, id=447 [ 55.626] wait_for_shadow: replacing still-attached GPU bo handle=1, flips=2 [ 55.626] wait_for_shadow: copying existing GPU damage: 4x(0, 0), (5760, 2160) [ 55.626] gen9_render_copy_boxes (0, 0)->(0, 0) x 4, alu=3, flags=0, self-copy=0, overlaps? 0 The tricky part here is sna_pixmap_discard_shadow_damage. So the idea behind the earlier test was to remove that discard and force the full repaint. It's still the best idea I have as to where it goes wrong...</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>