disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/nouveau/nouveau_bo.c
..
..
@@ -823,6 +823,15 @@
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 		if (ret == 0) {
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 			ret = nouveau_fence_new(chan, false, &fence);
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 			if (ret == 0) {
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+				/* TODO: figure out a better solution here
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+				 *
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+				 * wait on the fence here explicitly as going through
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+				 * ttm_bo_move_accel_cleanup somehow doesn't seem to do it.
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+				 *
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+				 * Without this the operation can timeout and we'll fallback to a
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+				 * software copy, which might take several minutes to finish.
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+				 */
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+				nouveau_fence_wait(fence, false, false);
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 				ret = ttm_bo_move_accel_cleanup(bo,
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 								&fence->base,
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 								evict, false,