[Bug 94987] fullscreen flickering with google-chrome (youtube and not only)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94987

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
Can you please try (kernel):

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6ce2c31..4caccd2 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3926,12 +3926,8 @@ out:
         * object is now coherent at its new cache level (with respect
         * to the access domain).
         */
-       if (obj->cache_dirty &&
-           obj->base.write_domain != I915_GEM_DOMAIN_CPU &&
-           cpu_write_needs_clflush(obj)) {
-               if (i915_gem_clflush_object(obj, true))
-                       i915_gem_chipset_flush(obj->base.dev);
-       }
+       if (i915_gem_clflush_object(obj, true))
+               i915_gem_chipset_flush(obj->base.dev);

        return 0;
 }

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