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Commit 45737447 authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/radeon/kms: don't default display priority to high on rs4xx 

Seems to cause issues with the sound hardware.  Fixes kernel
bug 15982:
https://bugzilla.kernel.org/show_bug.cgi?id=15982



Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent c43ae476

drivers/gpu/drm/radeon/radeon_display.c

+4 −1
Original line number Diff line number Diff line
@@ -983,8 +983,11 @@ void radeon_update_display_priority(struct radeon_device *rdev) 
		/* set display priority to high for r3xx, rv515 chips

		 * this avoids flickering due to underflow to the

		 * display controllers during heavy acceleration.

		 * Don't force high on rs4xx igp chips as it seems to

		 * affect the sound card.  See kernel bug 15982.

		 */

		if (ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515))

		if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) &&

		    !(rdev->flags & RADEON_IS_IGP))

			rdev->disp_priority = 2;

		else

			rdev->disp_priority = 0;