From 45737447ed160faaba036c0709226bf9057f7b72 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 20 May 2010 11:26:11 -0400 Subject: [PATCH] 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: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_display.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index da85cad1152b..1006549d1570 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -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;