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-rw-r--r--drivers/gpu/drm/radeon/radeon_display.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index da85cad1152..1006549d157 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;