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 <alexdeucher at gmail.com>
Cc: stable at kernel.org
---
drivers/gpu/drm/radeon/radeon_display.c | 5 ++++-
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 bd44f88..073ec61 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -976,8 +976,11 @@ 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;
--
1.5.6.3
