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| author | Thomas Gummerer <[email protected]> | 2015-05-14 07:16:39 +0000 |
|---|---|---|
| committer | Jani Nikula <[email protected]> | 2015-05-19 07:28:34 +0000 |
| commit | 54da691deb123c045259ebf4f5c67381244f58f1 (patch) | |
| tree | 030b2b2fa563b62fdc47ea15ac330ace88ec9429 /net/switchdev/switchdev.c | |
| parent | Linux 4.1-rc4 (diff) | |
| download | kernel-54da691deb123c045259ebf4f5c67381244f58f1.tar.gz kernel-54da691deb123c045259ebf4f5c67381244f58f1.zip | |
drm/i915: fix screen flickering
Commit c9f038a1a592 ("drm/i915: Don't assume primary & cursor are
always on for wm calculation (v4)") fixes a null pointer dereference.
Setting the primary and cursor panes to false in
ilk_compute_wm_parameters to false does however give the following
errors in the kernel log and causes the screen to flicker.
[ 101.133716] [drm:intel_set_cpu_fifo_underrun_reporting [i915]]
*ERROR* uncleared fifo underrun on pipe A
[ 101.133725] [drm:intel_cpu_fifo_underrun_irq_handler [i915]]
*ERROR* CPU pipe A FIFO underrun
Always setting the panes to enabled fixes this error.
Helped-by: Matt Roper <[email protected]>
Signed-off-by: Thomas Gummerer <[email protected]>
Reviewed-by: Matt Roper <[email protected]>
Tested-by: Mario Kleiner <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions