On Tue, Jan 28, 2020 at 11:10 AM Daniel Vetter <daniel.vetter@xxxxxxxx> wrote: > > Per at least one tester this is enough magic to recover the regression > introduced for some people (but not all) in > > commit b8e2b0199cc377617dc238f5106352c06dcd3fa2 > Author: Peter Rosin <peda@xxxxxxxxxx> > Date: Tue Jul 4 12:36:57 2017 +0200 > > drm/fb-helper: factor out pseudo-palette > > which for radeon had the side-effect of refactoring out a seemingly > redudant writing of the color palette. > > 10ms in a fairly slow modeset path feels like an acceptable form of > duct-tape, so maybe worth a shot and see what sticks. > > Cc: Alex Deucher <alexander.deucher@xxxxxxx> > Cc: Michel Dänzer <michel.daenzer@xxxxxxx> > References: https://bugzilla.kernel.org/show_bug.cgi?id=198123 > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> Works for me. Applied. Thanks! Alex > --- > drivers/gpu/drm/radeon/radeon_display.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c > index 354756e00fe1..d07c7db0c815 100644 > --- a/drivers/gpu/drm/radeon/radeon_display.c > +++ b/drivers/gpu/drm/radeon/radeon_display.c > @@ -127,6 +127,8 @@ static void dce5_crtc_load_lut(struct drm_crtc *crtc) > > DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); > > + msleep(10); > + > WREG32(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset, > (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) | > NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS))); > -- > 2.24.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
