[PATCH xf86-video-amdgpu] Do not push the CM_GAMMA_LUT property values in drmmode_crtc_cm_init

Michel Dänzer michel at daenzer.net
Fri Aug 31 10:45:01 UTC 2018


From: Michel Dänzer <michel.daenzer at amd.com>

The crtc->gamma_lut values aren't initialized yet at this point, and
the property values are pushed again from drmmode_setup_colormap
anyway.

Fixes intermittent flicker due to random gamma LUT values during server
startup.

Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/drmmode_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 46be29d07..6ef6a98e2 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -1863,7 +1863,7 @@ static void drmmode_crtc_cm_init(int drm_fd, xf86CrtcPtr crtc)
 		drmmode_crtc->ctm->matrix[8] = (uint64_t)1 << 32;
 
 	/* Push properties to reset properties currently in hardware */
-	for (i = 0; i < CM_DEGAMMA_LUT_SIZE; i++) {
+	for (i = 0; i < CM_GAMMA_LUT; i++) {
 		if (drmmode_crtc_push_cm_prop(crtc, i))
 			xf86DrvMsg(crtc->scrn->scrnIndex, X_ERROR,
 				   "Failed to initialize color management "
-- 
2.18.0



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