From: Michel Dänzer <michel.daenzer@xxxxxxx>
Leo pointed out that drmmode_do_crtc_dpms wasn't getting called when
turning off an output with
xrandr --output <output> --off
This meant that the vblank sequence number and timestamp wouldn't be
saved before turning off the CRTC in this case.
Reported-by: Leo (Sunpeng) Li <sunpeng.li at amd.com>
(Ported from amdgpu commit ceeacb455cd058492a493aac954deab8455804b5)
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
src/drmmode_display.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 3117b8f18..cf1f6e809 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -361,8 +361,7 @@ drmmode_crtc_dpms(xf86CrtcPtr crtc, int mode)
/* Disable unused CRTCs */
if (!crtc->enabled || mode != DPMSModeOn) {
- drmmode_crtc_wait_pending_event(drmmode_crtc, pRADEONEnt->fd,
- drmmode_crtc->flip_pending);
+ drmmode_do_crtc_dpms(crtc, DPMSModeOff);
drmModeSetCrtc(pRADEONEnt->fd, drmmode_crtc->mode_crtc->crtc_id,
0, 0, 0, NULL, 0, NULL);
drmmode_fb_reference(pRADEONEnt->fd, &drmmode_crtc->fb, NULL);
--
2.18.0
