From: Michel Dänzer <michel.daenzer@xxxxxxx>
Fixes display intermittently blanking when a modeset is used for unflip.
(Ported from radeon commit 3ff29e5a14451916bc66b4e0028e9a317f0723f8)
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
src/amdgpu_present.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/amdgpu_present.c b/src/amdgpu_present.c
index 364619084..5a345cb0a 100644
--- a/src/amdgpu_present.c
+++ b/src/amdgpu_present.c
@@ -351,6 +351,7 @@ amdgpu_present_unflip(ScreenPtr screen, uint64_t event_id)
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
struct amdgpu_present_vblank_event *event;
PixmapPtr pixmap = screen->GetScreenPixmap(screen);
+ int old_fb_id;
int i;
if (!amdgpu_present_check_unflip(scrn))
@@ -374,7 +375,7 @@ modeset:
/* info->drmmode.fb_id still points to the FB for the last flipped BO.
* Clear it, drmmode_set_mode_major will re-create it
*/
- drmModeRmFB(pAMDGPUEnt->fd, info->drmmode.fb_id);
+ old_fb_id = info->drmmode.fb_id;
info->drmmode.fb_id = 0;
for (i = 0; i < config->num_crtc; i++) {
@@ -391,6 +392,7 @@ modeset:
drmmode_crtc->need_modeset = TRUE;
}
+ drmModeRmFB(pAMDGPUEnt->fd, old_fb_id);
present_event_notify(event_id, 0, 0);
info->drmmode.present_flipping = FALSE;
}
--
2.11.0
