modesetting: Track the CRTC's DPMS mode.

We don't want to try to vblank synchronize to monitors which are off.

In order to handle that properly, we need to know the CRTC's DPMS mode.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Jason Ekstrand <jason.ekstrand@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>

2 files changed, 6 insertions, 12 deletions

diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c
index 8d9bf8b2e..fd5cf2b28 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.c
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.c
@@ -193,18 +193,8 @@ drmmode_ConvertToKMode(ScrnInfoPtr scrn,
 static void
 drmmode_crtc_dpms(xf86CrtcPtr crtc, int mode)
 {
-#if 0
-    xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
-
-//      drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
-//      drmmode_ptr drmmode = drmmode_crtc->drmmode;
-
-    /* bonghits in the randr 1.2 - uses dpms to disable crtc - bad buzz */
-    if (mode == DPMSModeOff) {
-//              drmModeSetCrtc(drmmode->fd, drmmode_crtc->mode_crtc->crtc_id,
-//                             0, 0, 0, NULL, 0, NULL);
-    }
-#endif
+    drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
+    drmmode_crtc->dpms_mode = mode;
 }
 
 #if 0
@@ -347,6 +337,9 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
 
         if (crtc->scrn->pScreen)
             xf86CrtcSetScreenSubpixelOrder(crtc->scrn->pScreen);
+
+        crtc->funcs->dpms(crtc, DPMSModeOn);
+
         /* go through all the outputs and force DPMS them back on? */
         for (i = 0; i < xf86_config->num_output; i++) {
             xf86OutputPtr output = xf86_config->output[i];
diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.h b/hw/xfree86/drivers/modesetting/drmmode_display.h
index 0983cf117..66d0ca260 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.h
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.h
@@ -86,6 +86,7 @@ typedef struct {
     drmmode_ptr drmmode;
     drmModeCrtcPtr mode_crtc;
     uint32_t vblank_pipe;
+    int dpms_mode;
     struct dumb_bo *cursor_bo;
     Bool cursor_up;
     unsigned rotate_fb_id;