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-rw-r--r--linux-core/drm_crtc.c10
-rw-r--r--linux-core/intel_fb.c29
2 files changed, 31 insertions, 8 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c
index be491908..e0c85cef 100644
--- a/linux-core/drm_crtc.c
+++ b/linux-core/drm_crtc.c
@@ -1110,13 +1110,17 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info,
/* We should be able to check here if the fb has the same properties
* and then just flip_or_move it */
if (crtc->fb != fb)
- changed = true;
+ flip_or_move = true;
if (crtc_info->x != crtc->x || crtc_info->y != crtc->y)
flip_or_move = true;
- if (new_mode && !drm_mode_equal(new_mode, &crtc->mode))
+ if (new_mode && !drm_mode_equal(new_mode, &crtc->mode)) {
+ DRM_DEBUG("modes are different\n");
+ drm_mode_debug_printmodeline(dev, &crtc->mode);
+ drm_mode_debug_printmodeline(dev, new_mode);
changed = true;
+ }
list_for_each_entry(output, &dev->mode_config.output_list, head) {
save_crtcs[count++] = output->crtc;
@@ -1161,6 +1165,8 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info,
}
drm_disable_unused_functions(dev);
} else if (flip_or_move) {
+ if (crtc->fb != fb)
+ crtc->fb = fb;
crtc->funcs->mode_set_base(crtc, crtc_info->x, crtc_info->y);
}
diff --git a/linux-core/intel_fb.c b/linux-core/intel_fb.c
index e33494c6..931bc1b6 100644
--- a/linux-core/intel_fb.c
+++ b/linux-core/intel_fb.c
@@ -228,6 +228,7 @@ static int intelfb_set_par(struct fb_info *info)
struct drm_output *output = NULL;
struct fb_var_screeninfo *var = &info->var;
int found = 0;
+ int changed = 0;
DRM_DEBUG("\n");
@@ -310,11 +311,22 @@ static int intelfb_set_par(struct fb_info *info)
}
/* re-attach fb */
- if (!par->crtc->fb)
+ if (!par->crtc->fb) {
par->crtc->fb = par->fb;
+ changed = 1;
+ }
- if (!drm_crtc_set_mode(par->crtc, drm_mode, var->xoffset, var->yoffset))
- return -EINVAL;
+ if (par->crtc->x != var->xoffset || par->crtc->y != var->yoffset)
+ changed = 1;
+
+ drm_mode_debug_printmodeline(dev, drm_mode);
+ drm_mode_debug_printmodeline(dev, &par->crtc->mode);
+ if (!drm_mode_equal(drm_mode, &par->crtc->mode))
+ changed = 1;
+
+ if (changed)
+ if (!drm_crtc_set_mode(par->crtc, drm_mode, var->xoffset, var->yoffset))
+ return -EINVAL;
return 0;
}
@@ -469,16 +481,21 @@ static int intelfb_pan_display(struct fb_var_screeninfo *var,
{
struct intelfb_par *par = info->par;
struct drm_crtc *crtc = par->crtc;
-
+ int changed = 0;
DRM_DEBUG("\n");
/* TODO add check size and pos*/
+ if (par->crtc->x != var->xoffset || par->crtc->y != var->yoffset)
+ changed = 1;
/* re-attach fb */
- if (!crtc->fb)
+ if (!crtc->fb) {
crtc->fb = par->fb;
+ changed = 1;
+ }
- drm_crtc_set_mode(crtc, &crtc->mode, var->xoffset, var->yoffset);
+ if (changed)
+ drm_crtc_set_mode(crtc, &crtc->mode, var->xoffset, var->yoffset);
info->var.xoffset = var->xoffset;
info->var.yoffset = var->yoffset;