Log blanking that goes from FB_BLANK_UNBLANK to itself at debug. It turns
out Xorg likes to habitually unblank when already unblanked and this can
fill up logs over a long period of time.
Signed-off-by: Mike Gerow <gerow@xxxxxxxxxx>
---
drivers/video/fbdev/udlfb.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index 6a3c353de7c3..611de916abcf 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -1105,8 +1105,17 @@ static int dlfb_ops_blank(int blank_mode, struct fb_info *info)
char *bufptr;
struct urb *urb;
- pr_info("/dev/fb%d FB_BLANK mode %d --> %d\n",
- info->node, dev->blank_mode, blank_mode);
+ /*
+ * Xorg likes to habitually unblank when already unblanked so log these
+ * kinds of events at debug.
+ */
+ if (dev->blank_mode == FB_BLANK_UNBLANK &&
+ blank_mode == FB_BLANK_UNBLANK)
+ pr_debug("/dev/fb%d FB_BLANK mode %d --> %d (FB_BLANK_UNBLANK --> FB_BLANK_UNBLANK)\n",
+ info->node, FB_BLANK_UNBLANK, FB_BLANK_UNBLANK);
+ else
+ pr_info("/dev/fb%d FB_BLANK mode %d --> %d\n",
+ info->node, dev->blank_mode, blank_mode);
if ((dev->blank_mode == FB_BLANK_POWERDOWN) &&
(blank_mode != FB_BLANK_POWERDOWN)) {
--
2.13.0.219.gdb65acc882-goog
--
Mike Gerow
gerow@xxxxxxxxxx
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