[Linux-fbdev-devel] [PATCH] savagefb: fix blanking mode on CRT display

[Krzysztof H. <krz...@po...>]

From: Krzysztof Helt <krz...@wp...>

Fix wrong bit mask for blanking register.  Due to the error a CRT monitor blanks
off due to wrong frequency (out of range) instead of PM signal (vertical and horizontal
frequencies cut off).

Signed-off-by: Krzysztof Helt <krz...@wp...>
---
Just compare the mask with bits set in the switch(blank) clause below the changed line.

diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index 37b135d..5ad7c79 100644
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -1565,7 +1565,7 @@ static int savagefb_blank(int blank, struct fb_info *info)
 		vga_out8(0x3c5, sr8, par);
 		vga_out8(0x3c4, 0x0d, par);
 		srd = vga_in8(0x3c5, par);
-		srd &= 0x03;
+		srd &= 0x50;
 
 		switch (blank) {
 		case FB_BLANK_UNBLANK:

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