[PATCH] vesafb: Drop blank hook

From: Bugzilla Bug 5351

"After resuming from S3 (suspended while in X), the LCD panel stays black .
 However, the laptop is up again, and I can SSH into it from another
machine.

I can get the panel working again, when I first direct video output to the
CRT output of the laptop, and then back to LCD (done by repeatedly hitting
Fn+F5 buttons on the Toshiba, which directs output to either LCD, CRT or
TV) None of this ever happened with older kernels."

This bug is due to the recently added vesafb_blank() method in vesafb.  It
works with CRT displays, but has a high incidence of problems in laptop
users.  Since CRT users don't really get that much benefit from hardware
blanking, drop support for this.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 0 insertions, 5 deletions

diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S
index 92f669470142..2ac40c8244c4 100644
--- a/arch/i386/boot/video.S
+++ b/arch/i386/boot/video.S
@@ -97,7 +97,6 @@
 #define PARAM_VESAPM_OFF        0x30
 #define PARAM_LFB_PAGES         0x32
 #define PARAM_VESA_ATTRIB       0x34
-#define PARAM_CAPABILITIES      0x36
 
 /* Define DO_STORE according to CONFIG_VIDEO_RETAIN */
 #ifdef CONFIG_VIDEO_RETAIN
@@ -234,10 +233,6 @@ mopar_gr:
         movw    18(%di), %ax
         movl    %eax, %fs:(PARAM_LFB_SIZE)
 
-# store mode capabilities
-        movl    10(%di), %eax
-        movl    %eax, %fs:(PARAM_CAPABILITIES)
-
 # switching the DAC to 8-bit is for <= 8 bpp only
         movw    %fs:(PARAM_LFB_DEPTH), %ax
         cmpw    $8, %ax