tree 1fe421e55fc916dfa25f6fea3f821d1722444bcb
parent 1a3f28817e2a3f0be67ec8afa0cfd779adb5d41d
author izumi <izumi2005@soft.fujitsu.com> 1184670349 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1184692993 -0700

Fix the graphic corruption issue on IA64 machines

VGA console driver can misunderstand the current mode(Text/Graphic) under
"disable console blanking" setting.  When "disable console blank" is set
(blankinterval=0), "do_unblank_screen()" function returns without changing
"blank_state", and when "blank_state" is "blank_off", "do_blank_screen()
function returns without invoking sw->con_blank() function.  That's why VGA
console driver can misunderstand the current mode.

Signed-off-by: Nobuhiro Tachino <ntachino@redhat.com>
Signed-off-by: Taku Izumi <izumi2005@soft.fujitsu.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: "Luck, Tony" <tony.luck@intel.com>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>