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authorBill Nottingham <notting@redhat.com>2005-05-01 08:59:07 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-01 08:59:07 -0700
commita40920b42ae232fac514cc4a1eb92996114af340 (patch)
tree07209affc6f1a02c79d07c8aece7d510a2541049 /drivers/video
parent127144df4ce817ad648af15a3983c8d52aacf670 (diff)
downloadlinux-a40920b42ae232fac514cc4a1eb92996114af340.tar.gz
[PATCH] vgacon: set vc_hi_font_mask correctly
When allocating a new VC with vgacon_init(), the font is shared across all
the VGA consoles.  However, the font mask was always set to the default
value of zero in visual_init(), even if we were using 512 character fonts
at the time.

Moreover, code in vgacon.c:vga_do_font_op() didn't reset the mask if the
console driver thinks it's already in 512 character mode.  This means that
to *fix* it, you'd actually have to take the console out of 512 character
mode and then set it back.

The attached sets vc_hi_font_mask in vgacon_init() for any new consoles
opened if the vgacon driver is already in 512 character mode, solving this.

This bug goes back to 2.4.18 at least, probably earlier.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/console/vgacon.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 7d1ae06667c6..bcf59b28a14f 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -337,6 +337,8 @@ static void vgacon_init(struct vc_data *c, int init)
 	c->vc_scan_lines = vga_scan_lines;
 	c->vc_font.height = vga_video_font_height;
 	c->vc_complement_mask = 0x7700;
+	if (vga_512_chars)
+		c->vc_hi_font_mask = 0x0800;
 	p = *c->vc_uni_pagedir_loc;
 	if (c->vc_uni_pagedir_loc == &c->vc_uni_pagedir ||
 	    !--c->vc_uni_pagedir_loc[1])