fbcon: delay screen update when setting the mode of all consoles
If the current framebuffer console is rotated (rotate != 0), doing an
"fbset -a" will corrupt the current console. Fix by updating the current
console only after all non-visible consoles have been updated.
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index c8b4ae6..19dfdfbd 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2849,7 +2849,7 @@
struct fbcon_ops *ops = info->fbcon_par;
struct vc_data *vc;
struct display *p;
- int i, rows, cols;
+ int i, rows, cols, fg = -1;
if (!ops || ops->currcon < 0)
return;
@@ -2860,34 +2860,23 @@
registered_fb[con2fb_map[i]] != info)
continue;
+ if (CON_IS_VISIBLE(vc)) {
+ fg = i;
+ continue;
+ }
+
p = &fb_display[vc->vc_num];
set_blitting_type(vc, info);
var_to_display(p, &info->var, info);
- cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres);
- rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
+ cols = FBCON_SWAP(p->rotate, info->var.xres, info->var.yres);
+ rows = FBCON_SWAP(p->rotate, info->var.yres, info->var.xres);
cols /= vc->vc_font.width;
rows /= vc->vc_font.height;
vc_resize(vc, cols, rows);
-
- if (CON_IS_VISIBLE(vc)) {
- updatescrollmode(p, info, vc);
- scrollback_max = 0;
- scrollback_current = 0;
-
- if (!fbcon_is_inactive(vc, info)) {
- ops->var.xoffset = ops->var.yoffset =
- p->yscroll = 0;
- ops->update_start(info);
- }
-
- fbcon_set_palette(vc, color_table);
- update_screen(vc);
- if (softback_buf)
- fbcon_update_softback(vc);
- }
}
- ops->p = &fb_display[ops->currcon];
+ if (fg != -1)
+ fbcon_modechanged(info);
}
static int fbcon_mode_deleted(struct fb_info *info,