[PATCH 07/18] fbcon: Avoid illegal display panning
From: "Antonino A. Daplas" <adaplas@gmail.com>
Date: 2005-12-10 06:19:14
Subsystem:
console subsystem, framebuffer layer, the rest · Maintainers:
Greg Kroah-Hartman, Helge Deller, Linus Torvalds
Avoid calls to fb_pan_display when driver is suspended or not in text mode. Signed-off-by: Antonino Daplas <redacted> --- drivers/video/console/fbcon.c | 25 +++++++++++++++++++------ 1 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 9678045..d089209 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c@@ -2136,8 +2136,12 @@ static int fbcon_switch(struct vc_data * scrollback_max = 0; scrollback_current = 0; - ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; - ops->update_start(info); + + 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); fbcon_clear_margins(vc, 0);
@@ -2736,8 +2740,12 @@ static void fbcon_modechanged(struct fb_ updatescrollmode(p, info, vc); scrollback_max = 0; scrollback_current = 0; - ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; - ops->update_start(info); + + 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)
@@ -2774,8 +2782,13 @@ static void fbcon_set_all_vcs(struct fb_ updatescrollmode(p, info, vc); scrollback_max = 0; scrollback_current = 0; - ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; - ops->update_start(info); + + 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) -------------------------------------------------------
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