[PATCH] fbcon: Fix scrollback with logo issue immediately after boot

[PATCH] fbcon: Fix scrollback with logo issue immediately after boot

[Jordan Crouse]

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Greeting folks -

Sending on a patch against latest git that attempts to fix an issue with
the scrollback buffer in the fbcon immediately after boot.    As always,
comments welcome.

Regards,
Jordan

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PATCH: Fix scrollback with logo issue immediately after boot.

From: David Hollister <david.hollister@amd.com>

After the system boots with the logo, if the first action is a
scrollback, the screen may become garbled.  This patch ensures
that the softback_curr value is updated along with softback_in
following the scrollback.

Signed-off-by: David Hollister <david.hollister@amd.com>
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
---

 drivers/video/console/fbcon.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index ca02071..953eb8c 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2631,7 +2631,7 @@ static int fbcon_scrolldelta(struct vc_d
 					scr_memcpyw((u16 *) q, (u16 *) p,
 						    vc->vc_size_row);
 				}
-				softback_in = p;
+				softback_in = softback_curr = p;
 				update_region(vc, vc->vc_origin,
 					      logo_lines * vc->vc_cols);
 			}

Re: [PATCH] fbcon: Fix scrollback with logo issue immediately after boot

[Antonino A. Daplas]

Jordan Crouse wrote:
> Greeting folks -
> 
> Sending on a patch against latest git that attempts to fix an issue with
> the scrollback buffer in the fbcon immediately after boot.    As always,
> comments welcome.

Looks sane.  Does this patch fix the problem mentioned here?

http://marc.theaimsgroup.com/?l=linux-kernel&m=114821885109864&w=2

Tony




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Re: [PATCH] fbcon: Fix scrollback with logo issue immediately after boot

[David Hollister]

Hi Antonino,

That sounds exactly like what I was seeing.  Oddly enough, as that post
explains, the problem did not manifest at all resolutions.  The short
answer is yes, I believe this patch will fix the issue referenced below.

David

On Thu, 2006-05-25 at 08:35 +0800, Antonino A. Daplas wrote:
> Jordan Crouse wrote:
> > Greeting folks -
> > 
> > Sending on a patch against latest git that attempts to fix an issue with
> > the scrollback buffer in the fbcon immediately after boot.    As always,
> > comments welcome.
> 
> Looks sane.  Does this patch fix the problem mentioned here?
> 
> http://marc.theaimsgroup.com/?l=linux-kernel&m=114821885109864&w=2
> 
> Tony
> 
> 
> 




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