lkml.org 
[lkml]   [2013]   [Nov]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] efi earlyprintk fix
On 11/04/13 at 08:58pm, Dave Young wrote:
> On 11/04/13 at 10:37am, Matt Fleming wrote:
> > On Sun, 03 Nov, at 08:16:47PM, Dave Young wrote:
> > >
> > > there's below one line shift problem:
> > >
> > > ACPI=0xdabfe000 ACPI 2.0=0xdabfe014 SMBIOS=0xdaa9e000
> > > [ 0.000000] efi:
> > >
> > > In fact check efi_y and the lfb_height should be compared at the begin of the
> > > loop of early_efi_write
> >
> > Hmm... this is interesting. I can't produce this on any of my machines.
> > Where did you see this? What hardware?
>
> It's my laptop Thinkpad T420, the screen scolls very fast, I use boot_delay=500
> to verify it with my patch for moving boot_delay param an early param.
>
> Even without boot_delay, there's always a line at bottom with only the prefix:
> "efi:"

I will do further debug if I got time on this. It's really helpful for having efi
earlyprintk, thanks for your excellent idea of printing to efi fb!


\
 
 \ /
  Last update: 2013-11-06 10:41    [W:0.142 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site