[Buildroot] buildroot-2012.08: Handling drm module

[Zvi Vered]

Hello,

Build is OK.
The resulting image boots OK.
But the screen flickers with this image.
The image was not built with buildroot.
I built vanilla 3.4.7 downloaded from kernel.org

With knoppix 7.0.4, when I boot with: "knoppix 2" there is no flickering.
When I boot with "knoppix 2 nodrm" the screen flickers.

Is  "nodrm" a boot parameter (like  vga=normal)  ?

Thanks,
Zvika

-----Original Message----- 
From: Arnout Vandecappelle
Sent: Monday, November 12, 2012 12:42 AM
To: Zvi Vered
Cc: buildroot at busybox.net
Subject: Re: [Buildroot] buildroot-2012.08: Handling drm module

On 11/11/12 22:05, Zvi Vered wrote:
> Hello,
>
> I just tried buildroot-2012.08
>
> According to .config buildroot does not handle 'drm'. at all.
> Am I right ?
>
> When I booted my PC104 module with 'knoppix 2 nodrm' the text screen 
> flickers.
> With 'knoppix 2' the screen is OK.
>
> Now I want to boot the PC104 with "my" distribution based on vanilla
> 3.4.7, busybox.
> Can you help ?

  Can you explain what your problem is?  Is it that the build fails, or that 
the
resulting image doesn't boot, or that the screen still flickers with the
buildroot image?

  In any case, it is probably a kernel problem.  If you use exactly the same 
kernel
version and kernel configuration as in knoppix, you should get the same 
behaviour.
(You can usually get the configuration of a running kernel from 
/proc/config.gz).
Note that knoppix may have additional kernel patches as well.

  Regards,
  Arnout
-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
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