iMX35 3stack framebuffer problem

Boaz Ben-David at
Tue Oct 11 02:59:41 EDT 2011

On 10/11/11 08:57, Boaz Ben-David wrote:
> On 10/11/11 08:54, Robert Schwebel wrote:
>> On Tue, Oct 11, 2011 at 08:40:52AM +0200, Boaz Ben-David wrote:
>>> Yes, I didn't mention it, but I tried your suggestion. It works
>>> (meaning there's no flicker) but
>>> the problem is that the screen is blank for about 8 seconds before I
>>> have control again to init it.
>>> People here said they prefer flicker over 8 seconds of blank time...
>> This is why we have a framebuffer / video driver framework in Barebox.
>> We do not have a driver for MX35 yet, but that could of course be
>> changed.
>> On the other hand, I'm wondering why it needs 8 s until you see
>> something on the Linux side. We have an MX35 system here which runs at
>> 532 MHz, and it needs about 1 s from power-on into Linux userspace, so
>> we decided to show the splash screen from there.
>> rsc

The kernel size is almost 5MB (it includes an initramfs).

8 seconds are from the time I call "bootm uImage" and until the init 
script in the initramfs kicks in.

If I can seriously shorten this time I will be glad to know, maybe 
there's something I missed.

Any input will be appreciated.



More information about the barebox mailing list