How to enable Linux penguin logo on OMAP?

Bob Chen2

Other Parts Discussed in Thread: 4460

I noticed that CONFIG_LOGO, CONFIG_VT and CONFIG_FRAMEBUFFER_CONSOLE are not selected by default on OMAP, so I enabled them all.

Which means, I should have seen the booting logo as below

However, what I actually saw was: only a narrow line on the top of screen...

And immediately, I saw the Android booting animation. The booting process finished.

There are some functions in drivers/video/fbcon.c, responsible for showing the booting logo. I added print in those functions and found they were executed at approx 3 seconds earlier before I saw the logo.

Kernel log:

[7 second] fbcon.c: do_show_logo()

[10 second] panel-taal: resume.

update brightness to 255

I saw that broken logo...

Is there anyone who can tell me what's going on here? Why the logo was broken and showed up so late?

over 11 years ago

0 Boyko Kazakov over 11 years ago

TI__Genius 10965 points

What Platform Are you using, and does the whole penguin logo appear?

Lastly is your purpose to enable kernel messages while booting? because you need to disable loading of the boot animation from the ramdisk before that.

Regards,

Boyko

0 Bob Chen2 over 11 years ago in reply to Boyko Kazakov

Prodigy 105 points

OMAP 4460, the logo doesn't appear.

kernel message? I enabled it for debugging.

What do you mean by disable animation loading from ramdisk?

0 Boyko Kazakov over 11 years ago in reply to Bob Chen2

TI__Genius 10965 points

So you want to see kernel boot messages? but the penguin logo is interrupted from the android boot animation.

So you have to disable it in order to see the debug messages.

Am I understanding you correct?

Regards,

Boyko

0 Bob Chen2 over 11 years ago in reply to Boyko Kazakov

Prodigy 105 points

...

I'm confused as well...

Let's go back to the original question. How to the enable penguin logo on OMAP?

Suppose I have the standard Android Linux kernel 3.0 source code, and have set CONFIG_LOGO, CONFIG_FRAMEBUFFER_CONSOLE and CONFIG_VT already.

But I didn't see that logo. Why?

0 Bob Chen2 over 11 years ago in reply to Boyko Kazakov

Prodigy 105 points

Hi Boyko, I disabled the Android booting logo in system/core/init/init.c.

Looks like this file opens a tty console and writes the ANDROID characters on screen?

But now I can't even see the broken penguin image. It jumps to Android animation directly.

0 Boyko Kazakov over 11 years ago in reply to Bob Chen2

TI__Genius 10965 points

Hi Bob,

Take a look at this link, I hope it answers your question

https://groups.google.com/forum/#!topic/android-platform/zD6UP-QIirk

Regards,

Boyko

0 Bob Chen2 over 11 years ago in reply to Boyko Kazakov

Prodigy 105 points

Hi Boyko,

I had a try as that thread suggested, but it didn't work.

( u-boot/include/configs/omap44XXtablet.h-emmc: modified console=ttyO2 to console=tty0 )

It seemed that the penguin logo was still interrupted by Android boot animation? I could only see a line on the top of the screen.

Was it because it showed up too late?

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How to enable Linux penguin logo on OMAP?