RE: [PATCH v5 00/10] OMAP4 : DSS2 : HDMI support on OMAP4

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Raue,

> -----Original Message-----
> From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Valkeinen, Tomi
> Sent: Thursday, March 17, 2011 4:41 PM
> To: Stephan Raue
> Cc: K, Mythri P; linux-omap@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH v5 00/10] OMAP4 : DSS2 : HDMI support on OMAP4
> 
> Hi,
> 
> On Wed, 2011-03-16 at 18:49 -0500, Stephan Raue wrote:
> 
> > i tried this test tree with omap2plus_defconfig.
> >
> > it seems the kernel crashes and poweroff the board on loading this hdmi
> > stuff, but dont print any crashlog. is there a way any backtraces will
> > be printed?
> > output from serial console: http://paste.pocoo.org/show/354850/
> > kernel config (omap2plus_defconfig, added squashfs support, added
> > support to include initramfs in kernel, build omapfb stuff statically
> > into the kernel): http://paste.pocoo.org/show/354853/

Is it possible for you to enable low-level debugging and pass omapfb.debug=1 omapdss.debug=1 in your bootargs?
This would show the Framebuffer and DSSDBG prints. We would get an idea if kernel is getting stuck in DSS/OMAPFB.

Let me know if you any help in enabling debug prints.

Also one more suggestion/ question, are you seeing a hang if DSS is not enabled in kernel?

-Thanks,
Mayuresh

> 
> Have the HDMI on your setup worked in any (prebuilt) image? What I'm
> asking is if you are sure the HDMI HW works on your board?
> 
> Powering off quietly sounds strange. Is your power supply sufficient?
> Well, I don't think that would explain the first crash you posted...
> 
>  Tomi
> 
> 
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