[beagleboard] HDMI output issue with latest kernel image

So, what kernel "branch" are you running right now? Some contain
patches to improve support for out of spec monitors..

Regards,

The branch I applied is v3.9-rc7-x1.1. Do you mean that other branch might work for HDMI output?
As I know, I used your patched version 3.0.4-x3, that can work well.

在 2013年5月3日星期五UTC+8上午2时57分53秒,RobertCNelson写道:

The branch I applied is v3.9-rc7-x1.1.

btw: v3.9 is out:
https://github.com/RobertCNelson/stable-kernel/commits/v3.9.x

Do you mean that other branch might
work for HDMI output?

No, it just means, I'm not a mind reader. As your original email, was
missing a very important piece of information...

So, your on the "v3.9.x" branch..

So... does disabling this patch:
https://github.com/RobertCNelson/stable-kernel/blob/v3.9.x/patch.sh#L107

help..

As I know, I used your patched version 3.0.4-x3, that can work well.

That's just too old for comparison.. I released that back on "Aug 30,
2011" according to git...

Regards,

Firstly I go to below path and run just within last 2~3 hours:
RobertCNelson/stable-kernel$ git pull

And then I switch to v3.9.x:
RobertCNelson/stable-kernel$ git branch
master
tmp

  • v3.9.x

In my local linus tree(use git clone previously to get it), I run “git pull” to update it. Then “git checkout” and press my Tab button.
I can see lots of options, e.g. … v3.9, v3.9-rc1…v3.9-rc8
So I “git checkout v3.9-rc8” (later I tried “git checkout v3.9” but got same result.)

Then I followed README under RobertCNelson/stable-kernel.
In file system.sh, I modified LINUX_GIT as below, which is linus tree of my local path.
LINUX_GIT=/home/tomxue/Tom/Source_Code/linus/linux

As you mentioned, I modified patch.sh to comment out below line:

${git} “${DIR}/patches/omap_beagle/0006-DSS2-use-DSI-PLL-for-DPI-with-OMAP3.patch”

Then I run “RobertCNelson/stable-kernel$ ./build_kernel.sh”.
After it was finished, I run “RobertCNelson/stable-kernel$ ./tools/install_kernel.sh”.

But finally my BeagleBoard-xM’s HDML output to my display is still black, while the version 3.0.4-x3 can work (means the connection and my display are setup correctly)

在 2013年5月4日星期六UTC+8上午12时37分23秒,RobertCNelson写道:

Well, no we know v3.7.x/v3.9.x don't work for you.. How about the
v3.2.x branch? that was about right before when the whole omapdss
subsystem changed..

Regards,

For below branch, both v3.2.x and v3.8.x the HDMI output works fine. Only v3.9.x cannot work for HDMI output.
And I didn’t try v3.7.x.

RobertCNelson/stable-kernel$ git branch
master
tmp
v3.2.x

  • v3.8.x
    v3.9.x

So why v3.9.x cannot work for HDMI while v3.8.x can. Possible reason.
I hope to use your patched kernel source to follow LKML’s latest kernel progress. (I don’t know how to make my PC’s Ubuntu x86 work with latest kernel source. So this Beagle Board platform is my only hope.)
So I hope to make v3.9.x work fine for everything, including its HDMI output.
Thanks!

For below branch, both v3.2.x and v3.8.x the HDMI output works fine. Only v3.9.x cannot work for HDMI output.
And I didn’t try v3.7.x.

RobertCNelson/stable-kernel$ git branch
master
tmp
v3.2.x

  • v3.8.x
    v3.9.x

So why v3.9.x cannot work for HDMI while v3.8.x can. Possible reason.
I hope to use your patched kernel source to follow LKML’s latest kernel progress. (I don’t know how to make my PC’s Ubuntu x86 work with latest kernel source. So this Beagle Board platform is my only hope.)
So I hope to make v3.9.x work fine for everything, including its HDMI output.
Thanks!

For below branch, both v3.2.x and v3.8.x the HDMI output works fine. Only v3.9.x cannot work for HDMI output.
And I didn’t try v3.7.x.

RobertCNelson/stable-kernel$ git branch
master
tmp
v3.2.x

  • v3.8.x
    v3.9.x

So why v3.9.x cannot work for HDMI while v3.8.x can. Possible reason.
I hope to use your patched kernel source to follow LKML’s latest kernel progress. (I don’t know how to make my PC’s Ubuntu x86 work with latest kernel source. So this Beagle Board platform is my only hope.)
So I hope to make v3.9.x work fine for everything, including its HDMI output.
Thanks!

For below branch, both v3.2.x and v3.8.x the HDMI output works fine. Only
v3.9.x cannot work for HDMI output.
And I didn't try v3.7.x.

Actually you did.. That's the version currently installed in the demo images..

RobertCNelson/stable-kernel$ git branch
  master
  tmp
  v3.2.x
* v3.8.x
  v3.9.x

So why v3.9.x cannot work for HDMI while v3.8.x can.

That was totally unexpected... So v3.8.x works, but v3.9.x doesn't.. Weird..

Possible reason.
I hope to use your patched kernel source to follow LKML's latest kernel
progress. (I don't know how to make my PC's Ubuntu x86 work with latest
kernel source. So this Beagle Board platform is my only hope.)
So I hope to make v3.9.x work fine for everything, including its HDMI

Regards,

I just bumped the v3.8.x branch to v3.8.11, so your a little closer to
mainline..

Regards,

Thank you!
Your work on Beagle Board helped me a lot.