Re: Intel fb debug output

[Johannes Kliemann]

Stefan Kalkowski, Josef Söntgen, thank you for the quick info.

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Re: Intel fb debug output

[Josef Söntgen]

Hello Johannes,

* Johannes Kliemann  [2017-04-10 09:42:41 
+0200]:
> I want to enable the debug output in the Intel framebuffer (to see
> messages printed by DRM_DEBUG_KMS). This is usually done by adding the
> boot parameter `drm.debug=0xe`.
> 
> How would I enable this in Genode with Nova?

There is no user facing configuration knob in the intel_fb_drv. You have
to set the 'drm_debug' variable directly in the source code. It is located
at 'repos/dde_linux/src/drivers/framebuffer/intel/lx_emul.cc:821'.

Regards,
Josef

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Josef Söntgen
Genode Labs

http://www.genode-labs.com/ · http://genode.org/

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Re: Intel fb debug output

[Stefan Kalkowski]

Hi Johannes,

On 04/10/2017 09:42 AM, Johannes Kliemann wrote:
> Hi,
> 
> I want to enable the debug output in the Intel framebuffer (to see
> messages printed by DRM_DEBUG_KMS). This is usually done by adding the
> boot parameter `drm.debug=0xe`.
> 
> How would I enable this in Genode with Nova?

in contrast to the original Linux kernel version, you have to change the
drm.debug value at compilation time when building for Genode. You can
change the value drm_debug here:

  repos/dde_linux/src/drivers/framebuffer/intel/lx_emul.cc:811

best regards
Stefan

> 
> JK
> 
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-- 
Stefan Kalkowski
Genode Labs

https://github.com/skalk · http://genode.org/

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Intel fb debug output

[Johannes Kliemann]

Hi,

I want to enable the debug output in the Intel framebuffer (to see
messages printed by DRM_DEBUG_KMS). This is usually done by adding the
boot parameter `drm.debug=0xe`.

How would I enable this in Genode with Nova?

JK

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