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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Hello Johannes,

* Johannes Kliemann <Johannes.Kliemann@...250...> [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