linux-kernel - Re: Graphic corruption with i915 (2.6.39.1)

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Message-Id: <aefc95$f0ne9@orsmga001.jf.intel.com>
Date:	Thu, 16 Jun 2011 17:39:45 +0100
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Leandro Lucarella <luca@...cax.com.ar>
Cc:	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	David Airlie <airlied@...ux.ie>,
	intel-gfx@...ts.freedesktop.org
Subject: Re: Graphic corruption with i915 (2.6.39.1)

On Thu, 16 Jun 2011 13:18:03 -0300, Leandro Lucarella <luca@...cax.com.ar> wrote:
> cannot access /sys/kernel/debug/dri/0/i915_error_state: No such file or directory
> 
> The debug directory is not present, should I boot or compile with some
> particular option to enable it?

You need to compile with CONFIG_DEBUGFS and at runtime
"mount -tdebugfs debug /sys/kernel/debug".

The /sys/kernel/debug/dri/0/i915_error_state will only be populated
after a hang is detected.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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