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From: Daniel Drake <drake@endlessm.com>
To: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Chris Chiu <chiu@endlessm.com>,
	intel-gfx@lists.freedesktop.org,
	Linux Upstreaming Team <linux@endlessm.com>,
	dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: i915 4.9 regression: DP AUX CH sanitization no longer working on Asus desktops
Date: Thu, 4 May 2017 14:52:09 -0600	[thread overview]
Message-ID: <CAD8Lp44ZatKVtsYDiX27H_H1AWFHg2iCQ0Kdo2ie+P=KRB4=WA@mail.gmail.com> (raw)
In-Reply-To: <20170504203745.GB12629@intel.com>

On Thu, May 4, 2017 at 2:37 PM, Ville Syrjälä
<ville.syrjala@linux.intel.com> wrote:
> Please check if commit bb1d132935c2 ("drm/i915/vbt: split out defaults
> that are set when there is no VBT") fixes things for you.

I think this is not going to help. This would only make a difference
when there is no VBT at all at which point we would see this message
in the logs:

                DRM_INFO("Failed to find VBIOS tables (VBT)\n");

but in this case we have a VBT for ports B, C and E.

 [drm:intel_bios_init [i915]] Port B VBT info: DP:1 HDMI:1 DVI:1 EDP:0 CRT:0
 [drm:intel_bios_init [i915]] VBT HDMI level shift for port B: 8
 [drm:intel_bios_init [i915]] Port C VBT info: DP:0 HDMI:1 DVI:1 EDP:0 CRT:0
 [drm:intel_bios_init [i915]] VBT HDMI level shift for port C: 8
 [drm:intel_bios_init [i915]] Port E VBT info: DP:1 HDMI:0 DVI:0 EDP:0 CRT:0
 [drm:intel_bios_init [i915]] VBT HDMI level shift for port E: 0

Let me know if I'm missing something and we will test it anyway

Thanks
Daniel
_______________________________________________
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  reply	other threads:[~2017-05-04 20:52 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-04 20:21 i915 4.9 regression: DP AUX CH sanitization no longer working on Asus desktops Daniel Drake
2017-05-04 20:37 ` Ville Syrjälä
2017-05-04 20:52   ` Daniel Drake [this message]
2017-05-04 21:14     ` Manasi Navare
2017-05-05 10:29     ` Ville Syrjälä
2017-05-24 13:50       ` Daniel Drake
2017-05-26 11:26         ` [Intel-gfx] " Jani Nikula
2017-05-05  6:24 ` Jani Nikula

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