From: "Fabian Pie" <fpie@teleker.com>
To: 'Jani Nikula' <jani.nikula@linux.intel.com>,
'Pierre-Louis Bossart' <pierre-louis.bossart@linux.intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: Baytrail MIPI/DSI Black when boot with HDMI connected
Date: Fri, 28 Oct 2016 05:40:27 -0300 [thread overview]
Message-ID: <000e01d230f6$f14fc2b0$d3ef4810$@teleker.com> (raw)
In-Reply-To: <87oa25m0j3.fsf@intel.com>
Ready https://bugs.freedesktop.org/show_bug.cgi?id=98467 . Thanks.
-----Mensaje original-----
De: Jani Nikula [mailto:jani.nikula@linux.intel.com]
Enviado el: viernes, 28 de octubre de 2016 3:49 a. m.
Para: Fabian Pie <fpie@teleker.com>; 'Pierre-Louis Bossart'
<pierre-louis.bossart@linux.intel.com>; intel-gfx@lists.freedesktop.org
CC: 'Chris Wilson' <chris@chris-wilson.co.uk>
Asunto: Re: Baytrail MIPI/DSI Black when boot with HDMI connected
On Fri, 28 Oct 2016, Fabian Pie <fpie@teleker.com> wrote:
> Hi,
> I'm testing Baytrail device with mipi/dsi display and hdmi output.
> When I boot without the hdmi connected the mipi/dsi works OK and after
> connecting the hdmi both mipi/dsi and hdmi display graphics OK.
> If I boot with the hdmi connected it's selected by the bios as the
> default display, Ubuntu only boots in hdmi and it works OK in this
> display but MIPI/DSI is black. It's listed as connected by xrandr but
> I can't reset in any way.
> I didn't find this issue in your bug list. Have you seen anything similar
?
> I'm using Ubuntu 16.10 with kernel 4.8.4
Probably the BIOS skips some DSI initialization in this case, and we fail to
bring it up. Please file a bug over at [1], include the above description,
add drm.debug=14 module parameter, attach dmesg all the way from boot for
both the working and broken cases, plus /sys/kernel/debug/dri/0/i915_vbt.
BR,
Jani.
[1]
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel
--
Jani Nikula, Intel Open Source Technology Center
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next prev parent reply other threads:[~2016-10-28 8:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-28 6:15 Baytrail MIPI/DSI Black when boot with HDMI connected Fabian Pie
2016-10-28 6:48 ` Jani Nikula
2016-10-28 8:40 ` Fabian Pie [this message]
2016-10-28 12:40 ` Pierre-Louis Bossart
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