From: Jani Nikula <jani.nikula@linux.intel.com>
To: Fabian Pie <fpie@teleker.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 09:48:48 +0300 [thread overview]
Message-ID: <87oa25m0j3.fsf@intel.com> (raw)
In-Reply-To: <000101d230e2$bd6746d0$3835d470$@teleker.com>
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
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2016-10-28 6:48 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 [this message]
2016-10-28 8:40 ` Fabian Pie
2016-10-28 12:40 ` Pierre-Louis Bossart
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87oa25m0j3.fsf@intel.com \
--to=jani.nikula@linux.intel.com \
--cc=fpie@teleker.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=pierre-louis.bossart@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.