From: Jani Nikula <jani.nikula@linux.intel.com>
To: lawsonlu <lawsonlu@linpus.com>, intel-gfx@lists.freedesktop.org
Subject: Re: [HSW issue] Can not turn on LVDS panel with kernel 3.8-rc2 on some ivybridge NB
Date: Mon, 21 Jan 2013 09:12:25 +0200 [thread overview]
Message-ID: <871udfrova.fsf@intel.com> (raw)
In-Reply-To: <C41CEEA4576B4CE7AA6444F70F578296@XP201301111452>
On Mon, 14 Jan 2013, lawsonlu <lawsonlu@linpus.com> wrote:
> Hi,
>
> I use kernel 3.8-rc2 with haswell support in currently linux os, but the kernel will cause black screen on LVDS panel, and the eDP panel is right.
> Another word, the haswell patch in kernel 3.8 can not turn on LVDS panel on some sample. Can anybody help me for this issue?
> The test platform hardware spec as the following table.
Hi Lawson, Haswell support shouldn't make a difference if you're running
Ivy Bridge. Do you have two different machines, one with eDP and one
with LVDS, or what is your setup?
Just a shot in the dark, please try cherry-picking
commit f30d26e468322b50d5e376bec40658683aff8ece
Author: Jani Nikula <jani.nikula@intel.com>
Date: Wed Jan 16 10:53:40 2013 +0200
drm/i915/eDP: do not write power sequence registers for ghost eDP
from [1]; that fixes a ghost eDP screwing up LVDS. If that doesn't work,
please file a bug on DRM/Intel [2].
BR,
Jani.
[1] http://cgit.freedesktop.org/~danvet/drm-intel/commit/?id=f30d26e468322b50d5e376bec40658683aff8ece
[2] https://01.org/linuxgraphics/documentation/how-report-bugs-0
>
>
> CPU Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz
> Platform Intel Ivybridge Chipset
> RAM 6 GB DDR3
> HDD Hitachi HTS543232A7A384 ( 320.1 GB)
>
> VGA Intel Corporation Device [8086:0166] (rev 08)
>
> Audio Intel Corporation Panther Point High Definition Audio Controller [8086:1e20] (rev 04)
> Audio codec Codec:Codec: Realtek ALC269VB
> Vendor ID:0x10ec0269
> Subsystem ID:0x1025064b
> Revision ID:0x100100
>
>
>
> Rgds,
> Lawson
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2013-01-21 7:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-14 7:53 [HSW issue] Can not turn on LVDS panel with kernel 3.8-rc2 on some ivybridge NB lawsonlu
2013-01-21 7:12 ` Jani Nikula [this message]
-- strict thread matches above, loose matches on Subject: below --
2013-01-14 8:37 lawsonlu
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=871udfrova.fsf@intel.com \
--to=jani.nikula@linux.intel.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=lawsonlu@linpus.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox