From: Daniel Vetter <daniel@ffwll.ch>
To: Guo Tang <guo.tang@sonoartis.com>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>
Subject: Re: Questions about tripple display
Date: Fri, 13 Jul 2012 18:38:35 +0200 [thread overview]
Message-ID: <CAKMK7uHr1paWUrRR5x6w1_Kp9w3gOpOKAPTZKy2TYiBAGTzoLg@mail.gmail.com> (raw)
In-Reply-To: <CAOF+-isdRZNwZLN8z=eNOBTZn4rKyaVStGWP4ZuEj=LK=Tf=Mg@mail.gmail.com>
On Fri, Jul 13, 2012 at 6:36 PM, Guo Tang <guo.tang@sonoartis.com> wrote:
> Hi, Daniel,
>
> Thanks for the prompt reply. From your reply looks like I still have a
> little hope.
>
> How about if I only run 1024x768@60Hz or 30Hz resolution? Will that address
> the dotclock problem
> between LVDS and TV?
As I've said, carefully picking a dotclock that matches up with TV or
LVDS can work, but we don't bother to support that in the driver
because imo it's not worth the hassle. If you really want to stitch
something like this together, grep for needs_tvclock in the drm/i915
sources (or check out the lvds panel fitter code). I.e. it's by far
not as simple as just picking the same mode as e.g. on the TV. And
you'd need to restructure the kernel driver quite a bit to make it
work.
-Daniel
--
Daniel Vetter
daniel.vetter@ffwll.ch - +41 (0) 79 364 57 48 - http://blog.ffwll.ch
next prev parent reply other threads:[~2012-07-13 16:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-13 15:59 Questions about tripple display Guo Tang
2012-07-13 16:10 ` Daniel Vetter
2012-07-13 16:36 ` Guo Tang
2012-07-13 16:38 ` Daniel Vetter [this message]
2012-07-13 16:44 ` Guo Tang
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=CAKMK7uHr1paWUrRR5x6w1_Kp9w3gOpOKAPTZKy2TYiBAGTzoLg@mail.gmail.com \
--to=daniel@ffwll.ch \
--cc=guo.tang@sonoartis.com \
--cc=intel-gfx@lists.freedesktop.org \
/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.