From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 77009] 24P playback video signal loss with latest DRI patches Date: Tue, 08 Apr 2014 13:29:35 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2014484439==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 8451C6EA08 for ; Tue, 8 Apr 2014 06:29:35 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============2014484439== Content-Type: multipart/alternative; boundary="1396963775.Ddd0DE12.31428"; charset="us-ascii" --1396963775.Ddd0DE12.31428 Date: Tue, 8 Apr 2014 13:29:35 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable https://bugs.freedesktop.org/show_bug.cgi?id=3D77009 --- Comment #23 from Christian K=C3=B6nig --- (In reply to comment #21) > Created attachment 97043 [details] > 368 and others dmesg >=20 > >Garrett, please stop trying to merge the patches. Since the initial chan= ge is >already upsteram we are going to need to fix it in a separate patch = anyway. >=20 > Sorry. New to this FOSS stuff. OE is a complete OS download with local > code not pulling from mainline kernels (from what I can tell). It was > tricky for me to patch it. I am trying to be transparent so others can > reproduce my results easily. No problem at all and keeping it reproducible is indeed a good intention. I just wanted to avoid that you spend time on unnecessary stuff. > What I don't understand is the pll numbers go > up and down, despite having the higher max vals. This concerns me.. Well that is simple to explain. Assum that you have a feedback to ref divid= er ratio of 100/11. This ratio can't be reduced any more without lossing precission. Now we also assume to the ref divider maximum is 10, so after limiting the = ref divider to 10 we end up with a ratio of 90/10. Now 90 to 10 can be reduced easily to 9/1. So in the end we end up with a far lower ration because of t= he reference divider limit. > Hope it helps. Yeah, your numbers indeed helped a bit, thanks. --=20 You are receiving this mail because: You are the assignee for the bug. --1396963775.Ddd0DE12.31428 Date: Tue, 8 Apr 2014 13:29:35 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Commen= t # 23 on bug 77009<= /a> from Christian K=C3=B6nig
(In reply to comment #=
21)
> Created attachm=
ent 97043 [details]
> 368 and others dmesg
>=20
> >Garrett, please stop trying to merge the patches. Since the initia=
l change is >already upsteram we are going to need to fix it in a separa=
te patch anyway.
>=20
> Sorry.  New to this FOSS stuff.  OE is a complete OS download with loc=
al
> code not pulling from mainline kernels (from what I can tell).  It was
> tricky for me to patch it.  I am trying to be transparent so others can
> reproduce my results easily.

No problem at all and keeping it reproducible is indeed a good intention. I
just wanted to avoid that you spend time on unnecessary stuff.

> What I don't understand is the pll numbers go
> up and down, despite having the higher max vals.  This concerns me..

Well that is simple to explain. Assum that you have a feedback to ref divid=
er
ratio of 100/11. This ratio can't be reduced any more without lossing
precission.

Now we also assume to the ref divider maximum is 10, so after limiting the =
ref
divider to 10 we end up with a ratio of 90/10. Now 90 to 10 can be reduced
easily to 9/1. So in the end we end up with a far lower ration because of t=
he
reference divider limit.

> Hope it helps.

Yeah, your numbers indeed helped a bit, thanks.


You are receiving this mail because: =20=20=20=20=20=20
  • You are the assignee for the bug.
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