From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 76564] [AMD Fusion E-350] HDMI refresh rates doesn't match expectations Date: Wed, 02 Apr 2014 15:18:46 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1421012363==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id EDFEF6EB9B for ; Wed, 2 Apr 2014 08:18:45 -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 --===============1421012363== Content-Type: multipart/alternative; boundary="1396451925.EF504c1E2.18561"; charset="us-ascii" --1396451925.EF504c1E2.18561 Date: Wed, 2 Apr 2014 15:18:45 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=76564 --- Comment #47 from Rainer Hochecker --- (In reply to comment #41) > (In reply to comment #40) > > If you set "sync playback to display" in XBMC, an inaccurate clock has no > > impact on dropped or skipped frames. Suppose you only have a 24Hz mode and > > play material which is 23.976. It would slightly speed up playback: every > > vblank interval a frame is rendered. > > If you observe skipped frames, the render thread may have been blocked too > > long or a vertical retrace was missed. > > Hello FernetMenta, > > Thanks for commenting, as you are one of the experts on this subject in XBMC. > > "sync playback to display" is definately enabled on my system and still I am > seeing skipped or missed frames depending on if the clock is too slow or too > fast, respectively. > Also, the patches from Christian already proved that a clock that is closer > to the television display clock DOES have an influence on skipping/missing > frames. If the clock had no impact there wouldn't be a problem in the first > place. > > The posted xrandr logs also show my television does have a 23.976 mode. Again, a wrong speed does NOT have direct influence on dropped or skipped frames. If you see a some kind of relationship you have to look for the missing piece. -- You are receiving this mail because: You are the assignee for the bug. --1396451925.EF504c1E2.18561 Date: Wed, 2 Apr 2014 15:18:45 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 47 on bug 76564 from 
(In reply to comment #41)
> (In reply to comment #40)
> > If you set "sync playback to display" in XBMC, an inaccurate clock has no
> > impact on dropped or skipped frames. Suppose you only have a 24Hz mode and
> > play material which is 23.976. It would slightly speed up playback: every
> > vblank interval a frame is rendered.
> > If you observe skipped frames, the render thread may have been blocked too
> > long or a vertical retrace was missed.
>  
> Hello FernetMenta,
> 
> Thanks for commenting, as you are one of the experts on this subject in XBMC.
> 
> "sync playback to display" is definately enabled on my system and still I am
> seeing skipped or missed frames depending on if the clock is too slow or too
> fast, respectively.
> Also, the patches from Christian already proved that a clock that is closer
> to the television display clock DOES have an influence on skipping/missing
> frames. If the clock had no impact there wouldn't be a problem in the first
> place.
> 
> The posted xrandr logs also show my television does have a 23.976 mode.

Again, a wrong speed does NOT have direct influence on dropped or skipped
frames. If you see a some kind of relationship you have to look for the missing
piece.

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