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: Thu, 27 Mar 2014 18:24:24 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0381616870==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id A205F6E583 for ; Thu, 27 Mar 2014 11:24:24 -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 --===============0381616870== Content-Type: multipart/alternative; boundary="1395944664.f6040.9715"; charset="us-ascii" --1395944664.f6040.9715 Date: Thu, 27 Mar 2014 18:24:24 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=76564 --- Comment #19 from jeroen --- (In reply to comment #16) > (In reply to comment #15) > > I got the results with fglrx: > > PPLL1@50Hz: fb=23.7 ref=2 post=6 > > PPLL1@23.976Hz: fb=23.7 ref=2 post=12 > > > > PPLL2 does seem to be used as it does not change. PPLL1 has different values > > than with the radeon OSS driver. What does this mean? > > > (100Mhz * 23.7) / (2 * 6) = 197.5Mhz > > (100Mhz * 23.7) / (2 * 12) = 98.75Mhz > > Maybe fglrx is using different modelines with a different display clock? > Can you print what modes are being used with fglrx and radeon? E.g., xrandr > --verbose. I attached both xrandr outputs. I also noticed that for fgrlx the PLL values are the same for 50Hz,60Hz and 59.94Hz output. -- You are receiving this mail because: You are the assignee for the bug. --1395944664.f6040.9715 Date: Thu, 27 Mar 2014 18:24:24 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 19 on bug 76564 from 
(In reply to comment #16)
> (In reply to comment #15)
> > I got the results with fglrx:
> > PPLL1@50Hz:     fb=23.7    ref=2    post=6
> > PPLL1@23.976Hz: fb=23.7    ref=2    post=12
> > 
> > PPLL2 does seem to be used as it does not change. PPLL1 has different values
> > than with the radeon OSS driver. What does this mean?
> 
> 
> (100Mhz * 23.7) / (2 * 6) = 197.5Mhz
> 
> (100Mhz * 23.7) / (2 * 12) = 98.75Mhz
> 
> Maybe fglrx is using different modelines with a different display clock? 
> Can you print what modes are being used with fglrx and radeon?  E.g., xrandr
> --verbose.

I attached both xrandr outputs.

I also noticed that for fgrlx the PLL values are the same for 50Hz,60Hz and
59.94Hz output.

You are receiving this mail because:
  • You are the assignee for the bug.
--1395944664.f6040.9715-- --===============0381616870== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel --===============0381616870==--