From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 111482] Sapphire Pulse RX 5700 XT power consumption Date: Sun, 08 Sep 2019 02:02:18 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0511913057==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id A18AF89D81 for ; Sun, 8 Sep 2019 02:02:18 +0000 (UTC) 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 --===============0511913057== Content-Type: multipart/alternative; boundary="15679081381.De34B8.28534" Content-Transfer-Encoding: 7bit --15679081381.De34B8.28534 Date: Sun, 8 Sep 2019 02:02:18 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D111482 --- Comment #16 from Andrew Sheldon --- One possibility could be to create a custom modeline, perhaps trying refresh rates between 30-60hz (starting with 45hz), so you can find a point where t= he high idle power usage kicks in. Reduced blanking modes could be useful if i= t's a case of bandwidth. See: https://github.com/kevinlekiller/cvt_modeline_calculator_12 Something like this, using just xrandr (-b option indicating reduced blanki= ng v2 mode): ./cvt12 5120 1440 45 -b Which yields: Modeline "5120x1440_45.00_rb2" 344.21 5120 5128 5160 5200 1440 1457 1465 1471 +hsync -vsync Then: xrandr --output DisplayPort-2 --newmode "5120x1440_45.00_rb2" 344.21 5120 = 5128 5160 5200 1440 1457 1465 1471 +hsync -vsync xrandr --output DisplayPort-2 --addmode DisplayPort-2 "5120x1440_45.00_rb2" xrandr --output DisplayPort-2 --mode "5120x1440_45.00_rb2" --=20 You are receiving this mail because: You are the assignee for the bug.= --15679081381.De34B8.28534 Date: Sun, 8 Sep 2019 02:02:18 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comme= nt # 16 on bug 11148= 2 from Andrew Sheldon 
One possibility could be to create a custom modeline, perhaps =
trying refresh
rates between 30-60hz (starting with 45hz), so you can find a point where t=
he
high idle power usage kicks in. Reduced blanking modes could be useful if i=
t's
a case of bandwidth.

See: https://github.com/kevinlekiller/cvt_modeline_calculator_12

Something like this, using just xrandr (-b option indicating reduced blanki=
ng
v2 mode):

./cvt12 5120 1440 45 -b

Which yields:
Modeline "5120x1440_45.00_rb2"  344.21  5120 5128 5160 5200  1440=
 1457 1465
1471 +hsync -vsync

Then:
xrandr --output DisplayPort-2 --newmode "5120x1440_45.00_rb2" 344=
.21  5120 5128
5160 5200  1440 1457 1465 1471 +hsync -vsync

xrandr --output DisplayPort-2 --addmode DisplayPort-2 "5120x1440_45.00=
_rb2"

xrandr --output DisplayPort-2 --mode "5120x1440_45.00_rb2"

You are receiving this mail because:
  • You are the assignee for the bug.
= --15679081381.De34B8.28534-- --===============0511913057== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs --===============0511913057==--