From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 99418] DRI3 Stuttering while scrolling in Chromium/Chrome with VBLANK off Date: Sun, 15 Jan 2017 14:47:13 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0032482147==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 207636E0DD for ; Sun, 15 Jan 2017 14:47:14 +0000 (UTC) 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 --===============0032482147== Content-Type: multipart/alternative; boundary="14844916330.CA82Ac.28591"; charset="UTF-8" --14844916330.CA82Ac.28591 Date: Sun, 15 Jan 2017 14:47:13 +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=3D99418 Bug ID: 99418 Summary: DRI3 Stuttering while scrolling in Chromium/Chrome with VBLANK off Product: DRI Version: XOrg git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: lei.pero@gmail.com Not sure where to report this issue, as title says, problem is not present = with VBLANK enabled. Vblank is disabled in both xorg configuration and .drirc profile (and clutt= er when using GNOME). Expected behaviour (DRI2): When scrolling pages (with smooth scroll) in Chromium for example, it defau= lts at FPS=3Drefresh rate (my case 85Hz), there is just tearline present, every= thing else is smooth and fine (as with vblank enabled, except tearline). On DRI3 however, even on simple forums/text based pages, there is stuttering/choppy scrolling. GPU is HD 6770, Xorg server version is 1.19.1, if you need more information/testing, would be happy to do it. --=20 You are receiving this mail because: You are the assignee for the bug.= --14844916330.CA82Ac.28591 Date: Sun, 15 Jan 2017 14:47:13 +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
Bug ID 99418
Summary DRI3 Stuttering while scrolling in Chromium/Chrome with VBLAN= K off
Product DRI
Version XOrg git
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/Radeon
Assignee dri-devel@lists.freedesktop.org
Reporter lei.pero@gmail.com 

Not sure where to report this issue, as title says, problem is=
 not present with
VBLANK enabled.

Vblank is disabled in both xorg configuration and .drirc profile (and clutt=
er
when using GNOME).

Expected behaviour (DRI2):
When scrolling pages (with smooth scroll) in Chromium for example, it defau=
lts
at FPS=3Drefresh rate (my case 85Hz), there is just tearline present, every=
thing
else is smooth and fine (as with vblank enabled, except tearline).

On DRI3 however, even on simple forums/text based pages, there is
stuttering/choppy scrolling.

GPU is HD 6770, Xorg server version is 1.19.1, if you need more
information/testing, would be happy to do it.

You are receiving this mail because:
  • You are the assignee for the bug.
= --14844916330.CA82Ac.28591-- --===============0032482147== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0032482147==--