From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 111483] FreeSync LFC breaks under certain circumstances, causing either tearing or stutter Date: Sun, 25 Aug 2019 16:09:31 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1563822718==" 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 9D4D489F1B for ; Sun, 25 Aug 2019 16:09:31 +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 --===============1563822718== Content-Type: multipart/alternative; boundary="15667493710.b8E5fF4.26081" Content-Transfer-Encoding: 7bit --15667493710.b8E5fF4.26081 Date: Sun, 25 Aug 2019 16:09:31 +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=3D111483 Bug ID: 111483 Summary: FreeSync LFC breaks under certain circumstances, causing either tearing or stutter Product: DRI Version: DRI git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: not set Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: tempel.julian@gmail.com I've noticed that there sometimes was tearing (vsync off) when framerate was below VRR range minimum (which is 40 - 144Hz in my case), e.g. in some game= 's videos that run with 30fps and probably also if framerate rapidly drops bel= ow VRR range. I found a way to reliably reproduce the issue during actual game rendering: Start vkquake and load a level. Game's default limiter is set to 200. Open game's console via tilde key (English keyboard layout, button below ESC) and set fps to 35 (should be below any display's VRR range minimum) by typing "host_maxfps 35". -> FreeSync LFC should be broken now and show tearing if vsync isn't turned= on. When changing again to a value that's inside the VRR range, e.g. 100, VRR w= orks perfectly again. When switching back to 35, it's once again broken. The Windows driver doesn't seem to show this issue. linux 5.2.9 (also tested drm-next branch) xf86-video-amdgpu-git e6fce59a071220967fcd4e2c9e4a262c72870761 RX 570 radv of mesa-git ACO branch fc0fdb637b4a028816f5a59b14eda07612e1bc9b --=20 You are receiving this mail because: You are the assignee for the bug.= --15667493710.b8E5fF4.26081 Date: Sun, 25 Aug 2019 16:09:31 +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 111483
Summary FreeSync LFC breaks under certain circumstances, causing eith= er tearing or stutter
Product DRI
Version DRI git
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority not set
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter tempel.julian@gmail.com 

I've noticed that there sometimes was tearing (vsync off) when=
 framerate was
below VRR range minimum (which is 40 - 144Hz in my case), e.g. in some game=
's
videos that run with 30fps and probably also if framerate rapidly drops bel=
ow
VRR range.

I found a way to reliably reproduce the issue during actual game rendering:
Start vkquake and load a level. Game's default limiter is set to 200. Open
game's console via tilde key (English keyboard layout, button below ESC) and
set fps to 35 (should be below any display's VRR range minimum) by typing
"host_maxfps 35".
-> FreeSync LFC should be broken now and show tearing if vsync isn't tur=
ned on.
When changing again to a value that's inside the VRR range, e.g. 100, VRR w=
orks
perfectly again. When switching back to 35, it's once again broken.
The Windows driver doesn't seem to show this issue.

linux 5.2.9 (also tested drm-next branch)
xf86-video-amdgpu-git e6fce59a071220967fcd4e2c9e4a262c72870761
RX 570
radv of mesa-git ACO branch fc0fdb637b4a028816f5a59b14eda07612e1bc9b

You are receiving this mail because:
  • You are the assignee for the bug.
= --15667493710.b8E5fF4.26081-- --===============1563822718== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs --===============1563822718==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 111483] FreeSync LFC breaks under certain circumstances, causing either tearing or stutter Date: Mon, 07 Oct 2019 19:28:31 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1505687529==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 643AD6E1A7 for ; Mon, 7 Oct 2019 19:28:31 +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 --===============1505687529== Content-Type: multipart/alternative; boundary="15704765111.2f7BEF011.27798" Content-Transfer-Encoding: 7bit --15704765111.2f7BEF011.27798 Date: Mon, 7 Oct 2019 19:28:31 +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=3D111483 --- Comment #1 from tempel.julian@gmail.com --- I think there is a realistic chance that this issue has been tackled by this commit: https://cgit.freedesktop.org/~agd5f/linux/commit/?h=3Ddrm-next-5.5-wip&id= =3D109b3e3e13507ad0908ff00bc7eb759ed41b88be However, I don't own an LFC capable display anymore and can't test. Though I think it might be a candidate for backporting to 5.4? --=20 You are receiving this mail because: You are the assignee for the bug.= --15704765111.2f7BEF011.27798 Date: Mon, 7 Oct 2019 19:28:31 +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

Commen= t # 1 on bug 11148= 3 from tempel.j= ulian@gmail.com 
I think there is a realistic chance that this issue has been t=
ackled by this
commit:
https://cgit.free=
desktop.org/~agd5f/linux/commit/?h=3Ddrm-next-5.5-wip&id=3D109b3e3e1350=
7ad0908ff00bc7eb759ed41b88be

However, I don't own an LFC capable display anymore and can't test.
Though I think it might be a candidate for backporting to 5.4?

You are receiving this mail because:
  • You are the assignee for the bug.
= --15704765111.2f7BEF011.27798-- --===============1505687529== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs --===============1505687529==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 111483] FreeSync LFC breaks under certain circumstances, causing either tearing or stutter Date: Tue, 19 Nov 2019 09:50:37 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1762698278==" 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 C6FCA6E4CA for ; Tue, 19 Nov 2019 09:50:36 +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 --===============1762698278== Content-Type: multipart/alternative; boundary="15741570361.729DC6.12851" Content-Transfer-Encoding: 7bit --15741570361.729DC6.12851 Date: Tue, 19 Nov 2019 09:50:36 +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=3D111483 Martin Peres changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |MOVED Status|NEW |RESOLVED --- Comment #2 from Martin Peres --- -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this = link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/894. --=20 You are receiving this mail because: You are the assignee for the bug.= --15741570361.729DC6.12851 Date: Tue, 19 Nov 2019 09:50:36 +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 <= span class=3D"fn">Martin Peres changed bug 11148= 3
What Removed Added
Resolution --- MOVED
Status NEW RESOLVED

Commen= t # 2 on bug 11148= 3 from Martin Peres 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this =
link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/894.

You are receiving this mail because:
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