All of lore.kernel.org
 help / color / mirror / Atom feed
From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 202445] amdgpu/dc: framerate dropping below adaptive sync range causes screen flickering
Date: Mon, 03 Jun 2019 10:56:35 +0000	[thread overview]
Message-ID: <bug-202445-2300-klcB0SKWjf@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-202445-2300@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=202445

jaapbuurman@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jaapbuurman@gmail.com

--- Comment #32 from jaapbuurman@gmail.com ---
I am experiencing the exact same issue, although I am still running the 5.1
kernel. I feel uncomfortable compiling my own kernel, so I cannot test 5.2 just
yet. I do have an additional observation that might be useful for debugging. My
freesync monitor has a 48-144 freesync range, and displays the current refresh
rate on its OSD.

The issue for me is the easiest to reproduce in Kerbal Space program while in
space, since the flickering is especially visible with the many white stars on
the blackness of space.

While in space with a large vessel that pushes your FPS down (33-40 FPS in the
ingame FPS monitor), my monitor is rapidly oscillating through the entire
freesync range (as low as 48 and as high as 144, and everything in between). As
far as I understand the technology, whenever the FPS is stable (for example at
37), it should use LFC to display each frame twice or thrice, and the monitor
should refresh at a constant 74hz or 111hz. But that is not what is happening
if I use a static view with a constant 37 FPS.

Is there something I can do to rule out a monitor issue? Perhaps by setting
some kind of debug option to see what the driver is instructing the monitor to
do?

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2019-06-03 10:56 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-29  4:53 [Bug 202445] New: amdgpu/dc: framerate dropping below adaptive sync range causes screen flickering bugzilla-daemon
2019-01-29 14:48 ` [Bug 202445] " bugzilla-daemon
2019-01-29 15:46 ` bugzilla-daemon
2019-01-29 15:47 ` bugzilla-daemon
2019-01-30 14:02 ` bugzilla-daemon
2019-01-30 16:50 ` bugzilla-daemon
2019-01-30 16:53 ` bugzilla-daemon
2019-01-30 17:04 ` bugzilla-daemon
2019-01-31  5:36 ` bugzilla-daemon
2019-01-31  6:17 ` bugzilla-daemon
2019-02-02 22:39 ` bugzilla-daemon
2019-02-03 23:28 ` bugzilla-daemon
2019-02-03 23:51 ` bugzilla-daemon
2019-02-04  4:59 ` bugzilla-daemon
2019-02-04 15:44 ` bugzilla-daemon
2019-02-04 16:41 ` bugzilla-daemon
2019-02-07  8:00 ` bugzilla-daemon
2019-02-07 14:24 ` bugzilla-daemon
2019-02-25 19:13 ` bugzilla-daemon
2019-02-28  4:57 ` bugzilla-daemon
2019-03-01 16:43 ` bugzilla-daemon
2019-03-01 16:45 ` bugzilla-daemon
2019-03-01 16:54 ` bugzilla-daemon
2019-03-11 15:45 ` bugzilla-daemon
2019-03-15 15:57 ` bugzilla-daemon
2019-03-16  8:30 ` bugzilla-daemon
2019-03-18 13:07 ` bugzilla-daemon
2019-03-18 15:25 ` bugzilla-daemon
2019-03-18 17:44 ` bugzilla-daemon
2019-03-28  3:45 ` bugzilla-daemon
2019-04-28  0:57 ` bugzilla-daemon
2019-04-29 13:31 ` bugzilla-daemon
2019-06-03 10:56 ` bugzilla-daemon [this message]
2019-09-16  2:33 ` bugzilla-daemon
2019-09-16 13:22 ` bugzilla-daemon
2019-09-16 14:58 ` bugzilla-daemon
2019-09-16 15:02 ` bugzilla-daemon
2020-02-15 23:20 ` bugzilla-daemon
2020-04-07 15:07 ` bugzilla-daemon
2020-04-07 15:10 ` bugzilla-daemon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-202445-2300-klcB0SKWjf@https.bugzilla.kernel.org/ \
    --to=bugzilla-daemon@bugzilla.kernel.org \
    --cc=dri-devel@lists.freedesktop.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.