[Mesa-dev] [Bug 92987] fails to determine screen refresh rate when rendering is offloaded

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92987

--- Comment #4 from Michel Dänzer  ---
This works as expected with DRI3, will probably never be fixed with DRI2.

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[Mesa-dev] [Bug 92987] fails to determine screen refresh rate when rendering is offloaded

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92987

Stefan Dirsch  changed:

   What|Removed |Added

   Severity|minor   |enhancement

--- Comment #3 from Stefan Dirsch  ---
(In reply to Oliver Neukum from comment #2)
> (In reply to Stefan Dirsch from comment #1)
> > What's wrong with limiting fps to the refresh rate of 60Hz? vblank_mode in
> > /etc/drirc (~/.drirc) controls this. It's enabled (=1) by default.
> 
> Nothing is wrong with that. It is wrong not to do it. The error case is
> rendering with Radeon. I suppose Mesa fails to understand that the rendering
> device needs to take the refresh rate of an alien crtc.

I see. I'm afraid this is a feature request somehow. Right now you need to set
it manually. :-(

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[Mesa-dev] [Bug 92987] fails to determine screen refresh rate when rendering is offloaded

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92987

--- Comment #2 from Oliver Neukum  ---
(In reply to Stefan Dirsch from comment #1)
> What's wrong with limiting fps to the refresh rate of 60Hz? vblank_mode in
> /etc/drirc (~/.drirc) controls this. It's enabled (=1) by default.

Nothing is wrong with that. It is wrong not to do it. The error case is
rendering with Radeon. I suppose Mesa fails to understand that the rendering
device needs to take the refresh rate of an alien crtc.

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[Mesa-dev] [Bug 92987] fails to determine screen refresh rate when rendering is offloaded

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92987

Oliver Neukum  changed:

   What|Removed |Added

 Status|NEEDINFO|NEW

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[Mesa-dev] [Bug 92987] fails to determine screen refresh rate when rendering is offloaded

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92987

Stefan Dirsch  changed:

   What|Removed |Added

 Status|NEW |NEEDINFO

--- Comment #1 from Stefan Dirsch  ---
What's wrong with limiting fps to the refresh rate of 60Hz? vblank_mode in
/etc/drirc (~/.drirc) controls this. It's enabled (=1) by default.

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[Mesa-dev] [Bug 92987] fails to determine screen refresh rate when rendering is offloaded

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92987

Bug ID: 92987
   Summary: fails to determine screen refresh rate when rendering
is offloaded
   Product: Mesa
   Version: unspecified
  Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
  Severity: minor
  Priority: medium
 Component: Mesa core
  Assignee: mesa-dev@lists.freedesktop.org
  Reporter: oli...@neukum.org
QA Contact: mesa-dev@lists.freedesktop.org

This is seen with glxgears and rendering offloaded to Radeon with Intel Haswell
gfx. It is independent of the display used.

Glxgears renders with maximum rate if Radeon is used to render (DRI_PRIME=1)
but limits itself to the refresh rate of 60Hz if Intel is used for rendering
(DRI_PRIME=0)

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