[Bug 29726] New CRTC ID query breaks Radeon DRM in Zaphod mode

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Oct 24 22:09:03 PDT 2010


--- Comment #7 from Alex Deucher <agd5f at yahoo.com> 2010-10-24 22:09:03 PDT ---
(In reply to comment #6)
> I was thinking you actually meant the .drirc setting rather than an actual
> environment variable but you were right. Setting this in .drirc makes no
> difference but the environment variable does indeed make the problem go away.

It's works in the .drirc as well, but it requires slightly different handling
for dri2 drivers, e.g.,

    <device screen="0" driver="dri2">
        <application name="Default">
            <option name="vblank_mode" value="0" />

> I quite like vsyncing so I'm a little sad if it's broken. I think it was
> working before?

It wasn't supported before.  KMS vsync support was added with the commit cited
in this bug.

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