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Bug 4950 - fbdev: wait-for-vblank ioctl call does nothing
Summary: fbdev: wait-for-vblank ioctl call does nothing
Status: RESOLVED FIXED
Alias: None
Product: SDL
Classification: Unclassified
Component: video (show other bugs)
Version: HG 1.2
Hardware: All Linux
: P2 normal
Assignee: Sam Lantinga
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-01-13 18:24 UTC by Paul Cercueil
Modified: 2020-09-22 02:35 UTC (History)
1 user (show)

See Also:

Attachments
Patch to fix the issue (986 bytes, text/plain)
2020-01-13 18:24 UTC, Paul Cercueil 		Details
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Description Paul Cercueil 2020-01-13 18:24:49 UTC 
Created attachment 4166 [details]
Patch to fix the issue

From the patch:

"This ioctl never made it to upstream Linux.
Besides, with KMS drivers page-flipping already happens in the vblank."
Comment 1 Ozkan Sezer 2020-09-22 02:13:53 UTC 
The patch is in. Thanks.
http://hg.libsdl.org/SDL/rev/aa0858ece538

PS: Can you have a look at bug #4432 ?
Comment 2 Paul Cercueil 2020-09-22 02:26:45 UTC 
(In reply to Ozkan Sezer from comment #1)
> The patch is in. Thanks.
> http://hg.libsdl.org/SDL/rev/aa0858ece538
> 
> PS: Can you have a look at bug #4432 ?

I can't reproduce #4432, fbdev has been working fine on top of DRM in our case.
Comment 3 Ozkan Sezer 2020-09-22 02:35:12 UTC 
(In reply to Paul Cercueil from comment #2)
> I can't reproduce #4432, fbdev has been working fine on top of DRM in our
> case.

Thanks. Added your report there, too.