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Today's Topics:
1. Re: Multihead support and preparing for 0.8.0 (Frederic Crozat)
2. Re: Multihead support and preparing for 0.8.0 (Ray Strode)
----------------------------------------------------------------------
Message: 1
Date: Wed, 30 Sep 2009 11:04:53 +0200
From: Frederic Crozat <[email protected]>
Subject: Re: Multihead support and preparing for 0.8.0
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset="ISO-8859-15"
Le mardi 29 septembre 2009 ? 14:19 -0400, Ray Strode a ?crit :
> Hey guys,
>
> Yesterday after releasing 0.7.2 I merged the "seat-rework" branch to master.
>
> This branch restructures the code quite a bit, in order to allow for
> multi-head renderering. I ported all the splash plugins over so they
> would rerender themselves on each head using that head's native
> resolution.
>
> We could conceivably have one head be the splash and another be
> details, or some other configuration. It's a plugin specific
> decision.
>
> In order to get the monitor layout I needed to move from using /dev/fb
> to libdrm for setting up the scan out buffers. I think that's the
> right long term move, but it did add a bit of complexity to the code.
> Even though we use libdrm now, it's still all done in software. We
> don't do any gpu acceleration; just software blits from a shadow frame
> buffer to the scanout buffer.
What does it mean when using vesa framebuffer as a fallback (when KMS is
not available or not working properly) ?
--
Frederic Crozat <[email protected]>
Mandriva
------------------------------
Message: 2
Date: Wed, 30 Sep 2009 09:44:37 -0400
From: Ray Strode <[email protected]>
Subject: Re: Multihead support and preparing for 0.8.0
To: Frederic Crozat <[email protected]>
Cc: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=UTF-8
Hi,
>> In order to get the monitor layout I needed to move from using /dev/fb
>> to libdrm for setting up the scan out buffers. ?I think that's the
>> right long term move, but it did add a bit of complexity to the code.
>> Even though we use libdrm now, it's still all done in software. ?We
>> don't do any gpu acceleration; just software blits from a shadow frame
>> buffer to the scanout buffer.
>
> What does it mean when using vesa framebuffer as a fallback (when KMS is
> not available or not working properly) ?
When it falls back to /dev/fb you get the old behavior (with wrong
looking multi-head).
--Ray
------------------------------
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End of plymouth Digest, Vol 12, Issue 4
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