Re: [PATCH 3/3] drm/vmwgfx: Disable coherent dumb buffers without 3d

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On 24/08/16 02:32PM, Zack Rusin wrote:
> Coherent surfaces make only sense if the host renders to them using
> accelerated apis. Without 3d the entire content of dumb buffers stays
> in the guest making all of the extra work they're doing to synchronize
> between guest and host useless.
> 
> Configurations without 3d also tend to run with very low graphics
> memory limits. The pinned console fb, mob cursors and graphical login
> manager tend to run out of 16MB graphics memory that those guests use.
> 
> Fix it by making sure the coherent dumb buffers are only used on
> configs with 3d enabled.

Hello Zack,

just FYI: somebody on the Arch Linux Forums tested the suggested patch
and found it working:

https://bbs.archlinux.org/viewtopic.php?pid=2190679#p2190679

Cheers,
Chris

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