[Bug 98297] Can't configure a desktop with 3x4k monitors in one row

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98297

Kenneth Graunke <kenneth at whitecape.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|idr at freedesktop.org         |jljusten at gmail.com

--- Comment #2 from Kenneth Graunke <kenneth at whitecape.org> ---
(In reply to Cooper Chiou from comment #1)
> Customer escalated this issue since it's blocking issue. Thanks,

Please talk to management (Kaveh) for any escalations and priority discussions.
 Updating priority fields in bugzilla isn't likely to help get more/less
attention.

(In reply to Timo Aaltonen from comment #0)
> The i965 driver has a limitation of 8kx8k for texture size, and this causes
> issues trying to configure compiz to use, say, three 4k monitors in one row
> with recent hardware.

We should be able to handle 16kx16k on Ivybridge and later.  If you want to try
this, you can edit brw_context.c:526-527 (change 8192 -> 16384 and 14 -> 15).

The downside is that we can currently only blit 8k wide stencil buffers, so
those blits would break (probably assert fail).  Large depth/stencil MSAA
surfaces may break as well.  Jordan is working on a real solution for this.

Jordan, how's your blorp-splitting code going?

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