[Bug 90212] [BDW-Y bisected] Screen flicker when start X with FBC enable

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Jul 16 13:38:57 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=90212

Paulo Zanoni <przanoni at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
                 CC|                            |przanoni at gmail.com

--- Comment #5 from Paulo Zanoni <przanoni at gmail.com> ---
If you're using one of the SDVs, please boot the machine and go to the BIOS

Intel Advanced Menu ->
System Agent (SA) Configuration ->
Graphics Configuration ->

Then please change the "DVMT pre-allocated" size to something big (it's
probably 32mb, and setting to 64mb should be enough). Then boot and see if the
problem is gone.

Don't forget to set the value back to 32mb after testing :)
This isn't really a "fix", but just a way to confirm that something is using
the top of stolen memory.

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