[Precise][PATCH 0/2] Disable CONFIG_STUB_POULSBO in favor of CONFIG_DRM_PSB

[leann.ogasawara at canonical.com]

From: Leann Ogasawara <leann.ogasawara at canonical.com>

BugLink: http://bugs.launchpad.net/bugs/899244

There is a staging driver, psb_gfX (CONFIG_DRM_PSB), which supports
Intel GMA500 cards.  This driver has moved out of staging as of v3.3.
We currently have this staging driver enabled.  Unfortunately,
this driver conflicts with the poulsbo driver (CONFIG_STUB_POULSBO). The
poulsbo driver supports cards 8086:8108 and 8086:8109 both of which are
also supported by the psb_gfx driver.  It has been requested we disable
the poulsbo driver in favor of the psb_gfx driver.  Users owning 8086:8108
confirm they need to use the psb_gfx driver to have proper graphics
support.  If they try to use the poulsbo driver, X fails.

I'd committed this change earlier in the cycle but there were concerns
about completely disabling the pouslbo driver and an alternative
solution of blacklisting the poulsbo driver in module-init-tools might
be a better solution.  However, having received confirmation from users
that their devices are better supported by psb_gfx, it seems best to
just disable the poulsbo driver rather than blacklist it in
module-init-tools.

I wanted to circulate this to the list to get feedback before applying.

There is also an upstream bug to track the driver's conflicting:

https://bugzilla.kernel.org/show_bug.cgi?id=42848

Thanks,
Leann

Leann Ogasawara (2):
  UBUNTU: [Config] Disable CONFIG_STUB_POULSBO
  UBUNTU: [Config] Add CONFIG_DRM_PSB check to enforcer

 debian.master/config/config.common.ubuntu |    2 +-
 debian.master/config/enforce              |    6 ++++++
 2 files changed, 7 insertions(+), 1 deletions(-)

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