[PATCH 0/1] [Karmic] LP#351756 -- enable dual head setups on i915

[Tim Gardner]

Andy Whitcroft wrote:
> When enabling dual head setups on Intel we commonly risk blowing the
> 2048x2048 limit meant to protect us from overrunning the scanout capacity
> of the chip.  When this limit is exceeded Xorg will crash on start.  Actually
> for the majority of i915 family chips the real limit is 4096 which is more
> than enough for current monitors in side-by-side mode.  The patch which
> follows ups the limit for the appropriate chipsets.  This patch has been
> validate by and comes from Intel.
> 
> This missed 2.6.31-rc4 and is expected to make it upstream for v2.6.31.
> However without this change we are unable to continue testing of dual-head
> configurations which is a pain point the X team is trying to improve
> currently.  As this is being hit in the wild and inhibiting testing I am
> proposing we pull it into Karmic ahead of its acceptance into mainline.
> 
> -apw
> 
> Keith Packard (1):
>   UBUNTU: SAUCE: drm/i915: Allow frame buffers up to 4096x4096 on
>     915/945 class hardware
> 
>  drivers/gpu/drm/i915/intel_display.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> 

ACK

-- 
Tim Gardner tim.gardner at canonical.com