[PATCH 0/2] Fix GPU screen handling for drivers with no normal screens

[Alex Deucher]

On Tue, Dec 30, 2014 at 12:13 PM, Aaron Plattner <aplattner at nvidia.com> wrote:
> I noticed the problem fixed by the first patch while debugging a problem with
> the Intel driver in a system using Prime.  See that patch for a description of
> what is going wrong there.  Unfortunately, Prime configurations are relying on
> that loophole because they need a GPU screen for the Intel device, and the X
> server refuses to create one unless there's also a normal X screen using that
> same driver.  The second patch fixes that by allowing drivers with no normal X
> screens to have GPU screens created for them anyway.  In most cases, this will
> end up using the modesetting driver for any platform devices that are not
> claimed by another driver.
>
> Given the above, please consider these patches together.

I'm not too familiar with the code in question, but the logic seems
sound and the patches make sense.  Series is:

Acked-by: Alex Deucher <alexander.deucher at amd.com>

>
> Aaron Plattner (2):
>   xfree86: Fix xf86_check_platform_slot's handling of PCI
>   xfree86: Add GPU screens even if there are no active GDevs
>
>  hw/xfree86/common/xf86platformBus.c | 20 +++++++++++++++-----
>  1 file changed, 15 insertions(+), 5 deletions(-)
>
> --
> 2.2.1
>
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