Re: Lost hardware acceleration from >=drm-515-kmod for Cherryview and Valleyview i915kms

On Sun, Jun 07, 2026 at 02:42:13PM +0200, Roger Olofsson wrote:
> Hello everyone!
> 
> [...]
> 
> On a 14.1-RELEASE with drm-510-kmod the hardware acceleration works.
> On same 14.1-RELEASE with drm-515 the hardware acceleration does not
> work.

Hello Roger,

This is not surprising: Linux code only regresses with time and higher
version numbers.  If you must use Linux code (as we all are with DRM)
my best advice is to stick to the lowest version which works.

> I am aware that 14.1 is an unsupported system but it's the last known
> RELEASE that is supported by drm-510-kmod. Also drm-510-kmod is about
> to vanish, it's clinging in ports 2026Q2.

Nothing prevents you to checkout drm-510-kmod after its removal and keep
using it during the 14.x timeline.  HTH,

./danfe