I'm informed the three commits that require backporting for D0 support
are:
b545e78f12b v3dv: support 2712D0
1fc846dce39 v3d: support 2712D0
7b807c3e948 broadcom/cle: fix up shader record for V3D 7.1.10 / 2712D0
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https://bugs.launchpad.net/bugs/2082072
Title:
Mesa bump to 24.2 required for Pi 2712D0 stepping
Status in mesa package in Ubuntu:
Confirmed
Status in mesa source package in Noble:
Confirmed
Bug description:
The Raspberry Pi 5 2GB model now uses the D0 stepping of the 2712 SoC.
Unfortunately, this is only supported from Mesa 24.2.0 (see
https://docs.mesa3d.org/relnotes/24.2.0.html -- search for 2712D0).
The result is corrupted or blank output for the current Ubuntu 24.04.1
Pi desktop (using Mesa 24.0.9). The forthcoming oracular desktop does
work as far as login goes, but snapped applications are still relying
on an older mesa, thus the software center, firefox, and thunderbird
all fail to operate.
Although the D0 is only on the 2GB model *currently*, it is
anticipated to become common to the entire Pi 5 line up going forward,
and will be present on the forthcoming CM5.
Could we investigate either bumping mesa in noble, and the
corresponding content snap, or finding the minimal patch-set necessary
to support the D0 stepping and back-porting that?
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