[Intel-gfx] ✗ Fi.CI.IGT: failure for drm/i915: Per-crtc/connector DRRS debugfs (rev2)

[Ville Syrjälä]

On Sat, Oct 01, 2022 at 11:23:17PM -0000, Patchwork wrote:
>   * igt at kms_frontbuffer_tracking@fbcdrrs-slowdraw (NEW):
>     - shard-tglb:         NOTRUN -> [FAIL][2] +12 similar issues
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_109175v2/shard-tglb2/igt@kms_frontbuffer_tracking@fbcdrrs-slowdraw.html

shard-tglb passes most DRRS tests but fails a few. The reson looks to be
that we have a VRR panel rather than a DRRS panel:
using preferred EDID fixed mode: "1920x1080": 90 214000 1920 1936 1952 2104 1080 1083 1097 1128 0x48 0xa
using alternate EDID fixed mode: "1920x1080": 40 214000 1920 1936 1952 2104 1080 1083 1097 2532 0x40 0xa

The kernel still reports that the connector can do seamless DRRS
since it only checks that we have a multiple refresh rates available.
I guess I could try to tighten up that check a bit and make sure
we have a at least two modes suitable for DRRS in there...

-- 
Ville Syrjälä
Intel