Dne torek, 14. december 2021 ob 13:02:48 CET je Emmanuel Gil Peyrot napisal(a): > Hi, > > After updating Weston from 9f8561e9 to 07326040 (latest master), it > fails to run on my PinePhone saying “format 0x34325258 not supported by > output DSI-1” and then exiting. > > This format is XR24, which would be extremely surprising not to be > present, and drm_info[1] says it is present. Looking into Weston’s > code, I found that drm_plane_populate_formats()’s docstring says it uses > “either the IN_FORMATS blob property (if available), or the plane's > format list if not.” Looking back at drm_info, I saw said IN_FORMATS > blob being empty of formats (while the format list is fully populated): > "IN_FORMATS" (immutable): blob = 32 > └───DRM_FORMAT_MOD_LINEAR (0x0) Does this solve your issue? http://ix.io/3Ipo Best regards, Jernej > > This makes me think the kernel should populate IN_FORMATS with at least > the same formats as the format list when supported, or stop advertising > this property altogether. > > Other compositors (such as phoc) still run file, probably because they > use the format list exclusively, without consideration for modifiers. > > Besides fixing this driver, would it make sense to also make Weston > ignore an empty IN_FORMATS and fall back to the format list? > > Thanks, > > [1] https://github.com/ascent12/drm_info > > -- > Emmanuel Gil Peyrot >
