Bug #13574
loader.efi: efifb_gop_get_edid() is broken
Start date:
Due date:
% Done:
90%
Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
Description
First of all, we need gop handle, not protocol to read out the EDID. Then, to simplify our life, use EFI_OPEN_PROTOCOL_GET_PROTOCOL. This allows us to save from cleanup.
Also add back fallback to EFI_EDID_DISCOVERED_PROTOCOL_GUID, even as EFI_EDID_ACTIVE_PROTOCOL_GUID should do, we never know.
Testing done: confirm with framebuffer get, we do have EDID.
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