Hi, I am trying to get my Samsung Odyssey Neo G8 to run on 3840x2160@240Hz over HDMI 2.1 (Linux 7.2-rc2), but that mode does not show up.
I noticed that the EDID only contains block 0 and 1, even though the HF-EEODB specifies an extension block count of 3. >From my reading, the EDID parsing code in 'drivers/gpu/drm/drm_edid.c' does respect this override as far as i can tell. However I also found some code that appears to be copying / truncating the EDID in 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c:1208' (function: 'dm_helpers_read_local_edid') without accounting for this override. I am new to kernel-level development, so I apologize in advance if I am misunderstanding the intended flow here. Could this be the reason for my incomplete EDID? The kernel does not log any EDID-related errors or warnings, so I am not sure whether this is expected behavior or a bug. Please keep me on Cc; I am not subscribed to the list. Thanks, Timo Prömer
