In addition to using an older Intel CPU, CyberLink also advises people not to upgrade to Windows 11 to avoid having the needful drivers replaced. "So much so, that it has been determined that it is no longer feasible for CyberLink to support the Ultra HD Blu-ray playback on newer CPUs and the latest Windows platforms." "The removal of the SGX feature, and its compatibility with the latest Windows OS and drivers, has caused a substantial challenge for CyberLink to continue supporting Ultra HD Blu-ray movie playback in our player software." - details the FAQ page. Skylake (6000 series) has SGX but misses HDCP 2.2, and that would cause hurdles with HDMI 2.0 transmission.ĬyberLink, the company behind the "PowerDVD" software product, has updated its FAQ to reflect the problem with newer gen Intel processors, claiming inability to resolve it in any way. The issue impacts Ultra HD Blu-ray discs that use DRM, so if the Blu-ray Disc Association ever decides to lift the strict protections, the playback will return to nominal resolutions (3840 x 2160).Īlso, since SGX was removed in recent chip generations, users who would like to avoid problems can stick to using 7000, 8000, 9000, or 10000-series CPUs. In summary, Intel had more to gain from SGX's deprecation from the perspective of security.Ĭonsidering that most users don't care about Blu-ray playback on the PC, taking that decision must have been straightforward. the SGAxe attack on the CPU cache resulting in the leak of the enclave's content.the so-called "Plundervolt" injection attack,.an Enclave attack discovered by researchers in 2019,.a Spectre-like attack disclosed in 2018,.the Prime+Probe attack discovered in 2017,.Intel's datasheet for 12th gen CPUs Why did Intel abandon SGX?Īs a secure enclave technology, SGX was commonly targeted by security researchers who discovered numerous vulnerabilities and attack methods.Įxamples of attacks targeting Intel SGX include:
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