It would solve the green/black screen issues the Core i7 system has enough CPU power to decode even computationally intensive H.265, so H.264 decoding would be easy.Ĭard name: ATI Radeon HD 4300/4500 Series 8.970.100.9001) to appear dumber than it is and let OS think that it simply does NOT support H.264 hardware-accelerated decoding (much like it does not H.265)? Probably the root cause is that WDDM 1.1 driver (the latest available) works fine on Windows 7, but later OSes adopted WDDM 1.2 “video playback improvements” (, ) the OS believes that Radeon HD 4350 driver can assist with H.264, but cannot correctly take advantage of the Hardware Acceleration due to OS changes introduced in WDDM 1.2+.ĭoes anybody know, is there a way to make Radeon HD 4350 WDDM 1.1 driver (ver.
It seems that the problem is caused by WDDM 1.1 driver that signals to the OS that it supports Hardware Acceleration for H.264, but cannot deliver.įor newest H.265, the old GPU/driver could not possibly offer any Hardware Acceleration, so Windows 10 does software rendering and everything works fine. Videos encoded by the older H.264 (“avc1”) codec show either green or black screen (depending on app), only audio track is played. Videos encoded by the newest H.265 (HEVC) codec play fine on my Core i7 3Ghz + Radeon HD 4350 system, in Windows Media Player 12 or “Movies & TV” built-in app.
