PS3 PS3 CECHA01 BLACK SCREEN WITH SOME PS2 PAL GAMES

[baubab204863]

some months ago i bought a cecha01 (I'm from Italy) with 4.86 rebug cfw. I've tried to play my pal games (PHYSICAL) and a lot of them play fine on 1080p. However on some of them, after the start cutscenes, i'm stuck with a black screen. The only way to play them, i found, is to set the ps3 to 480p and then then they work fine. I cleaned my ps3, replaced thermal paste and installed webman. temperatures are fine and the console is awesome but after all these months I still can't understand why some games work with 1080p and some don't.
Some games that give me black screen are : Drakengard(PAL),Indiana Jones Emperors Tomb(PAL),Enter the matrix(PAL),Spiderman(PAL)

 

[massoni]

some months ago i bought a cecha01 (I'm from Italy) with 4.86 rebug cfw. I've tried to play my pal games (PHYSICAL) and a lot of them play fine on 1080p. However on some of them, after the start cutscenes, i'm stuck with a black screen. The only way to play them, i found, is to set the ps3 to 480p and then then they work fine. I cleaned my ps3, replaced thermal paste and installed webman. temperatures are fine and the console is awesome but after all these months I still can't understand why some games work with 1080p and some don't.
Some games that give me black screen are : Drakengard(PAL),Indiana Jones Emperors Tomb(PAL),Enter the matrix(PAL),Spiderman(PAL)

I have the same black screen issue with enter the matrix with my cfw bc ps3. Anyone have any suggestions on how to fix this?