[Cbe-oss-dev] Problems getting 1080p in the PS3

[Julio M. Merino Vidal]

Hello,

I just bought a BenQ FP241WZ flat panel which is capable of 1920x1200  
and has HDCP.  I have hooked it up to my PS3 through the HDMI  
connection.  However, when I boot a Linux kernel from the ps3-linux  
branch, I only get a resolution of 1688x964 that covers the whole  
screen (minus the black margins due to the 16:10 vs. 16:9 aspect  
ratio difference, which is OK), instead of the 1920x1080 I should be  
getting.

If I force the kernel to boot into 1920x1080 by specifying  
video=ps3fb:mode:170, then the framebuffer image goes off the screen  
in all of the four borders, as if the screen was only capable of  
showing 1688x964 pixels...

Any idea about why this is happening?  The screen actually tells me  
that it is in 1080p video mode in both cases.  And, FWIW, the laptop  
I have hooked to the monitor through the DVI connection properly  
works in 1920x1200 mode.

Thank you,

PS: The Game OS seems to shows similar problems, so I *think* this is  
not exclusively ps3-linux's fault (or maybe both OSes have a problem,  
or maybe it's the firmware who has a problem).  However, I bet  
someone here will know where the problem lies exactly, and hence it's  
why I'm asking.  Sorry if this is not really suitable to this forum.

-- 
Julio M. Merino Vidal <jmerino at ac.upc.edu>