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

[Bob Nelson]

On Saturday 05 January 2008 04:03:41 pm Julio M. Merino Vidal wrote:
> On 05/01/2008, at 22:17, Geert Uytterhoeven wrote:
> 
> > On Sat, 5 Jan 2008, Julio M. Merino Vidal wrote:
> >> On 05/01/2008, at 18:28, Jim Paris wrote:
> >>> Julio M. Merino Vidal wrote:
> >>>> 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...
> >>>
> >>> Sounds like overscan.  According to the user manual available at
> >>>
> >>>   http://www.benq.ca/support/downloads/downloads.cfm?
> >>> product=884&page=downloads&dtype=M
> >>>
> >>> there is an monitor option in your "picture advanced" menu to turn
> >>> that off.
> >>
> >> Hmm... but why can't the hardware and/or software show the image
> >> correctly?  I can understand the need for overscan in the past, but
> >> with flat panels and digital connections?  And also considering that
> >
> > Originally 480/576i, 480/576p, 720p, 1080i, and 1080p were analog  
> > broadcast
> > resolutions including overscan.
> >
> > Most (all?) displays I encountered so far have pixels falling off  
> > the borders
> > of the screen when using fullscreen modes.
> >
> >> the laptop is able to show 1920x1200 without issues...
> >
> > If 1920x1200 works with your flat panel, I would use that instead  
> > of 1080p.
> 
> Hmmm, but can ps3-linux use that format?  I thought it couldn't (i.e.  
> it was restricted to 16:9 formats), but otherwise that'd be good news!
> 

I had almost the exact same thing on my Sharp 42" at 1920x1080 connected
to a PC DVI output with a DVI-HDMI cable. I found a setting on the TV
setup labeled under "view mode" or something like that called "dot by dot"
that fixed the overscan.

Bob