Hi Chris, You are right and thanks for the xrandr suggestion. I tried plugging my laptop into other tvs (LG and Samsung) and they have a 'just scan' option and it worked great, which pretty exonerates the intel chip/driver from being the culprit. Also, I think the horizontal/vertical scaling options in the intel GMA widget in windows is doing basically the same thing as your xrandr suggestion. I'm returning the Sony tv and switching to LG/Samsung. Thanks, Josh
On Sun, May 1, 2011 at 11:30 PM, Chris Wilson <[email protected]> wrote: > On Sun, 1 May 2011 22:29:56 -0700, Joshua Redstone <[email protected]> wrote: >> Hi intel-gfx, >> I have a Lenovo T500 laptop with a GM45 graphics chip. Under Ubuntu >> 11.04 (which shows intel Xorg driver version 2.14.0 in >> /var/log/Xorg.0.log), when I connect an external LCD tv (sony bravia >> 46ex620) to the laptop via HDMI at 1080p, the 1920x1080 image on the >> tv extends beyond the borders of the tv by about 10%. >> What option can I set in the intel driver to tell it to send the raw >> 1920x1080 image without scaling it? > > Your TV is overscanning. Either read the manual for your TV to see if > there is a way for it to present the raw signal on the visible portion of > the screen or set up an xrandr transformation matrix to scale the output > similarly. > > It may be possible to repurpose the panel fitter to do this (on some > chipsets, i.e. depending upon hardware availability and flexibility) and > so achieve an efficient high quality downscaling, but that will require a > new interface for the ddx to pass the xrandr translation+scale matrix down > into the kernel. > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre > -- Josh _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
