I can confirm it on a Sony Bravia KDL-40W4000, a 40" TV that is reported as a 70". The same goes for my pioneer receiver which forwards a 70" screen.
$ cat /var/log/Xorg.0.log | grep size [ 20.072] (II) intel(0): #0: hsize: 1280 vsize 1024 refresh: 60 vid: 32897 [ 20.092] (II) intel(0): Using exact sizes for initial modes [ 20.589] (II) intel(0): Setting screen physical size to 508 x 285
I can confirm it on a Sony Bravia KDL-40W4000, a 40" TV that is reported as a 70". The same goes for my pioneer receiver which forwards a 70" screen.
$ cat /var/log/Xorg.0.log | grep size
[ 20.072] (II) intel(0): #0: hsize: 1280 vsize 1024 refresh: 60 vid: 32897
[ 20.092] (II) intel(0): Using exact sizes for initial modes
[ 20.589] (II) intel(0): Setting screen physical size to 508 x 285