yes i used that scale : VESA Modes:
11: wxga (1280 x 768) which is the best suitable resolution for my screen and ps3 connected to tv's HDMI Port 1 but no sound coming with this resolution..and i can use all the other options except 12: sxga (1280 x 1024) and 13: wuxga (1920 x 1200) but not properly fit to the screen i mean there are spaces left corners..isnt there a solution for this?
secondly i can access
http://portal.gitbrew.org/wikibrew/PS3:Linux via googles framebuffer technic

and see ubuntu section but it goes so long and needs soooooooo many commands
How can I install ps3rsx.tar.gz via lxterminal screen with using make command

Can you write here all the commands for us because there is no where showing this on the net..
I firstly have done sudo apt-get update and upgrade and downloaded just around 30 mb and some repositories not working there is nothing so much for PPC i think.. for instance how can we install flashplayer plugin for PPC ?then I downloaded VLC Player working but this time picture's not coming and sounds come even all plugins and codecs installed..
now i want to download gnome desktop via synaptic but its around 480mb

and not sure if its working fast and properly with this kernel..
and at last i like your picture in your changing screen resolutions on Debian GDM3 post with two console like me

i feel sure SONY loves it so much..