Michael =?iso-8859-1?Q?B=E4rwolff?= <mb@g-zwo.de> said;

> I have got an DEC3000/300L from a friend and a Monitor VRT16-HA
> (GDM1661) in the basement. 
> Problem is that the framebuffer (CXT) on my DEC 3000/300L only provides
> a resolution of 1024x768@72Hz and my monitor only likes 1280x1024@72Hz.
> Is there any possibility to modify the onboard CXT-framebuffer to
> provide 1280x1024@72Hz?

300L model was added later in product family probably to replace DECstation
5000/2x.  I'm afraid it's impossible to have "larger" framebuffer memory in
that model.  I have no clue this moment about how Andy approached "dual
head"-ness of Xserver which may provide :0.1 screen besides :0.0.
BTW, CXT == HX.

Tohru Nishimura