[ltp] Re: X60 produces fuzzy VGA output in high resolutions - will Ultrabase help?
Stefan Monnier
linux-thinkpad@linux-thinkpad.org
Mon, 13 Apr 2009 11:53:14 -0400
>> I expect LCD monitors do not advertise modes with higher refresh rates
>> in their EDID info.
That's true. You'll probably want/need to use a hand-cooked modeline.
> The bandwidth is limited, as you increase resolution, you have to drop the
> refresh rate to keep within the limited bandwidth.
Of course. That's why I mentioned my 10-years old experience. I'd hope
things haven't gotten much worse in the mean time.
> This is far worse on DVI than VGA as far as the connection goes, but the
> monitor and GPU themselves have output bandwidth limitations (maximum pixel
> clock, etc).
The GPU should be at least as fast as my old Matrox card. AFAIK, a DVI
connection can handle 1920x1200x60Hz, so it should definitely keep up with
70Hz at 1680x1050. As for the monitor, I wouldn't know, but would hope
it can keep up as well.
Stefan