First post, by xnplater
Background:
While I am happy with VEXP on my Tecra 710CDT, I am trying to expand the functionality of the utility to laptops with 1024x768 panels, and eventually also to other similar chips from that era. I believe there is a use case for that, e.g. search.php?keywords=VEXP+1024
My approach
The VEXP code is not available. I therefore decided to write from scratch a similar utility (which I unoriginally call VSTR) based purely on the available data sheets: https://github.com/hmatejx/vstr.
The utility already works for 800x600 so for me it is a drop-in replacement for VEXP. It does not implement all VEXP functionality like the alternative text modes or TSR mode, but I can easily add those later if there is really a need for that.
In general, there are many register setting combinations that need to be tweaked just right to get the chipset to do scaling of video modes. I think this is the main reason why VEXP is not working on 1024x768; some specific register settings that work nicely at 800x600 may simply be holding the scaling from kicking in, even when enabled.
How can you help?
I don't have any CT6555x-based laptop with a 1024x768 panel to test. Would anyone be willing to do some testing to see if this is feasible?
