Man page for fbdev is missing and amn page for fbset says it is obsolete and unreliable.
Still an issue. The original 1-year old tarball has the same shortcomings though :)
man page is now present, but it may still be outdated.
Still true in 8.0 about obsolete page
Man page for fbdev is now present in recent distributions. I contacted Geert Uytterhoeven (the fbset upstream maintainer) and he wrote me that the fbset-2.1 release was the final one, so the development of it was stopped. This is the reason why I'll close this bug WONTFIX. Jindrich