H. Peter Anvin wrote: > yhlu wrote: >> On 5/8/07, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote: >>> Since the whole point is to detect the case where we don't have >>> a screen at all it makes sense to check several additional variables >>> and make certain that they are all 0. Agreed? >> need one good way to find if there is support vga console. > > There really isn't one, at least not given the current data structure; > the data structure has an "isVGA" flag, but if that is 0 it's supposed > to mean CGA/MDA/HGC/EGA, as opposed to VGA... Of course, one could argue that since all of those were obsolete by the time Linux was first created, that it probably doesn't matter and that isVGA == 0 pretty much means the more obvious thing. MDA/HGC stuck around for quite a while for debugging, since it was non-conflicting with VGA, but even if it is, the reason people put it in their system is to have something that the OS doesn't readily see. -hpa _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
