disable vbe mode listing [fixes #29]

[stsp]

It turns out mode listing hangs when KMS is used.
As vbe modes is not a very important info, it is better to
disable it.

[wfeldt]

Stas, I'm aware of your pr; just haven't had time so far. Will check when I'm back from vacation.

[wfeldt]

There seems to be some uses of this mode listing left, so I'd rather leave it in, if possible.

I've changed the code now to block all i/o while getting the mode lists. This should prevent issues of libhd crashing the system at the cost of maybe sometimes not getting the mode list.

If that doesn't work as expected (I'm very interested in feedback here) I'll just disable mode listings when kms is active (as it 's done already for reading ddc info).

[stsp]

No, there was no whole system crash.
Just locked up hwinfo doing some port IO.
So I really see no reason to disable the IO
unless someone else reported the system
hang.

Also the problem is, I can't reproduce this
any more. I did make clean and rebuilt
without git pull but the problem is not there.
As you can see from the similar report here:
http://bugs.rosalinux.ru/show_bug.cgi?id=7299
the problem depends on the kernel version,
so I guess this was fixed.
I wonder though why you put *.o into
.gitignore - this prevents git clean -f
from working as expected.

[wfeldt]

I was just working on an issue where it crashed the whole system. So I've taken the real hardware accesses out as far as possible and it seems to work ok so far.

I wonder though why you put *.o into .gitignore - this prevents git clean -f from working as expected.

True enough; I'll clean up .gitignore.

[profi248]

Tt