Hi,

Grandma's house was last painted in the late seventies of early
eighties. It still looks good in most areas, except a certain wall has
a bubbling look and some paint has broken off in the top corner. Under
the paint I see a brown paper. It reminds me of construction paper in
texture.

I need advice on how to prepare and paint this wall.

I figure I will need to scand the wall, espeially in the places of the
loose paint. The I can paint over the wall.

BUT, I worry that this is a sign of drywall damage, or maybe wallpaper
deep under the paint?

Thanks,
Jim