tree 06f5175444fa761a73055cfa0bb96c296dda121e
parent d3189545ee69527e949769b89a4cbb331de97b4a
author Bernie Thompson <bernie@plugable.com> 1313958938 -0700
committer Florian Tobias Schandinat <FlorianSchandinat@gmx.de> 1314180753 +0000

udlfb: Enable fb_defio by default

Enables page fault based detection of mmap writes to the framebuffer,
which allows standard fbdev apps (like the generic fbdev xorg driver)
to work on DisplayLink devices.

Not all bugs are shaken out of the fb_defio path of udlfb, but it's
tantalizingly close, so this seems a good time to enable by default.

Alternatively, option can be disabled when running with an xorg driver
that can more directly communicate damaged regions of the framebuffer
via IOCTL. This is a simpler, higher perf option, when available.

Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>