[xorg-edgers] xserver-xorg-video-intel causes no login screen

[modolo]

Hello

After the latest updates (xserver-xorg-video-intel: amd64 (2.99.917 + git20150127.4bbd1023-0ubuntu0sarvatt ~ utopic)
xserver-xorg-video-intel: amd64 (2.99.917 + git20150128.2e7ae760-0ubuntu0sarvatt ~ utopic)) strange behavior started to happen.
After the lock screen, the display dims, the mouse cursor appears and you can no longer unlock the screen.
I noticed that changing to a new terminal with CTRL + ALT + F1 and then (no need to authenticate) returning with ALT + F7 you can again unlock the screen.
Reverted to version 2: 2.99.914-1 ~ exp1ubuntu4.2 the xserver-xorg-video-intel package and everything normalized, for now I'm keeping this package on hold until the problem is resolved.
This behavior was repeated on three different machines, the machine that more use is a samsung laptop.

Modolo @ nibiru: ~ 'uname -a
Linux nibiru 3.18.5-031805-generic # 201501292218 SMP Fri Jan 30 03:19:17 UTC 2015 x86_64 x86_64 x86_64 GNU / Linux

P.S.: I try the last version xserver-xorg-video-intel - 2:2.99.917+git20150129.58fe4089-0ubuntu0sarvatt~utopic but the problem persists.

Thanks,
Marcelo Módolo