touch-packages team mailing list archive

[Launchpad Bug Tracker <1382494@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug:

[Testbed]
Hardware:
A Haswell platform laptop with an Amd Radeon R7 M265 graphics card. Connect an external monitor via HDMI port.
Software:
Ubuntu 14.04
xserver-xorg-video-intel 2:2.99.910-0ubuntu1.1

[Reproducer]
1. Press FN + hot key to change the display mode.
2. Watching the built-in monitor.

[Expect result]
there should be 4 modes:
Internal only  -> extended mode -> mirror mode -> external only

[Actual result]
mirror-mode  ->  extended mode  ->  *black mode*[1]  twice ->  mirror mode  -> internal only  ->  external only

[1]: black mode means, the screen is black, backlight works well.
Nothing displayed. Only cursor showed. It moves if I touch my mouse.

[How reproducible]
100% with my laptop.

[old version?]
after downgrade to xserver-xorg-video-intel 2:2.99.910-0ubuntu1, the issue can not be reproduced. So I suppose it's a regression issue.

** Affects: xorg (Ubuntu)
     Importance: Low
         Status: Incomplete

-- 
 unexpected black screen when changing display mode.
https://bugs.launchpad.net/bugs/1382494
You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu.