Comment 24 for bug 753971

Revision history for this message
Daniel Manrique (roadmr) wrote : Re: Display garbled upon restoring original resolution or connecting external displays

Hi all,

Apologies for the delay testing this.

First, without upgrading, I reproduced the bug by changing resolution to 800x600, waiting 5 seconds, and switching back up to 1366x768. With the OLD version of Unity, the bug still occurs as reported.

Then I used the ppa to upgrade unity and libnux to these versions:

ii libnux-0.9-0 0.9.48-0ubuntu1~ppa1
ii libnux-0.9-common 0.9.48-0ubuntu1~ppa1
ii unity 3.8.12-0ubuntu1~ppa1

I used the same procedure to try and reproduce the bug on four upgraded systems (Dell Inspiron 1545, Toshiba Tecra R700, HP ProBook 6550b and Sony Vaio VGN-Z540).

On all the systems, the desktop and application windows restore correctly when coming to the original 1366x768 resolution. The only issue I could observe was that the top panel/menu bar doesn't restore; it's transparent, I can see a horizontal line delimiting its position but the background is visible where the panel should be.

The panel is very easy to restore; basically moving any window, moving the pointer to where the panel should be, or even pressing certain keys (such as PrtScrn when I tried to get a screenshot) restores the panel.

I'm attaching a picture of the "invisible" panel so you can see what I mean.

Thanks so much to everyone involved for the work you've done on this problem!