> On Sun, Sep 2, 2012 at 11:31 AM, Alasdair <ali...@btinternet.com> wrote:
>> After git pull (sg,fg,fgdata) a couple of days ago, I was presented with a
>> strange screen which I had not seen before. My regular was shown as a
>> sub-screen in the bottom-left corner. Clicking the maximise widget restores
>> full screen, but any click on a menu item returns me to this stupid screen.
>> Is this infuriating behaviour deliberate, or has my graphics driver gone
>> walk-about?
>>
>> https://dl.dropbox.com/u/15936159/fg_quarter-screen.png

Unfortunately a long standing issue. This affects ATI graphics cards 
when running newer drivers. It can be "fixed" by reverting to an older 
ATI driver (see link below). To me it looked like a genuine OSG or ATI 
driver bug (the size of the graphics view port doesn't properly resize 
to the size of the window), but it's likely triggered by something 
"special" we're doing in FG, since other applications don't seem to have 
this issue.

Also, it's timing-/sequence dependant: it only affects certain aircraft 
(aircraft using wxradar, which changes/delays the OSG init sequence on 
startup, are less likely to have the issue) - and for some people it 
dis- and reappears with certain FG builds.

It would be really good if someone seeing the issue locally could 
properly debug this - even if it means digging into OSG - since a larger 
number of people are affected. I tried "remote debugging" this a while 
ago, but gave up after being unable to narrow it down inside FG. Maybe 
someone else has better luck.

For more see here:
http://code.google.com/p/flightgear-bugs/issues/detail?id=385

cheers,
Thorsten

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