[Vm-dev] Re: [unix] X11 display problem (was: Shrinking windows
when Scratch is run on 4.4.7-2357 VM, Ubuntu 12.04 64bit)
amos at scratch.mit.edu
Tue Jul 24 17:51:13 UTC 2012
Previously I thought this bug only happened on 64 bit installations of
Scratch, but we've since seen it on 32 bit installations as well. It
appears to happen only in Ubuntu's 12.04's (normal) 3d mode. If I login in
2d mode, window Scratch's window resizes just fine on my machine.
I've filed a bug against Scratch in Ubuntu.
On Thu, Jun 7, 2012 at 8:50 AM, Bert Freudenberg <bert at freudenbergs.de>wrote:
> On 07.06.2012, at 14:44, Amos Blanton wrote:
> The shrinking only happens on my 64 bit system (12.04 LTS). Any resizing
> of the window (larger or smaller) triggers it.
> You mentioned earlier that there were outstanding issues with ia64, so
> it's not too surprising. Actually - so far this and problems with the
> pulse-audio plugin are the only issues I've encountered running Scratch on
> the 64 bit VM. Seems quite promising!
> You might want to check the resizing math. IIRC the VM tries to snap the
> window width to the next multiple of 4. Maybe that is not stable if a word
> is not 4 but 8 bytes long.
> - Bert -
> On Thu, Jun 7, 2012 at 8:16 AM, Bert Freudenberg <bert at freudenbergs.de>wrote:
>> On 05.06.2012, at 21:49, Amos Blanton wrote:
>> > On Tue, Jun 5, 2012 at 2:45 PM, Bert Freudenberg <bert at freudenbergs.de>
>> >> What was the Squeak display size before resizing? (print Display)
>> > wmctrl says it's: 1024 x 767.
>> That's odd ;)
>> >> What's your screen resolution, graphics card, and window manager?
>> > My laptop is docked, driving a display at 1680 x 1050 via hdmi, and its
>> normal screen (1366 x 768), is turned off.
>> > Graphics card:
>> > 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation
>> Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00
>> [VGA controller])
>> > Subsystem: Lenovo Device 21da
>> > Window Manager must be Unity/Gnome/ Compiz, or whatever is standard on
>> Ubuntu 12.04.
>> > I should note that the testing I did on 32bits Ubuntu 12.04 was done in
>> Virtualbox VM, using Miry's latest package:
>> I do not see the shrinking problem in Virtual Box using Ubuntu 12.04 LTE
>> 32 bits, fully updated. How exactly would I have to resize to trigger that?
>> I DO see the black window problem when clicking the maximize button in
>> the window title bar. It also happens in Etoys (see
>> http://tracker.squeakland.org/browse/SQ-400 ).
>> - Bert -
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