Unity Going Forward

Colin Law clanlaw at googlemail.com
Thu Aug 23 12:35:17 UTC 2012

On 20 August 2012 19:20, Colin Law <clanlaw at googlemail.com> wrote:
> On 20 August 2012 00:30, Jason Warner <jason.warner at canonical.com> wrote:
>> Hi Colin -
>> On Sat, Aug 18, 2012 at 6:08 AM, Colin Law <clanlaw at googlemail.com> wrote:
>>> On 17 August 2012 01:51, Jason Warner <jason.warner at canonical.com> wrote:
>>> > ...
>>> > But there is a cost to this decision. Unity 2D fit a very specific use
>>> > case
>>> > in very low-end and non-GPU accelerated hardware. By consolidating to
>>> > Unity
>>> > using LLVMpipe for this specific use case we expect to see some
>>> > regressions
>>> > in systems supported. This means that a certain class of hardware will
>>> > no
>>> > longer be supported to run Unity. Unity will run on all GPUs that
>>> > support
>>> > OpenGL 2.0. The earliest GPUs that meet this requirement are at least 5
>>> > years old[1]. Even so, we know some subset of cards and hardware that
>>> > could
>>> > previously run Unity 2D will no longer be able to run Unity.
>>> A heads up to make sure that the case of dual monitors with i945
>>> graphics chipset (and possibly others) has been considered.  That
>>> chipset will only run 3d if the virtual desktop is less than 2048
>>> pixels wide so when an external monitor is plugged in only unity-2d
>>> will run at the moment.  If the external monitor is not plugged in
>>> then 3d is ok.  Having removed unity-2d the software will have to cope
>>> with plugging in the external monitor in some way.  Note that this is
>>> an issue for laptops made only a few years ago (Toshiba Satellite for
>>> example).
>> Is there an bug for this? if not, please file one so we can track it.
>> Thanks.
> https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1039051

That bug has been marked as a duplicate of #824099, Max GL texture
size can break multi-head [1], which is marked Won't Fix.  Can anyone
explain why this capability will not be provided by llvmpipe on

[1] https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/824099


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