Hi Colin - On Sat, Aug 18, 2012 at 6:08 AM, Colin Law <[email protected]> wrote:
> On 17 August 2012 01:51, Jason Warner <[email protected]> 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. > > > > > For these cases, we are actively working on Unity running through > LLVMpipe > > which is a work in progress. Unity through LLVMpipe is CPU bound which > means > > systems with decently modern CPU architectures and non-GPU accelerated > > hardware should be able to run Unity. As I mentioned, this approach is a > > work in progress as we tweak the experience and effects to maximize the > > performance. We expect this to shake out over the rest of this cycle and > > bleed into 13.04 as well[2][3]. > > Is it correct that at the moment a machine that will not run 2d will > not run at all after todays update? This seems to be the case for me > at the moment, I see no unity shell on screen and in .xsession-errors > I see > compiz (unityshell) - Error: OpenGL 1.4+ not supported > > When can I expect llvmpipe to start working so I know whether to log bugs? > The rought ETA is sometime just after FF, so adding some time for testing and shakeout, it might be closer to beta1. > > Colin Law >
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