On 7/19/2012 12:14 PM, Kent A. Reed wrote: > On 7/19/2012 11:08 AM, Jon Elson wrote: >> Lester Caine wrote: >>> The 'problem' is with the graphics 'chipset' used. >>> But Intel do not even specify which one is fitted to the D525MW on >>> the website, >>> it just says VGA port >> But, we KNOW, by exhaustive testing, that the D525 works fine with the >> 10.04 LinuxCNC >> install, I have never heard of a problem with that combination. >> >> Jon >> > > Gentle persons: > > The devil is in the details. As I read the raft of recent messages > about the DN2800MT and other Intel Atom-based motherboards I am struck > by how little actionable information they provide. Come on folks, take > time to document the system you are complaining about. To quote my > wife, "be specific to be terrific." > > The specific graphics issue with the DN2800MT is that it does NOT use > an intel graphics controller. Rather, Intel chose to embed a PowerVR > SGX 545 GPU. Not just Linux drivers, but lots of A/V related drivers > in various Windows O/S releases are having trouble putting this > proprietary GPU into its advanced modes. As Andy has said repeatedly > this does not affect the DN2800MT's ability to run in non-accelerated > 2D VGA mode; hence it should (I don't have one at hand so I can't > check myself) run LinuxCNC as well as do some of my old dumpster > boxes. Whether the board is a good choice depends on its intended use. > > ... > > Regards, > Kent >
As a follow-on to my first response... In looking back tonight through past emc-user email traffic I found and only then remembered that the thread on the Intel DN2800MT started back in May or so. (Sorry folks, my life has been so helter-skelter lately I not only forgot the beginnings of this thread, I forgot I'd contributed to it back then.) Lester had also reported problems with the Intel D2500HN board. I remember I was bummed at the time because I liked the board's inclusion of a parallel-port connector but I wasn't too worried since naively I thought the problems would be transitory. This is because all the Intel product descriptions asserted this board (well, really its D2500 Atom processor) includes Intel GMA 3600 graphics. Naturally, thought I, Intel would be as diligent on drivers for GMA 3600 graphics as they had been for previous Intel GMA graphics, such as for the GMA 3150 graphics on the D525MW board. Silly me. It turns out that all the D2x00 and N2x00 Atom processors include graphics subsystems based on the proprietary PowerVR SGX 545 GPU design (see, e.g., http://en.wikipedia.org/wiki/Comparison_of_Intel_graphics_processing_units). This includes the D2500, N2600, D2700, and N2800 chipsets. No wonder so many recent netbook buyers have been up in arms. Using the VESA driver with these boards will give acceptable performance in some applications but not in others. Caveat emptor. Regards, Kent ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
