Am Sat, 20 Sep 2014 21:21:46 +0200 Koop Mast <k...@rainbow-runner.nl> schrieb:
> On Sat, 2014-09-20 at 20:13 +0200, O. Hartmann wrote: > > Am Sat, 20 Sep 2014 19:15:30 +0200 > > "O. Hartmann" <ohart...@zedat.fu-berlin.de> schrieb: > > > > > Am Sat, 20 Sep 2014 08:27:27 -0600 (MDT) > > > Warren Block <wbl...@wonkity.com> schrieb: > > > > > > > On Sat, 20 Sep 2014, O. Hartmann wrote: > > > > > > > > > Am Sat, 20 Sep 2014 07:36:21 -0600 (MDT) > > > > > Warren Block <wbl...@wonkity.com> schrieb: > > > > > > > > > >> On Fri, 19 Sep 2014, O. Hartmann wrote: > > > > >> > > > > >>> nVidia's BLOB from port x11/nvidia-driver seems to have problems in > > > > >>> FreeBSD > > > > >>> 11.0-CURRENT #2 r271869: Fri Sep 19 13:28:03 CEST 2014 amd64, on > > > > >>> Lenovo > > > > >>> ThinkPad Edge E540 laptop with CPU i5-4200M (Haswell) with > > > > >>> integrated HD4600 > > > > >>> Intel iGPU and dedicated nVidia GT 740M (Optimus) working correctly. > > > > >> > > > > >> Optimus is supposed to be full Intel graphics plus an Nvidia GPU. > > > > >> The > > > > >> extra GPU uses the same display memory and can be enabled to speed up > > > > >> the Intel graphics or disabled for power saving. I don't know if > > > > >> versions where the Nvidia section is a full discrete video adapter > > > > >> that > > > > >> can be used alone are still called "Optimus". > > > > >> > > > > >> Some Optimus owners have reported being able to use the Intel drivers > > > > >> after disabling the Nvidia GPU in the BIOS or UEFI. If an option to > > > > >> disable the Nvidia GPU is not present, some people have reported > > > > >> success > > > > >> with an xorg.conf that uses only the intel driver and ignores the > > > > >> Nvidia > > > > >> hardware. > > > > > > > > > > Thanks Warren. > > > > > > > > > > But this sounds even more frustrating now. I look around the web even > > > > > at > > > > > Lenovo's support forum. Many people report the GT 740M nVidia adaptor > > > > > as a > > > > > discrete adaptor with Optimus technology and everything sounds to me > > > > > like it > > > > > can be selected exclusively. What you describes is that I definitely > > > > > need to > > > > > use the HD4600 iGPU on FreeBSD in the first place since the nVidia > > > > > hardware is > > > > > a kind of "appendix" to the HD4600. > > > > > > > > Optimus started out that way, but they might use the same name now for > > > > models where the additional GPU is a full discrete adapter. > > > > > > I tried to retrieve informations about the settings and implementations > > > in the > > > lenovo E540, but I guess the only answer can be given by developer > > > documentation. I > > > can not figure out how the GPU is attached to the system. The technical > > > specifications do not mention the requirement of a iGPU and shared memory > > > - as > > > Optimus would require. > > > > > > But extrapolating from that "shit-covering" public relations talking at > > > nVidia's > > > site I guess the GT 740M is definitely a shared memory solution and > > > requires the > > > presence of the iGPU. That would explain why the nvidia BLOB is detecting > > > the GPU, > > > but can not find any physical display socket, not even the built-in LCD. > > > They're > > > maybe wired all throught the Haswell's HD4600 iGPU? > > > > > > > > > > > > Anyway, I also tried to configure X11 as HD4600 only and X11 doesn't > > > > > work > > > > > properly: it doesn't even start up and loading the "intel" driver > > > > > complains > > > > > about a missing device > > > > > - preceeded by a lot of /dev/dri errors. This indicates to me, in a > > > > > naiv manner, > > > > > that this HD4600 isn't recodnized by the kernel, either. I do not see > > > > > any kind > > > > > of vga0: entry in the kernel log when enabling "Integrated Graphics" > > > > > only in the > > > > > laptop's UEFI/Firmware. When enabling "nVidia Optimus", a recognized > > > > > vga0: > > > > > device shows up. > > > > > > > > Whoops, HD4600 is Haswell. The intel driver on FreeBSD does not > > > > support > > > > Haswell video yet. > > > > > > > > > I suspected that :-( > > > > > > Thanks anyway, > > > > > > Oliver > > > > Oh, by the way, where is x11-drivers/xf86-video-noveau? I can only find > > x11-drivers/xf86-video-nv, which covers old hardware and it is not > > applicable to the > > GT 740M (complains, rightfully, that the found device isn't supported by > > the "nv" > > driver). > > > > I face a mess here ... :-( > > It was removed, because we missing kernel support for the nouveau > driver. > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org" Without nouveau driver, FreeBSD people do not have the slightes chance to play with OpenCL/libclc on nVidia's hardware. I'm eager to watch the day when even the Radeon driver gets ripped off due to lack of kernel support :-)
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