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 ... :-(
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