On Sat, 20 Sep 2014, O. Hartmann wrote: > Am Sat, 20 Sep 2014 07:36:21 -0600 (MDT) > Warren Block <wblock_at_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. > 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.Received on Sat Sep 20 2014 - 12:27:29 UTC
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