Am Sat, 20 Sep 2014 16:10:12 +0200 "O. Hartmann" <ohart...@zedat.fu-berlin.de> schrieb:
> 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. > > 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. > > From my server, equipted with a IvyBridge i3-class CPU with integrated iGPU, > I even get > this message from 11.0-CURRENT: > > vgapci0@pci0:0:2:0: class=0x030000 card=0x01521849 chip=0x01528086 > rev=0x09 hdr=0x00 > vendor = 'Intel Corporation' > device = 'Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller' > class = display > subclass = VGA > bar  = type Memory, range 64, base 0xf7800000, size 4194304, enabled > bar  = type Prefetchable Memory, range 64, base 0xe0000000, size > 268435456, > enabled bar  = type I/O Port, range 32, base 0xf000, size 64, enabled > cap 05 = MSI supports 1 message > cap 01[d0] = powerspec 2 supports D0 D3 current D0 > cap 13[a4] = PCI Advanced Features: FLR TP > > > The very same CURRENT (most recent as I built world on all system today) > doesn't > recognize the Haswell's HD4600 iGPU (i5-4200M). So, it seems impossible to me > that > people can report having this GPU working if even the most recent FreeBSD > CURRENT > doesn't recognize it. Sorry, on the laptop in question the integrated HD4600 does show up as a vga0: device in the pciconf-listing (it is very early and I stoped looking at the very end ...).
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