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Date:      Sat, 20 Sep 2014 16:25:48 +0200
From:      "O. Hartmann" <ohartman@zedat.fu-berlin.de>
To:        Warren Block <wblock@wonkity.com>
Cc:        freebsd-x11@freebsd.org, FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: x11/nvidia-driver (340.24/340.32/343.13): nvidia BLOB doesn't recognize any display socket on Lenovo E540/UEFI and FBSD CURRENT
Message-ID:  <20140920162548.0d793cb8.ohartman@zedat.fu-berlin.de>
In-Reply-To: <20140920161012.02844320.ohartman@zedat.fu-berlin.de>
References:  <20140919201210.72650231.ohartman@zedat.fu-berlin.de> <alpine.BSF.2.11.1409200727510.96859@wonkity.com> <20140920161012.02844320.ohartman@zedat.fu-berlin.de>

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Am Sat, 20 Sep 2014 16:10:12 +0200
"O. Hartmann" <ohartman@zedat.fu-berlin.de> schrieb:

> Am Sat, 20 Sep 2014 07:36:21 -0600 (MDT)
> Warren Block <wblock@wonkity.com> schrieb:
>=20
> > On Fri, 19 Sep 2014, O. Hartmann wrote:
> >=20
> > > nVidia's BLOB from port x11/nvidia-driver seems to have problems in F=
reeBSD
> > > 11.0-CURRENT #2 r271869: Fri Sep 19 13:28:03 CEST 2014 amd64, on Leno=
vo ThinkPad
> > > Edge E540 laptop with CPU i5-4200M (Haswell) with integrated HD4600 I=
ntel iGPU and
> > > dedicated nVidia GT 740M (Optimus) working correctly.
> >=20
> > Optimus is supposed to be full Intel graphics plus an Nvidia GPU.  The=
=20
> > extra GPU uses the same display memory and can be enabled to speed up=20
> > the Intel graphics or disabled for power saving.  I don't know if=20
> > versions where the Nvidia section is a full discrete video adapter that=
=20
> > can be used alone are still called "Optimus".
> >=20
> > Some Optimus owners have reported being able to use the Intel drivers=20
> > after disabling the Nvidia GPU in the BIOS or UEFI.  If an option to=20
> > disable the Nvidia GPU is not present, some people have reported succes=
s=20
> > with an xorg.conf that uses only the intel driver and ignores the Nvidi=
a=20
> > hardware.
>=20
> Thanks Warren.
>=20
> 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 discret=
e adaptor with
> Optimus technology and everything sounds to me like it can be selected ex=
clusively.
> What you describes is that I definitely need to use the HD4600 iGPU on Fr=
eeBSD in the
> first place since the nVidia hardware is a kind of "appendix" to the HD46=
00.
>=20
> 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 mi=
ssing device -
> preceeded by a lot of /dev/dri errors. This indicates to me, in a naiv ma=
nner, that this
> HD4600 isn't recodnized by the kernel, either. I do not see any kind of v=
ga0: entry in
> the kernel log when enabling "Integrated Graphics" only in the laptop's U=
EFI/Firmware.
> When enabling "nVidia Optimus", a recognized vga0: device shows up.
>=20
> From my server, equipted with a IvyBridge i3-class CPU with integrated iG=
PU, I even get
> this message from 11.0-CURRENT:
>=20
> vgapci0@pci0:0:2:0:     class=3D0x030000 card=3D0x01521849 chip=3D0x01528=
086 rev=3D0x09 hdr=3D0x00
>     vendor     =3D 'Intel Corporation'
>     device     =3D 'Xeon E3-1200 v2/3rd Gen Core processor Graphics Contr=
oller'
>     class      =3D display
>     subclass   =3D VGA
>     bar   [10] =3D type Memory, range 64, base 0xf7800000, size 4194304, =
enabled
>     bar   [18] =3D type Prefetchable Memory, range 64, base 0xe0000000, s=
ize 268435456,
> enabled bar   [20] =3D type I/O Port, range 32, base 0xf000, size 64, ena=
bled
>     cap 05[90] =3D MSI supports 1 message=20
>     cap 01[d0] =3D powerspec 2  supports D0 D3  current D0
>     cap 13[a4] =3D PCI Advanced Features: FLR TP
>=20
>=20
> 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 t=
o 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 vg=
a0: device in
the pciconf-listing (it is very early and I stoped looking at the very end =
...).

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