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

From: O. Hartmann <ohartman_at_zedat.fu-berlin.de>
Date: Sun, 21 Sep 2014 01:11:43 +0200
Am Sat, 20 Sep 2014 21:21:46 +0200
Koop Mast <kwm_at_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" <ohartman_at_zedat.fu-berlin.de> schrieb:
> > 
> > > Am Sat, 20 Sep 2014 08:27:27 -0600 (MDT)
> > > Warren Block <wblock_at_wonkity.com> schrieb:
> > > 
> > > > 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.
> > > 
> > > 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.


So, every new GPU not supported by xf86-video-nv has to use nVidia's BLOB then?

Received on Sat Sep 20 2014 - 21:11:54 UTC

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