Date: Thu, 28 Nov 2019 22:41:15 +0100 From: Polytropon <freebsd@edvax.de> To: "Kurt Buff - GSEC, GCIH" <kurt.buff@gmail.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: FreeBSD-12.1 on laptop Message-ID: <20191128224115.4bfde0f7.freebsd@edvax.de> In-Reply-To: <CADy1Ce79MSVR1FWSSdz09P4ypXY8ocx1Ln8q-2ZCShiHN0kDeQ@mail.gmail.com> References: <CAKy-8=hUCNiAufHHgpLJTnbS_==aHT7UyspgjLyro-yEcxJ2_w@mail.gmail.com> <CACNAnaECR4bQ=FAM%2BwTfU0HaR63uAUQkp41mS9pPSM=4K_EGqQ@mail.gmail.com> <CAKy-8=gh7nGqzf9G5A7zJDoa2EQgA432k49djHi3%2Bzhg36Tv_A@mail.gmail.com> <CAKy-8=ivtDo0it9fzyUp8mUDAQuGWVfdQqfz2hmhXcA6CXJn%2Bg@mail.gmail.com> <CAKy-8=gHp67aqpXXNM=rfsWwNc4Ay__bsC-09NZ03Afm9W4ekg@mail.gmail.com> <CAKy-8=ho=mD5WLJA5iHbDt9prnrMDhjrwmWOO5NXumQDB9hXhw@mail.gmail.com> <20191128103810.9599da0b.freebsd@edvax.de> <CAKy-8=h05oQfa6rBhOH74vPt3e6m6u3-UXx6v3DWLgXp8No6Hw@mail.gmail.com> <770ebb05-9d76-1b54-5bf5-af548368e19e@hedeland.org> <CAKy-8=gccmRfqtg07JYmo15P0VV5bJo=tipOLURwEH0iA401tw@mail.gmail.com> <CAC=ypSUSmDyfECh4nD9gZ5=bWUCrPGvLs62EsRw0gfckrhJ5Gw@mail.gmail.com> <CAKy-8=jD3pWT6-YS1L-r-ms=Kr6QENzLQyncg09jJh3zRrw3xA@mail.gmail.com> <20191128140254.fc3ee735.freebsd@edvax.de> <17109e52-a8d5-be58-d29f-aacd30f7de01@panix.com> <CADy1Ce79MSVR1FWSSdz09P4ypXY8ocx1Ln8q-2ZCShiHN0kDeQ@mail.gmail.com>
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On Thu, 28 Nov 2019 11:51:39 -0700, Kurt Buff - GSEC, GCIH wrote:
> Laptops with two graphics processors typically use the most powerful
> one only to drive external monitors, and possibly only through a
> docking station, though I'm not as clear on that point.
Depends. I have a HP one that seems to contain a "logic" that
switches from one GPU to the other depending on a HDMI connection
being present, but displays the same image both on the LCD and
the externel HDMI display.
However, it would be helpful to verify the _exact_ hardware.
With "pciconf -lv | less" and looking for a "display" entry,
one or two should be found.
An entry for nVidia might look like this (desktop card):
vgapci0@pci0:2:0:0: class=0x030000
card=0x06201462 chip=0x039210de rev=0xa1 hdr=0x00
vendor = 'NVIDIA Corporation'
device = 'NVIDIA GeForce 7600 GS (G73)'
class = display
subclass = VGA
Or for Intel, in a Lenovo Thinkpad R61i:
vgapci0@pci0:0:2:0: class=0x030000
card=0x20b517aa chip=0x2a028086 rev=0x0c hdr=0x00
vendor = 'Intel Corporation'
device = 'Mobile GM965/GL960 Integrated Graphics Controller
(primary)'
class = display
subclass = VGA
vgapci1@pci0:0:2:1: class=0x038000
card=0x20b517aa chip=0x2a038086 rev=0x0c hdr=0x00
vendor = 'Intel Corporation'
device = 'Mobile GM965/GL960 Integrated Graphics Controller
(secondary)'
class = display
As you can see - two instances of Intel graphics - I don't know
if this is due to the fact that the R61i is in a docking station
where the CRT monitor is connected - yes, it _is_ an actual CRT. :-)
--
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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