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Hardware - samsung laptop with optimus nvidia

snvv - 25.03.2013, 11:06
Post subject: samsung laptop with optimus nvidia
Hello
I was given in my work a samsung 300E5C – T03 laptop that comes with an optimus nvidia card.

I know that I can use optimus (both cards – intel & nvidia) since I dont like to use bumblebee, but I would like to select nvidia or intel depending on the work I do with the laptop. However, there is no option in bios to select VGA. Therefor, I need a software way to select VGA. Is that possible?


-------------------------------
Some relevant info and actions:

      Code:
lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1058 (rev a1)


I tried to install nvisia using the manual but it will not build. I didnt tried more since I prefer to use open software.

I blacklist the intel (i915) and the system stack in post (will not boot). I had to use a liveCD to remove blacklist. Latter I learned that optimus need integrated card to operate.

If I create a 20-nouveau.conf then I cann't get X

I created a 20-intel.conf and the system boots but...

      Code:
sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:        +51.0°C  (crit = +86.0°C)
temp2:        +29.8°C  (crit = +86.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +52.0°C  (high = +80.0°C, crit = +85.0°C)
Core 0:         +51.0°C  (high = +80.0°C, crit = +85.0°C)
Core 1:         +52.0°C  (high = +80.0°C, crit = +85.0°C)

nouveau-pci-0100
Adapter: PCI adapter
temp1:        +49.0°C  (high = +95.0°C, crit = +105.0°C)


Therefore nouveau is in effect (running)

The lsmod is http://paste.debian.net/244454/


The laptop has a led monitor but the backlight is terible compared with my Probbok 4320s.

I tried to find a fix for the backlight. In /sys/class/backlight/ I have three options: acpi_video0 acpi_video1 intel_backlight of which acpi_video1 seems to be valid. In intel_backlight the actual_brightness is 3503 and I can not change it.
towo - 25.03.2013, 13:02
Post subject: RE: samsung laptop with optimus nvidia
In optimus-setup, the dedicated card has no connector to any disply-out, the chip is rendering his output direct to the framebuffer of the igp.
So you can't use the nvidia-chip without bumblebee/prime.
snvv - 25.03.2013, 13:51
Post subject: Re: RE: samsung laptop with optimus nvidia
Thank you towo
I had read that and I agree that it is not possible to use nvidia or both without bumblebee. However, what I do not understand is the fact that sensors shows nouveau as being in use.
Further, the xbacklight obviously affects nvidia since intel (i915 is broken as I said in the previous message). It seems to me that nvidia is in use...

snvv

EDIT. The dmesg is in http://paste.debian.net/244500/
towo - 25.03.2013, 14:19
Post subject: RE: Re: RE: samsung laptop with optimus nvidia
What is in use, your Xorg.0.log will show you.
That the kernel module is loaded is normal, since udev is seeing the chip.

You could even blacklist nouveau, since the intel chip is the only connected device to a display-out.
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