Missing intel gpu

joe6302413 · Posted: Wed Mar 14, 2018 6:14 am Post subject: Missing intel gpu

Hi all,

My laptop is an acer 5742g with intel i5-460m and nvidia GT420m.
I was following https://wiki.gentoo.org/wiki/NVidia/nvidia-drivers, and now the nvidia gpu is working well.
However, I cannot see my intel gpu in the lspci and lshwout put.
Also, I cannot find any intel gpu hints in dmesg.
I, though knowing it doesn't make sense, still followed the kernel instruction and driver installation on https://wiki.gentoo.org/wiki/Intel.
So the seeting of CONFIG_DRM_FBDEV_EMULATION=y is very certain.
I can't believe this laptop doesn't have the intel gpu working under hardware level....
Is there anything I miss to bring my intel gpu up to alive?
I can't understand what did I do wrong for weeks...

fedeliallalinea · Posted: Wed Mar 14, 2018 7:12 am Post subject:

You can post your lspci -nn?
In bios there is a option to enable disable intel video?
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joe6302413 · Posted: Wed Mar 14, 2018 9:09 am Post subject:

NeddySeagoon · Posted: Wed Mar 14, 2018 9:27 am Post subject:

joe6302413,

If you have the Intel GPU and it looks like you don't, the Intel and nVidia GPUs would not be switchable.
Instead, they would be arranged as an Optimus graphical solution.
With the Optimus graphics system, the Intel GPU is the only one that can refresh the display from the pixel buffer.
Either GPUs can draw the image.
This means that the Intel GPU is always used.

Conversely, it also means that if you don't use the Intel GPU at all' you only get a blank screen.

Please pastebin your /var/log/Xorg.0.log
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fedeliallalinea · Posted: Wed Mar 14, 2018 9:30 am Post subject:

But your laptop have intel gpu?
I search but I see some models with only intel or only nvidia. What is correct model of your acer?
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joe6302413 · Posted: Wed Mar 14, 2018 10:23 am Post subject:

Thank you both first.
I thought intel i5 stands for there is an intel gpu. I guess I am totally wrong.

Here is the pastbin of my xorg log https://pastebin.com/PXBTpk7b

This laptop is aspire 5742g model: pew71
I am not very sure is this the correct model series.
Thank you again

NeddySeagoon · Posted: Wed Mar 14, 2018 2:48 pm Post subject:

joe6302413,

joe6302413 · Posted: Thu Mar 15, 2018 1:24 am Post subject:

[quote]joe6302413,

代碼:
[ 33.670] (II) NVIDIA(0): Validated MetaModes:
[ 33.670] (II) NVIDIA(0): "DFP-0:nvidia-auto-select,DFP-1:nvidia-auto-select"
[ 33.671] (II) NVIDIA(0): Virtual screen size determined to be 3286 x 1080
[ 33.676] (--) NVIDIA(0): DPI set to (99, 102); computed from "UseEdidDpi" X config

That says that the nVidia GPU is connected to the display.

Your log is also missing any setup for an Intel GPU

There are very few laptops with separate Intel and nVidia graphics systems.
It adds to the cost and reduces battery life.

As you clearly don't have an Optimus graphics system. I'm fairly confident you don't have an Intel GPU either.
[\quote]

Thank you for checking through my log. Finally I learned that first generation intel i-cpu doesn't necessary mean there is a gpu.