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Integrated and Discrete graphics on the P1G2

2020-11-06, 11:49 AM

I recently fully reinstalled my linux system. I installed Fedora 33 and downloaded the Nvidia driver using this page. To see which graphics cards are being used I did this:

➜  ~ lspci -vnnnn | grep VGA

00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA controller])

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU117GLM [Quadro T1000 Mobile] [10de:1fb9] (rev a1) (prog-if 00 [VGA controller])


I think the [VGA controller] at the end means that the graphics card is being used so they are both used. However, I get less performance then previously on F32 when I set in the BIOS 'discrete graphics mode'. Will the driver I have not automatically switch between integrated and discrete graphics? When I click right mouse button on an application it shows 'launch using discrete graphics card' but this did not improve any performance. My driver version is 455.38:

➜  ~ dnf list installed | grep nvidia

akmod-nvidia.x86_64                                3:455.38-1.fc33                        @rpmfusion-nonfree-nvidia-driver

kmod-nvidia-5.8.17-300.fc33.x86_64.x86_64          3:455.38-1.fc33                        @@commandline                  

nvidia-settings.x86_64                             3:455.38-1.fc33                        @rpmfusion-nonfree-nvidia-driver

xorg-x11-drv-nvidia.x86_64                         3:455.38-1.fc33                        @rpmfusion-nonfree-nvidia-driver

xorg-x11-drv-nvidia-kmodsrc.x86_64                 3:455.38-1.fc33                        @rpmfusion-nonfree-nvidia-driver

xorg-x11-drv-nvidia-libs.i686                      3:455.38-1.fc33                        @rpmfusion-nonfree-nvidia-driver

xorg-x11-drv-nvidia-libs.x86_64                    3:455.38-1.fc33                        @rpmfusion-nonfree-nvidia-driver

I also have a different NVIDIA X Server Settings application now, it has less options. It used to show things about my screen and other things. It now looks like this:

Is something wrong with my driver? When I launch nvidia-settings from the terminal it still gives exactly this windows but also this error message:

(nvidia-settings:35337): GLib-GObject-CRITICAL **: 12:47:43.531: g_object_unref: assertion 'G_IS_OBJECT (object)' failed


Does Lenovo not support both graphics cards for Fedora?



1377 Posts


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  • Message 2 of 2

Re:Integrated and Discrete graphics on the P1G2

2020-11-22, 18:49 PM



Has upgrading your fedora 33 installation resolved this problem?


Which graphical desktop environment are you using?   The latest Gnome versions by default do NOT use X libraries.  It looks like the nvidia drivers you installed use the X libraries.  I use KDE Plasma desktop environment which has not converted away from X yet, but they are proudly working on converting away from X :(    It is possible to start Gnome in Xorg mode, Have you tried that?




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