[SOLVED] fedora 28

schneidz · 08-19-2018, 06:47 PM

hi, i am trying to run a game on one of those hybrid intel/nvidia pc's using this guide:
https://rpmfusion.org/Howto/Optimus

i am unable to toggle off the intel gpu in the uefi/bios but no matter what i do the system keeps trying to use the intel gpu instead of the nvidia one.

anyone have experience with these:

Code:

[schneidz@xbmc ~]$ uname -a -m -p
Linux xbmc 4.17.14-202.fc28.x86_64 #1 SMP Wed Aug 15 12:29:25 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
[schneidz@xbmc ~]$ dmesg | grep "command line"
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.17.14-202.fc28.x86_64 root=UUID=7957bfa9-dee8-4ffe-bb71-a27c7b274f28 ro rhgb quiet nouveau.modeset=0 rd.driver.blacklist=nouveau video=vesa:off LANG=en_US.UTF-8 modprobe.blacklist=nouveau nvidia-drm.modeset=1
[schneidz@xbmc ~]$ lspci -vnn | grep '\''[030[02]\]'
00:02.0 VGA compatible controller [0300]: Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07) (prog-if 00 [VGA controller])
02:00.0 3D controller [0302]: NVIDIA Corporation GM108M [GeForce 930M] [10de:1346] (rev a2)
[schneidz@xbmc ~]$ lsmod | grep nvidia
nvidia              14061568  15
ipmi_msghandler        57344  2 ipmi_devintf,nvidia
[schneidz@xbmc ~]$ which randr
/usr/bin/which: no randr in (/usr/share/Modules/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/home/schneidz/.local/bin:/home/schneidz/bin)
[schneidz@xbmc ~]$ xrandr --output <output> --set "PRIME Synchronization" 1
bash: output: No such file or directory
[schneidz@xbmc ~]$ nvidia-settings 

ERROR: Unable to find display on any available system

[schneidz@xbmc ~]$ nvidia-settings -v

nvidia-settings:  version 396.45  (mockbuild@buildvm-01.online.rpmfusion.net) 
Fri Jul 20 12:11:21 CEST 2018
  The NVIDIA X Server Settings tool.

  This program is used to configure the NVIDIA Linux graphics driver.
  For more detail, please see the nvidia-settings(1) man page.
[schneidz@xbmc ~]$ glxinfo | grep "renderer string"
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2)

ferrari · 08-19-2018, 07:06 PM

I don't have Optimus hardware, but AFAIU the nvidia driver is invoked with the 'optirun' command. The general syntax is: optirun [options] application [application-parameters]. For example

Code:

optirun glxgears -info

and $USER needs to be a member of the 'bumblebee' group...

Code:

gpasswd -a $USER bumblebee

More info...
https://docs.fedoraproject.org/en-US...bee/index.html

schneidz · 08-19-2018, 09:19 PM

thanx, supposedly bumblebee is old hat but i gave it a swing anyways:

Code:

[schneidz@xbmc ~]$ groups
schneidz wheel bumblebee
[schneidz@xbmc ~]$ optirun glxgears -info
[ 1071.762181] [ERROR]Cannot access secondary GPU, secondary X is not active.

[ 1071.762259] [ERROR]Aborting because fallback start is disabled.
[schneidz@xbmc ~]$ primusrun glxgears
primus: fatal: Bumblebee daemon reported: econdary X is not active.

ferrari · 08-19-2018, 11:26 PM

I'm out of my depth on this, but reading through the guide I linked to...perhaps check the status of the following

Code:

systemctl status bumblebeed

*should be enabled

Code:

systemctl status nvidia-fallback

*should be disabled

Note the guide I linked to also discusses some diagnostic info regarding some errors. Did you read that guide completely? This might be relevant perhaps...

Quote:

[ERROR]Cannot access secondary GPU: No devices detected

In some instances, running optirun will return:

[ERROR]Cannot access secondary GPU - error: [XORG] (EE) No devices detected.
[ERROR]Aborting because fallback start is disabled.

In this case, you will need to move the file /etc/X11/xorg.conf.d/20-intel.conf to somewhere else, restart the bumblebeed daemon and it should work. If you do need to change some features for the Intel module, a workaround is to merge /etc/X11/xorg.conf.d/20-intel.conf to /etc/X11/xorg.conf.

It might be also necessary to comment the driver line in /etc/X11/xorg.conf.d/10-monitor.conf.

You might also need to define the NVIDIA card somewhere (e.g. file /etc/bumblebee/xorg.conf.nvidia), using the correct BusID according to lspci output:

Section "Device"
Identifier "nvidiagpu1"
Driver "nvidia"
BusID "PCI:0:1:0"
EndSection

Note that the format of lspci output is in hexadecimal format, while in xorg it is in decimal. So if the output of lspci is, for example, 0a:00.0 the BusID should be PCI:10:0:0.

schneidz · 08-20-2018, 11:19 AM

thanks again, even after disabling nvidia fallback, it magically comes back o for the next reboot:

Code:

[schneidz@xbmc ~]$ sudo systemctl disable nvidia-fallback
[schneidz@xbmc ~]$ sudo shutdown -r now

...

[schneidz@xbmc ~]$ systemctl status nvidia-fallback
● nvidia-fallback.service - Fallback to nouveau as nvidia did not load
   Loaded: loaded (/usr/lib/systemd/system/nvidia-fallback.service; disabled; vendor preset: disabled)
   Active: active (exited) since Mon 2018-08-20 12:03:18 EDT; 3min 22s ago
  Process: 948 ExecStartPost=/bin/plymouth message --text=NVIDIA kernel module missing. Falling back to >
  Process: 924 ExecStart=/sbin/modprobe nouveau (code=exited, status=0/SUCCESS)
 Main PID: 924 (code=exited, status=0/SUCCESS)

Aug 20 12:03:12 xbmc systemd[1]: Starting Fallback to nouveau as nvidia did not load...
Aug 20 12:03:18 xbmc systemd[1]: Started Fallback to nouveau as nvidia did not load.
lines 1-9/9 (END)
[schneidz@xbmc ~]$ systemctl status bumblebeed
● bumblebeed.service - Bumblebee C Daemon
   Loaded: loaded (/usr/lib/systemd/system/bumblebeed.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2018-08-20 12:02:31 EDT; 7min ago
 Main PID: 692 (bumblebeed)
    Tasks: 1 (limit: 4915)
   Memory: 1.6M
   CGroup: /system.slice/bumblebeed.service
           └─692 /usr/sbin/bumblebeed

Aug 20 12:02:31 xbmc systemd[1]: Started Bumblebee C Daemon.
Aug 20 12:03:07 xbmc bumblebeed[692]: [   62.464114] [INFO]/usr/sbin/bumblebeed 3.2.1 started

so i got a solution so i'll mark this as solved eventhough my nvidia graphics adapter has slower fps in the game i am playing than my intel adapter:

Code:

[schneidz@xbmc ~]$ lsmod | egrep "nv|nou|915"
tun                    49152  1
nouveau              2023424  0
ttm                   126976  1 nouveau
i915                 2052096  24
i2c_algo_bit           16384  2 i915,nouveau
mxm_wmi                16384  1 nouveau
drm_kms_helper        196608  2 i915,nouveau
drm                   458752  25 drm_kms_helper,i915,ttm,nouveau
video                  45056  3 asus_wmi,i915,nouveau
wmi                    32768  4 asus_wmi,wmi_bmof,mxm_wmi,nouveau
[schneidz@xbmc ~]$ glxspheres64 
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0x1d1
Context is Direct
OpenGL Renderer: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) 
60.462362 frames/sec - 67.475995 Mpixels/sec
60.035922 frames/sec - 67.000089 Mpixels/sec
59.983189 frames/sec - 66.941239 Mpixels/sec
^C
[schneidz@xbmc ~]$ sudo rmmod nouveau 
[schneidz@xbmc ~]$ sudo insmod /lib/modules/4.17.14-202.fc28.x86_64/extra/nvidia/nvidia.ko
[schneidz@xbmc ~]$ sudo insmod /lib/modules/4.17.14-202.fc28.x86_64/extra/nvidia/nvidia-modeset.ko
[schneidz@xbmc ~]$ sudo insmod /lib/modules/4.17.14-202.fc28.x86_64/extra/nvidia/nvidia-drm.ko
[schneidz@xbmc ~]$ sudo insmod /lib/modules/4.17.14-202.fc28.x86_64/extra/nvidia/nvidia-uvm.ko

logout and log back in:

Code:

[schneidz@xbmc ~]$ lsmod | egrep "nv|nou|915"
nvidia_uvm            925696  0
nvidia_drm             45056  4
nvidia_modeset       1093632  3 nvidia_drm
nvidia              14061568  207 nvidia_uvm,nvidia_modeset
tun                    49152  1
ipmi_msghandler        57344  2 ipmi_devintf,nvidia
i915                 2052096  13
i2c_algo_bit           16384  1 i915
drm_kms_helper        196608  2 nvidia_drm,i915
drm                   458752  19 drm_kms_helper,nvidia_drm,i915,ttm
video                  45056  2 asus_wmi,i915
[schneidz@xbmc ~]$ glxspheres64 
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0x6c
Context is Direct
OpenGL Renderer: GeForce 930M/PCIe/SSE2
655.116158 frames/sec - 731.109633 Mpixels/sec
665.840378 frames/sec - 743.077862 Mpixels/sec
692.870984 frames/sec - 773.244018 Mpixels/sec
^C

but the game i am running has low fps and tearing.

also it seems buggy that i can only log into gnome when i log in (lxde, cinnamon, openbox, kodi, ...).
and just now the screen flashes ad brings me back to gdm when i try to log into gnome. i have to now use 'gnome on xorg'.

ferrari · 08-20-2018, 02:43 PM

Were you using Gnome (Wayland) before? If so, I don't think such a solution would work anyway. The nvidia driver isn't Wayland ready yet, let alone Optimus support.

ferrari · 08-20-2018, 08:08 PM

Further reading about Fedora 28 and Gnome 3.28 leads me to understand that Mutter (Wayland compositor for Gnome) now has EGL streams support for those wanting to use the proprietary NVIDIA driver. I'm not sure if it is possible to switch video cards with PRIME though

https://fedoramagazine.org/whats-new...8-workstation/
https://negativo17.org/nvidia-driver...for-fedora-25/
https://wiki.archlinux.org/index.php/PRIME