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asdkl
n00b
Joined: 17 Nov 2013
Posts: 5
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 Posted: Sun Nov 17, 2013 3:36 pm Post subject: [solved] XDM with Nvidia Optimus |
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Hello everybody,
I am trying to get XDM and my Nvidia Optimus working.
I can start X after following the howto found at https://forums.gentoo.org/viewtopic-t-959568.html with startx. Basically, the magic seems to be the
| Code: | xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --auto |
commands in my .xinitrc.
As XDM does not execute them, it dies with a "no screens found" error. Any advices where to put these commands?
Setup:
| Code: | x11-base/xorg-server 1.14.3-r2
x11-drivers/nvidia-drivers 325.15
x11-apps/xdm 1.1.11-r3 |
Kernel
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asdkl
n00b
Joined: 17 Nov 2013
Posts: 5
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| Posted: Sun Nov 17, 2013 5:45 pm Post subject: |
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| I totally missunderstood how bumblebee and the xrandr options work together. So, you should simply ignore the post at all. |
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nocomprom1se
n00b
Joined: 17 Dec 2013
Posts: 6
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| Posted: Tue Jan 21, 2014 3:42 am Post subject: |
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Sorry for exhumation here.
I also got the same problem - I'm only able to start Xorg via startx with the users xinitrc
xinitrc
| Code: | xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --setprovideroutputsource 0x45 0x2b0
xrandr --output LVDS-0 --on
xrandr --auto
startkde
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xorg.conf
| Code: | Section "ServerLayout"
Identifier "layout"
Screen 0 "nvidia"
Inactive "intel"
EndSection
Section "Device"
Identifier "nvidia"
Driver "nvidia"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "nvidia"
Device "nvidia"
Option "AllowEmptyInitialConfiguration"
#Option "UseDisplayDevice" "none"
EndSection
Section "Device"
Identifier "intel"
Driver "modesetting"
BusID "PCI:0:2:0"
EndSection
Section "Screen"
Identifier "intel"
Device "intel"
EndSection
Section "InputClass"
Identifier "keyboard-all"
Driver "evdev"
Option "Xkblayout" "de"
MatchIsKeyboard "on"
EndSection |
using proprietary driver 331.38 with an GT750M on 3.12.6 sources. No bumblebee installed.
logging in in the shell and then starting x isn't just uncomfortable but also breaks some privilege stuff in KDE. |
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asdkl
n00b
Joined: 17 Nov 2013
Posts: 5
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| Posted: Sun Jan 26, 2014 5:37 pm Post subject: |
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I have no special graphical needs under Linux and was just looking for a quick working solution and I am not 100% sure what I tried but I think two solutions worked for me:
1. Solution:
Configure only one card in your /etc/X11/xorg.conf - Intel save some energy, Nvidia has a better 3D performance
2. Solution (what I did):
Use bumblee.
I ended up with bumblebee, nvidia driver, and "VIDEO_CARDS="intel nvidia modesetting"" in my make.conf as this solution allows me to use the Nvidia on demand. |
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