Arch Linux

verona007

Member

Registered: 2015-02-16

Posts: 3

Xorg 1.17.1 Optimus Modesetting not working

Hy!

I have a Lenovo Z50-70 laptop vith Optimus graphics.

Two days ago, I can successfully get to work my machine with this tutorial: NVIDIA Optimus - ArchWiki
Today, I updated my system, and the xorg-server was updated to 1.17.1 from 1.16
I asked to remove the xf86-video-modesetting package, and I push yes.
The update completed, I rebooted the laptop, and now, the X not starting.
I read that xorg-server 1.17 now has included the modesetting driver, but I can't get to work my system.
What should I do to work again with only the nVidia GPU?

nomorewindows

Member

Registered: 2010-04-03

Posts: 3,538

Re: Xorg 1.17.1 Optimus Modesetting not working

I think it goes with this thread: https://bbs.archlinux.org/viewtopic.php?id=193685

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I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

bhante

Member

Registered: 2008-05-20

Posts: 22

Re: Xorg 1.17.1 Optimus Modesetting not working

Use    "AccelMethod"  "sna" instead of glamor

My /etc/X11/xorg.conf : look for the line  AccelMethod

Section "ServerLayout"
    Identifier "layout"
    Screen 0 "nvidia"
    Inactive "intel"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "PCI:3:0:0"
EndSection

Section "Screen"
    Identifier "nvidia"
    Device "nvidia"
    Option "AllowEmptyInitialConfiguration" "True"
EndSection

Section "Device"
    Identifier "intel"
    Driver "modesetting"
    BusID "PCI:0:2:0"
   Option      "AccelMethod"  "sna"
EndSection

Section "Screen"
    Identifier "intel"
    Device "intel"
EndSection

AnAkkk

Member

Registered: 2014-03-03

Posts: 148

Re: Xorg 1.17.1 Optimus Modesetting not working

modesetting doesn't have sna though, so I guess you could put anything else than "glamor" in AccelMethod, and it'll work, right?

verona007

Member

Registered: 2015-02-16

Posts: 3

Re: Xorg 1.17.1 Optimus Modesetting not working

Bhante:  It worked! Many thanks! You are awesome! Added to the Arch Wiki Nvidia Optimus article.

Last edited by verona007 (2015-02-16 12:03:02)

AnAkkk

Member

Registered: 2014-03-03

Posts: 148

Re: Xorg 1.17.1 Optimus Modesetting not working

Bhante:  It worked! Many thanks! You are awesome! Added to the Arch Wiki Nvidia Optimus article.

That doesn't work on my system with SDDM/Plasma 5, Plasma starts and then Xorg just crashes.

mrunion

Member

From: Jonesborough, TN

Registered: 2007-01-26

Posts: 1,938

Website

Re: Xorg 1.17.1 Optimus Modesetting not working

I think the bug report states that something else is still broke with Plasma. Check the other thread for a link to the bug report.

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Matt

"It is very difficult to educate the educated."

valek

Member

Registered: 2015-03-09

Posts: 1

Re: Xorg 1.17.1 Optimus Modesetting not working

It's working for me, thanks!
Also I've tried "AccelMethod"  "uxa", it's working too