[Nouveau] [Bug 64746] optimus don't use nouveau card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64746

--- Comment #6 from Emil Velikov <emil.l.velikov at gmail.com> ---
Hmm something unusual is happening here

* the var/messages does not indicate any writes to vgaswitcheroo/switch
* the Xorg.log still indicates that the intel card is setup and used as primary

So to get a better picture (including timeline) can you do the following

1. Toggle/switch to the nv card
$ cat /sys/kernel/debug/vgaswitcheroo/switch 
$ echo "0000:01:00.0" /sys/kernel/debug/vgaswitcheroo/switch

2. Confirm that the nv card is used (paste the output in your reply)
$ cat /sys/kernel/debug/vgaswitcheroo/switch 

3. Start X
$ init 5 #startx # systemd start {g,k,x}dm

and then attach the output of the following (plain text, please)

* dmesg
* Xorg.0.log
* LIBGL_DEBUG=verbose glxinfo
* LIBGL_DEBUG=verbose DRI_PRIME=1 glxinfo

Thanks

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