Le 06/06/2017 à 11:55, LoneVVolf a écrit : > On 06-06-17 08:55, KangJing Huang via arch-general wrote: >> Hi there, >> >> I'm trying to setup my xorg configuration on my dual graphic card >> desktop >> system. The system has two cards, one iGPU Intel HD Graphics 530, >> another >> is a dGPU Nvidia GTX 1070 on PCIe. I plugged one monitor to the iGPU >> port >> and another to the dGPU port and let the motherboard boot from iGPU. >> >> Right now, the fbcon works well on the iGPU, and I installed Nvidia >> non-free driver, and would like to run X on dGPU. I used the >> nvidia-xconfig >> to generate a Xorg configuration, and after starting Xorg, I got display >> from the monitor connected to dGPU, but it seems that the 3D >> rendering on >> that screen is software-based, and `glxinfo | grep vendor` showed that >> libglvnd on that X environment is selecting mesa as the GL library to >> use. >> With mesa being called on a dGPU connected screen, apparently it >> could not >> find a correct device to do dri, and fell back to software rendering. >> >> Does anyone know the proper way of config X so that libglvnd could know >> which GL library to use correctly in this case? >> >> Thanks, >> K.H. >> > Hi, > > first step is to stop using nvidia-xconfig . > For most people X doesn't even start with nvidia-xconfig created config. > > Your system uses Hybrid Graphics intel + nvidia , when using nvidia > proprietary driver you basically have two options > Bumblebee or Optimus . > > Check the wikipages for both to get an idea what's possible. Not exactly true here: this is a desktop, not a laptop. So things might be a bit different (no PM at least). I honestly never investigated this case in the libglvnd era, but there might be tricky things going on. Could you open a forum thread and post some logs (/var/log/Xorg.*.log would be a good start) there, and link it here? I think this would be easier than having this conversation per email. Regards, Bruno
Attachment:
signature.asc
Description: OpenPGP digital signature
