kloadload i915kms cause kernel core dump

[Arto Pekkanen]

This topic has been discussed already many times before, so I am just
going to link the relevant Handbook article:
https://www.freebsd.org/doc/handbook/x-config.html

Read through the section "Setting the Video Driver in a File"

To set the Intel® driver in a configuration file:

Example 5.1. Select Intel® Video Driver in a File
/usr/local/etc/X11/xorg.conf.d/driver-intel.conf

Section "Device"
	Identifier "Card0"
	Driver     "intel"
	# BusID    "PCI:1:0:0"
EndSection

If more than one video card is present, the BusID identifier can be
uncommented and set to select the desired card. A list of video card bus
IDs can be displayed with pciconf -lv | grep -B3 display.

... and in your case, you MUST set the BusID attribute or X won't be
able to figure out which device to configure.

On 09.04.2016 09:31, 承恩徐 wrote:
> Hi, everyone.
> 
> I'using a Hasee laptop Model:K580S-i7 D0. It has a optimus dual cards, one
> is Intel HD4000, the other nvidia GT650M. There is no option in BIOS to
> disable optimus.
> 
> I follow the link https://wiki.freebsd.org/Graphics.
> 
> I've the problem enabling intel card.
> When I just use "intel" driver in xorg.conf, X won't start, compaining no
> device detected. I can only use the "vesa" driver, this way, X starts well,
> But I cannot switch back to console. When I pressed Alt-Shift-F1, it just
> went black, no response to any key but pressing power putton for 5 seconds.
> 
> Everytime trying loading i915kms kernel module, the kernel core dumps.
> If i compiled the module into kernel or put it in /boot/loader.conf or
> /etc/rc.conf, It will core dump in next booting process.
> If I manully kldload the module, kernel will core dump right after i press
> Enter.
> 
> I don't know why and how to resolve this.
> Any help will be appreciated! Thanks.
> 
> 
> 
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