On 18.06.2015 00:12, Chen, Simon wrote: > > I am trying to integrate the xf86-video-ati 7.4.0 for an external AMD > Radeon E8860 onto an embedded system. I have enabled the kernel > configuration flag for ATI Radeon, and I have installed the > xf86-video-ati successfully without any dependency errors. However, the > embedded OS does not seem to use the graphics card upon start time. In > the Xorg.0.log file that I’ve attached, the OS was able to load out a > .so for the driver. However, it later complains about a missing > dev/dri/card0 device node. After doing some research into how this > device node gets made, it seems udev or atleast some kind of init-script > is responsible for executing a modprobe in the Linux filesystem to > search for driver .ko files. It extracts a device ID from this driver > .ko and tries to match it with the device ID’s from the external > hardware detected on the board. So far it seems the OS is capable of > detecting the graphics card, and this is evident when I do “$ lspci –k.” > After matching the device IDs, a device node is supposed to be created > and associated with the driver and hardware. The OS however is missing > the appropriate .ko’s and the MODALIAS device ID. > > > > My question is...is this process executed anywhere in the xf86-video-ati > installation package? I’ve read that drivers can be implemented either > as a kernel built-in or as kernel modules. In the case with the > xf86-video-ati driver however, I am a bit confused as to which category > it falls under. The necessity for a device node and a .ko file seems to > presume that the xf86-video-ati is supposed to be modularized, and yet > the installation package has no script that sets these up.
The xf86-video-ati radeon driver is a userspace driver for Xorg. It depends on the kernel radeon driver (and the corresponding /dev/dri/card* device node) having been set up correctly. Please provide the output of dmesg. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
