DRI does not work with screen1/fb1

[mittorn]

Mali EGL does not work when using /dev/fb1 because fbturbo is trying to use /dev/dri/card0 instead of /dev/dri/card1. After replacing /dev/dri/card0 by /dev/dri/card1 and restarting X-server dri works. Are there any way to specify correct dri device?

[reinforce]

According commit 9808a58, libdrm automatically
provides the correct device node path.

[mittorn]

It does not work because drmOpen opens wrong device.

[mittorn]

Patch that adds DRIDevicePath option to specify correct dri device. http://pastebin.com/Bu2cGGqZ

[ssvb]

@mittorn Thanks for investigating the problem and providing a fix!

Just to make it complete and ready to be applied, please also add a description for this new option to the man page and a commit message to the patch itself with a signed-off-by notice. And if by chance any other drivers happen to have the same option, it would be a good idea to use the same name for it in order to keep things consistent.