You’re right, I have not given you all the information
Forgive me, I do not speak English very well, if you do not understand something insult me well
Hardware: Lenovo ThinkCenter M58 (Type 7359) with Intel Core 2 Duo 2.5Ghz, 4Gbyte Ram, and Intel GMA 4500 (4th generation Intel integrated GMA)
+ Zotac Nvidia Geforce GT610 PCI (model: ZT-60604-10L)
Lakka Xorg: r21174 http://sources.lakka.tv/nightly/Generic.x86_64/Lakka-Generic.x86_64-devel-20150928011843-r21174-ga11c890.img.gz (works - but new version of sharder, downloaded via retroArch sharder update, glsl version, laggy especially CRT-geom)
Lakka DRM/KMS: r21175 http://static.kivutar.me/Lakka-Generic.x86_64-devel-20150929235257-r21175-gba5c201.img.gz (i can install normally but after reboot i can see loading logo, after that blackscreen. System works, i can login over ssh, and i can kill retroarch via systemctl stop retroarch)
The problem is: As I understand it, OpenELEC (Lakka is based on OpenELEC) have build in nvidia proprietary driver (this is very good!), and this driver not support DRM/KMS mode (this is very bad!), only open driver support DRM/KMS mode like intel, nouveau, ecc.
Solution: Lakka DRM/KMS on my system never works, because OpenELEC have build in nvidia proprietary driver. Only X version of Lakka works. If you’re lucky to have a video card Intel really powerful, lakka is good solution, but if it continues to be based on OpenELEC, xorg is the only solution. I do not know if you can install the nouveau driver, on OpenELEC, I have not found information.