Couldn't find a suitable DRM device

Libretro Lakka
#1

Hey guys! So far Lakka works like a charm on my IBM Thinkpad Z60T - just awesome! I am just blown away - the Lakka menu, PS3 wireless bluetooth support, WOW, UNBELIEVABLE!

But Lakka seems to not like my Asus Aspire One D270 Netbook. Booting stops after the little splash logo appears and before the lakka menu is supposed to appear.

I used retroarch=0 and tty to start retroarch manually to get some text messages and it always says: retroarch error: gfx ctx drm egl init: kms egl: couldnt find a suitable drm device, segmentation fault I edited retroarch.cfg and changed lakka menu to rgui menu, no luck, always stuck, no menu.

Is it a hardware recognize problem? The onboard video chip is Intel GMA 3600. Are there options or config files I can change?

Stuck on boot after install and liveboot from usb
#2

Looks like the driver we use for intel cards doesn’t like your Intel GMA 3600… https://wiki.archlinux.org/index.php/Intel_GMA3600

#3

Thank you for your quick answer, I really appreciate it. Apparently Intel never supported Linux drivers for this chip and I guess they will never do - hence the bad performance and no acceleration. Well all Linux distros I ran so far managed to produce video output but never hardware accelerated. I guess all the work is dumped to the CPU but features are therefore limited. It’s a fallback but at least it works for basic stuff. Any chance there is some kind of fallback nonaccelerated basic video driver option present in Lakka’s graphic chip handling? since the CPU is powerful enough to do all the work for SNES and stuff. Thanks again!!!

#4

Mmmmh, if there is no DRM device found, then it is possible that the driver needed for this card is not present in our build.

We use drm/kms, which is something of the kernel, compatible only with the open source drivers.

Let me enable CONFIG_DRM_GMA3600 in our kernel config, and see if it changes something. But I fear that we may need a userspace driver for that too.

Please try this build http://static.kivutar.me/Lakka-Generic.i386-devel-20150514221033-r21007-gf36df4e.img.gz

#5

Thanks a lot!!! I tried your build but sadly same error message. This time there are a lot more warnings and error messages before the one with DRM devide. Like gbm: failed to open any driver, failed to load swrast driver, couldnt create GBM device, failed to load module… I guess Intel not providing any drivers for this chip is the problem here right? Thanks again for everything!!!

#6

Mhhhh, I don’t know, we may need a userspace driver for this…

#7

Thanks again for still responding!!! I read a lot of posts in different forums and the essence seems to be: - Intel usually supports Linux well. They seem to have outsourced the manufacturing of graphic chipset this time (gma3600) and source code has been closed. - If I understood correctly userspace driver attempts have been made and called cedarview that I found here https://github.com/thomas001 Have I understood correctly and may these be helpful in enabling Lakka to recognize more hardware? Sorry if I mix up stuff or compare wrongly or ask wrong questions - just started to learn (and already love) Linux!!! :slight_smile:

#8

Yes, looks like you found an userspace driver. However, the last commits are from two years ago. I doubt it’s still compatible with the latest kernel. We may have to check what Ubuntu does.

#9

I have an Asus R11CX Netbook with Intel GMA 3600. Same problem…

#10

Maybe I have the same problem. https://forums.libretro.com/t/stuck-on-boot-after-install-and-liveboot-from-usb/14777

#11

Intel GMA 3600 is based on PowerVR which is not supported on Linux.