mame - Could not initialize SDL x11 not available

shadoom

RaspberryPi 4
retropie-buster-4.8-rpi4_400.img.gz

On a fresh installation of RetroPie I Installed Mame 0.244 from RetroPie-Setup -> Manage -> exp -> mame (via binary)
I added the following to the /boot/config.txt to set the console to 720p

hdmi_group=1
hdmi_mode=4

Running a MAME game through Emulationstation gives me the following error

/dev/shm/runcommand.log
Parameters:
Executing: /opt/retropie/emulators/mame/mame "sonicwi2"
Could not initialize SDL x11 not available

The game doesn't start and just returns back to emulationstation.
lr-mame and even x11 forwarding through mobaxterm with mame is working fine.

mitu

Probably because of https://github.com/mamedev/mame/issues/9852. Seems to be fixed in https://github.com/mamedev/mame/pull/9888, but that will probably part of this month's release.

shadoom

@mitu
thanks a lot for that hint! I've checked the issues, but didn't notice this one.
For anyone interested/impatient, appending the following works for now:

videodriver kmsdrm

to

/opt/retropie/configs/mame/mame.ini

Just remember to remove it when it has been implemented, as mentioned in the pull request above.