Home Page Forums MAME Non-Windows MAME Support Ubuntu 21.04. can't use BGFX anymore as of 0.235

Hello. Since building 0.235, I find that I'm no longer able to run MAME in BGFX mode. SDL and OpenGl work fine. When I try to run with BGFX, I get:


Enter sdl_info::create
MESA-INTEL: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0

X Error of failed request: BadDrawable (invalid Pixmap or Window parameter)
Major opcode of failed request: 149 ()
Minor opcode of failed request: 4
Resource id in failed request: 0x200000e
Serial number of failed request: 423
Current serial number in output stream: 428


I should note that even if I run the sysctl command, only the warning goes away, the error remains. I have made sure that I have the latest BGFX files in the right place. I have been able to use BGFX successfully on this laptop for several versions, this is a brand new experience for me. Any ideas on what I can try? For background, I'm on Ubuntu 21.04, using nvidia-driver-470. Thank you.

The message says it's trying to use your Intel integrated GPU instead of your Nvidia discrete one. I'm not sure how to fix that.

Interesting. I double checked a few things on my system, video acceleration appears enabled in my browsers, I also ran:


~$ glxinfo
name of display: :1
display: :1 screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4


and "direct rendering" is a "Yes"... I'm going to rebuild to 0.234 and see if the problem persist. Thank you RB.

Can now confirm: rebuilding back to 0.234 allowed me to use BGFX mode. Will now build back to 0.235 and test.

OK, I've rebuilt MAME back to 0.235, updated the bgfx folder, and I am back to the same problem. So, 0.234 BGFX = working for me, and 0.235 BGFX = not working for me. Everything else is the same. RB, any way I can drill down deeper into this, possibly get you some debug information? Thanks.

Did you tried it from the latest mame source? BGFX got some fixes.

git clone https://github.com/mamedev/mame.git

https://github.com/mamedev/mame/

Try it to see. For the 0.236 beta.

Some of the games screen didn't work right with the 0.235 released because of the BGFX changes. I thought maybe it did something to the Linux version to where it crash.

Hi Dullaron, any branch in particular? I just tried doing a checkout master, pulling latest, and building that, but sadly no, it does not improve the situation.

The master branch, as of cbc2489, has all of the current post-0.235 BGFX fixes.

OK, so this just got a lot more interesting: I was able to reproduce the issue on a second separate laptop. I realized I had a laptop I was using to test out the Pop! OS distro on, and I know I had MAME running just fine with BGFX on that as well. Updated that to 0.235, rebuilt, and boom: BadDrawable. The systems are similar, but not identical:

OS_____Ubuntu_______Pop! OS
CPU____i7-10750H_____i7-6700H
GPU____GTX-1660 Ti___GTX-970M


And as before, the Pop! OS laptop can run just fine in OpenGL and SDL. Only having a problem with BGFX.

RB, I synced to commit ea3185a when I built master on the Ubuntu laptop, and still have the issue. I have just synced to fc79b73 on the Pop! OS laptop and am rebuilding now, but I suspect the results will be the same. Please advise. Thank you!

Try this one over here at https://sdlmame.wallyweek.org/ There 3 installers there.