G1000 and Side Menu not displaying as expected on Steam Deck

[Johannizzz]

I posted as a reply in a separate thread to raise my issue and thought it better to create a standalone ticket for visibility. I've seen three other posts related to the same issue on Linux that I'm encountering. Based on my logs, it seems it's encountering an issue in the mt_cairo_render.c file (https://github.com/skiselkov/libacfutils/blob/master/src/mt_cairo_render.c). I'm not sure how to fix this and didn't see any solution in the posts by other members with the same issue.

The default G1000 is loaded with no CAS messages displaying. In addition, the third display on the co-pilot side is not functioning. Lastly, the plugin menu on the side at the screen is not working. The only information shown is the cost and time remaining for GPU usage. Interestingly, the tutorials work fine and the plane can be started. However, the majority of what makes the avionics special in this module cannot be used. I've attached two log files for reference and would really appreciate any help. I thought long and hard about spending that kind of money and finally did it because of the Linux support.

TBM900_Log.txt Log.txt

[Pils]

4 hours ago, Johannizzz said:

I'm not sure how to fix this and didn't see any solution in the posts by other members with the same issue.

As a community member also, I'm not aware of one either.

4 hours ago, Johannizzz said:

Based on my logs, it seems it's encountering an issue in the mt_cairo_render.c file

I am not aware of a way to disable this function unfortunately.

4 hours ago, Johannizzz said:

a standalone ticket

Just to be clear, this forum isn't official "customer support" for X-Aviation products, the only way to open a "ticket" is via https://support.x-aviation.com/.

4 hours ago, Johannizzz said:

separate thread

Thanks, it does help keep things organized. However, you did exclude some useful information, such as the use of a Steam Deck. As a community member who just likes helping others, not speaking for the developer, just going to state some facts:

1. The latest version of TBM 900 is 4 years since release
2. The latest version of X-Plane 11 is over 3.5 years since release, and as far as I know is considered End-of-Life (will never be updated) by Laminar Research
3. The Steam Deck post-dates both of these by at least 9 months, and the OS is presumably much more up to date with regards to drivers, etc.
4. The Steam Deck hardware and software is quite custom (inc. the CPU, GPU, OS, etc.) and would be required to do proper troubleshooting (which I don't have unfortunately)

It's quite possible that AMD and/or Valve (or the open source code they rely on) have broken the sophisticated OpenGL rendering that X-Plane 11 and the TBM relies upon at some point in the last 3+ years. I'm disappointed to hear it's not working for a subset of Linux users because I know there are few addons of the TBM's caliber that support that platform. If there's a way to change GPU drivers used by SteamOS then that might be worth trying? I'm personally not familiar with the Steam Deck, or using X-Plane or AMD GPUs on Linux, sorry.

The reality is the Hot Start are actively updating the TBM product to support X-Plane 12 (support for 11 will be dropped as far as I understand it), and to bring it up to a better standard for 2025 for visuals, features, etc. As stated on the product page at time of purchase that update will be free when available. I can't say when that'll be, nobody really knows yet.

Having said that, if I come across any ideas from the community or otherwise to resolve or workaround the issue I will pass them on. Sorry I can't be of more assistance, maybe someone else can be.