Game Not Starting Correctly

I have recently bought PA off the Steam store, but running it results in a blank screen (only get audio and cursor) and the error: "ERROR Planetary Annihilation: Fatal error 'parsley': User interface acceleration crashed. Please make sure you have the latest graphics drivers for your system." (from the STDOUT log).

I am running Arch Linux (x64) on Kernel 4.0.4-1-ARCH
4GB RAM
Integrated Intel graphics on the i5-4400U

I have installed the mesa and mesa-libgl drivers for both x64 and 32 bit.

Package verification in Steam showed no errors.

I emailed support and they told me to post here.

Let's say fair 4GB RAM is not enough to play PA on integrated graphics. Though black screen issue isn't caused by that.

Several things you need to do:

1. Make sure Steam runtime is enabled, I pretty much sure it's may be disabled on Arch by default.
2. Upload your game logs from this directory:
   
   Code:

   ~/.local/Uber Entertainment/Planetary Annihilation/log/

3. Try to run non-Steam version:
   • Link your Uber and Steam account there:
     https://uberent.com/user/linksteam
   • Then download non-Steam version:
     https://store.uberent.com/download/pa
   • Run from terminal as "./PA"

And of course you may also try to run PA from console this way:

Code:

~/.steam/ubuntu12_32/steam-runtime/run.sh ~/.steam/steam/SteamApps/common/Planetary\ Annihilation/PA

So you can grab full output if needed.

Thanks for your suggestions:

1. STEAM_RUNTIME is enabled
2. I've attached the logs
3. Also attached is the output of running the non-steam version (non-steam-log.txt)

Can you try running it with the command-line parameter "--software-ui"?

This worked. Thanks a lot!

Now I wonder what break Intel+Coherent compatibility on Arch.
On Ubuntu even with latest Mesa it's works well.

I have no idea, but I'm willing to try help fix it if needed.