First of all, that's a sick machine you have there, congratulations!
Hehehe, thanks! :D It's my first dedicated gaming rig and I sort of went full out when I bought it... it should be a good investment though.
Can you describe what exactly happens when the game crashes? Are you able to see intro or main menu, or is it like, no game window at all, just crash right away?
No intro, no main menu, the screen goes black & fullscreen or windowed for a few seconds depending on how I configure the game resolution before starting it, like it's trying to load but then quits directly to the debugger/error reporter.
Are there any other files you could provide? Maybe the .dmp file?
Yep, sure. Here's a freshly generated one, since it's created under /tmp
Do other games work for you? (This is needed to confirm if your video card drivers are installed properly).
I own quite a few games on GOG that pack Linux builds and I've had no problems whatsoever with them, they just worked (which proves gaming on Linux can be as simple as on other OSes!). For e.g.: SOMA, Divinity: Original Sin, Hollow Knight, Never Alone etc.
I even got The Witcher 3 working on the latest Wine build in staging... managed to get The Witcher 2 working in Wine as well by the way, but it does have some annoying little glitches - like rendering a black screen in cut-scenes if depth of field is enabled. But anyway, that's beside the point :).
Also - was your game installation completed successfully? Do you have the latest version of the game? Are you sure you downloaded a complete installer? The md5sum of the file is: 3fff5123677a7be2023ecdb6af3b82b6
Yes, the installation went well, no issues there. I've double checked, it's the latest version. Just checked the md5sum as well and it's a match.
You can check it by running the following command:
$ md5sum gog_the_witcher_2_assassins_of_kings_enhanced_edition_126.96.36.199.sh
No need to hold my hand, I know my way around these things :). The penguin is an old friend with few secrets by now.
I'd like to thank you again for spending time on this and I hope it helps someone else in the long run, but I've taken heed of GOG's clear message that gaming on Linux is not a priority and it pains me to say that I've bought and I'm going to install Windows 10 on my rig. It's probably the biggest concession I ever felt I had to do in order to get the full palette of games I'm interested in running properly, indirectly because of GOG's decisions as to Linux support as well. And before you ask, yes, most of the games I'm interested in playing have working Linux builds on other distribution channels.
Again, I'd like to emphasize I've not taken this step due to the issues I've been having with The Witcher 2, because it's actually the only problem I had with any of the GOG packed Linux builds - all the others I've tried worked flawlessly, and I've tried quite a few. The issue is that there aren't that many games with Linux builds in general and I don't have the time to spend tinkering in Wine to get Win builds working under Linux any more.
I'm not going to make a fuss about it any longer, it just saddens me things got in this state. In the long run someone in marketing is going to look at the statistics, see one less Linux gamer and decide gaming on Linux is still not worth investing in, though I'd switch back to Linux in a second if it got proper support... *sigh*.
So, the problem's solved, you could say, at least for me.
I am afraid I won't be able to help you any further with this one as I'm not the developer of this game and unable to address the .dmp file properly. I compared your run log with mine and I don't see anything unusual. I couldn't also find anything useful when researching similar bugs reported by users. I recommend contacting CDPR directly about the issue:
Of course, feel free to also contact our support if you have any other, non-technical questions about the product:
Thank you for your honest and direct opinion. As a Linux user myself I understand it very well and I hope you will decide to support Linux gaming in the future.