Expresscard egpu won't launch Steam games in nvdia mode. Ubuntu linux.
 
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Expresscard egpu won't launch Steam games in nvdia mode. Ubuntu linux.  

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Kevin Smallman
(@kevin_smallman)
New Member
Joined: 1 month ago
 

Hi there, first post.

To put it briefly, I think the problem i'm having is that ubuntu says my screen/card is not DRI2/3 capable.

I'm not entirely sure if this is an egpu problem or an ubuntu driver problem but I thought I'd start here.

My laptop is a thinkpad T430, so I'm using an expresscard gdc beast.  I've just bought an nvidia gtx 1650 super card to go in it.  Ubuntu provides correct up to date drivers through a 'meta package'.  The system recognizes the card on boot and uses the 'nvidia' prime mode, so I get a display on an external monitor connected to the card.

However, if for example I launch steam in windowed mode there is just black inside the part where the game library, store images/videos should be, unless I switch to fullscreen mode.  Then if I try to launch a game they just don't work.

If I run glxgears with the DRI_PRIME=1 option it reports that the screen is not DRI capable, and that it tries and fails to find a software renderer.  Solutions to this general problem mainly point to making sure you have the correct nvidia drivers installed and not the nouveau driver, and also the i386 nvidia package - both of which I'm sure I have.

So, what am I missing then?

Thanks.

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Kevin Smallman
(@kevin_smallman)
New Member
Joined: 1 month ago
 

Ok I fixed this, it wasn't an egpu problem it was a library problem.

Duplicates in /usr/local were causing the symlinks to point to the wrong places.

Found the problem in nvidia's manual of all places.

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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