On Friday, July 21, 2017 at 2:21:25 PM UTC-4, Foppe de Haan wrote:
> On Friday, July 21, 2017 at 7:48:53 PM UTC+2, Fun Zork wrote:
> > On Friday, July 21, 2017 at 3:36:42 AM UTC-4, Foppe de Haan wrote:
> > > 4k in dom0 shouldn't be an issue at all, though using a 1080 for that is 
> > > a bit wasteful. I'd suggest getting like an rx550 (or a HD 7750, like I 
> > > had lying around) for use in dom0, and passing the GTX 1080 through to a 
> > > VM (perhaps after updating the kernel to self-built 4.11?). I did not 
> > > have much success with passthrough when I still had my gtx 950, but I'm a 
> > > linux n00b, and that got in the way of troubleshooting.
> > > 
> > > The installation issues are due to the installer being somewhat older 
> > > (and including a 4.4-based kernel); they may be resolved with the 3.2.1. 
> > > release.
> > 
> > Thanks for your help.
> > 
> > Yeah, I wouldn't get a 1080 just for this purpose, that's just what I 
> > already have in my desktop, but I've been unable to get it to work with 
> > Qubes at all. I have tried both the proprietary driver and nouveau on the 
> > default kernel, and the newest kernels in both unstable and 
> > current-testing, but no luck.  From the threads I've seen, it sounds like 
> > nobody has managed to get it to work at all- not just passthrough, it won't 
> > load X at all.  My intent with this thread isn't to troubleshoot those 
> > issues.  Unless somebody actually has gotten it working, I'm ready to give 
> > up on that one.  So, I'm thinking about buying a second, cheap, card that 
> > works with Qubes that can support 4k resolutions.
> I see. It may work once rtiangha gets around to adding 4.12 support to his 
> github qubes kernel repo (-> 
> https://groups.google.com/forum/#!topic/qubes-users/yBeUJPwKwHM ), but yeah, 
> finnicky.
> > I was thinking about getting a card like the rx550, but the Qubes 
> > documentation says that it does not support the 550 because AMD GPU wasn't 
> > supported until after kernel 4.4.  If I went with a 550, are you thinking I 
> > would update to the current-testing kernel and that would get it working?  
> > Are you pretty confident in that?  If not, maybe I'll go with the 7750 or 
> > similar, since you know for sure that that works.
> 4.9 is very likely to support the rx 550 (since support for most other 
> Polaris cards was also added/improved in 4.9), but I can't find anything 
> definitive (and the Rx 550 is actually the latest Polaris card in the 
> lineup), so the 7750 is probably a safer bet, if returning the 550 is 
> non-trivial.

Great.  Thanks!

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