On Sat, 22 Feb 2020 at 13:19, Patrick O'Callaghan <pocallag...@gmail.com> wrote:
> On Sat, 2020-02-22 at 06:40 -0600, Richard Shaw wrote: > > On Sat, Feb 22, 2020 at 6:02 AM Patrick O'Callaghan < > pocallag...@gmail.com> > > wrote: > > > > > On Fri, 2020-02-21 at 16:18 -0800, Samuel Sieb wrote: > > > > On 2/21/20 2:46 PM, Patrick O'Callaghan wrote: > > > > > That's a good point which I hadn't thought of. I actually only > have a > > > > > single monitor connected via an HMDI switch to both video outputs. > I've > > > > > been so used to this I forgot to mention it, but clearly I have to > > > > > figure out how to run my desktop off the Nvidia card (I don't mind > > > > > losing the IGP so multimonitor isn't important). Do you know if > it's > > > > > possible to blacklist the IGP? That might be the simplest solution. > > > > > > > > You could try blacklisting the Intel one. You would need to check > which > > > > module it is, but probably "i915". Or check in your BIOS, you might > be > > > > able to set the other card as primary. > > > > > > Blacklisting the i915 didn't work, so I changed the BIOS settings and > > > that did it. > > > > > > Unfortunately, although some games work well (e.g. Witcher 3), others > > > don't (Assassin's Creed Odyssey - lots of stuttering), so I'll probably > > > back off from this for the moment, though a more high-end GPU might > > > have better results (mine's a lowly GTX-1050). It's interesting that > > > the GPU passthrough with QEMU/KVM works so well in comparison, given > > > that it's a whole virtual machine. > > > > > > > I don't thing the 1050 should be THAT bad... I did just watch a youtube > > video on gaming on linux and it specifically talked about some games need > > to compile shaders on first run. You could try leaving the game running > for > > 10-30 minutes and see if it improves. > > What I did was run the AC Odyssey in-game benchmark, which gave less > than half the framerate I get in the VM version. I'd guess that > probably reflects a worst-case scenario but a brief try at the game > itself convinced me it wasn't playable. Shaders would need to be > recompiled for each scene, which I don't think is practical. > > Do you have a link to that video? > > poc > > Ah! So you just did a direct Windows only title in a KVM+GPUPassThru+Windows(?) vs Linux+Steam+Proton Now, it just so happens that there are comments on the protonDB suggesting that in this specific title there are slowdowns (performance loss) Windows vs Proton. Could you try a few more games for a better baseline. I would really like to know the results. Thanks!
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