3d graphics performance drops over time (GTX750)

an7h · Tux's lil' helper Joined: 10 Jan 2018 Posts: 89

Okay, so there's something weird going on with my system and I don't understand what's wrong. I'm using the latest proprietary nvidia driver (396.54) with vulkan. I am currently playing some Resident Evil 4 (dolhin emulator) and Dark Souls 2 Scholar of the First Sin with DXVK (Lutris) on a fresh Gentoo install. At first everything was fine, but then I noticed a weird issue that makes games run like shit. From what I can tell this happens after I open and close games a lot of times or when games run for a long period of time. I'm guessing this has something to do with the drivers (a bug?), but I really don't know for sure. Never had this problem before and I thinking of reinstalling everything altogether, because I have no idea what is causing this. I checked if any proceses are running in the backgound that dind't close or something like that, but that's not the case. Btw, restarting my system fixes this issue until it starts to happen again. Also, this doesn't happen in Windows 10, so it's definately not a hardware isuue.

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Keruskerfuerst · Posted: Wed Sep 12, 2018 6:27 pm Post subject:

Can you check the graphics card temperature ?

an7h · Tux's lil' helper Joined: 10 Jan 2018 Posts: 89

No, it's not overheating. I checked that already, and even did a stress test to make sure. Also, I cleaned it up recently as well.

Maybe there's something wrong with my kernel config? Idk what to say at this point.

Everything else works fine. I'm only having problems with running games.
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Keruskerfuerst · Posted: Wed Sep 12, 2018 6:57 pm Post subject:

Can you check the graphics core clocks ?

an7h · Tux's lil' helper Joined: 10 Jan 2018 Posts: 89

I assume this is it?

https://i.imgur.com/WqaHy1O.png

How do I properly check it?
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Keruskerfuerst · Posted: Thu Sep 13, 2018 4:11 am Post subject:

Yes, correct.

And: can you check the logs (/var/log/.. and dmesg and top)?

mir3x · Guru Joined: 02 Jun 2012 Posts: 455

I think I saw similar bug fixed that year .. for Windows

You can try some older drivers, or just ignore that.

EDIT: I found that - it was fix for Linux

an7h · Tux's lil' helper Joined: 10 Jan 2018 Posts: 89

@mir3x
yeah, that what I was thinking as well, and looks like it's not really fixed. I didn't want to downgrade until I confirmed it's really a bug with my current driver. Looks like I'll have to try an older version for now, but I am using kernel 4.14.xx as well, so idk really. I'll reply later about the results later.

@Keruskerfuerst

dmesg: https://pastebin.com/6iMM38aP

What am I supposed to be looking for in /var/log/ and top :?:

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Keruskerfuerst · Posted: Thu Sep 13, 2018 6:14 pm Post subject:

an7h · Tux's lil' helper Joined: 10 Jan 2018 Posts: 89

@Keruskerfuerst
atm there's nothing eating up my CPU completely, but I should point out that the performance drop is only in 3d games. I'll check again if/when the problem occurs.

here's my xorg log: https://pastebin.com/716LN05s

Also, I've downgraded my nvidia-driver, so let's see what happens now.
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an7h · Tux's lil' helper Joined: 10 Jan 2018 Posts: 89

Okay, so I did some testing with an older driver, and yes, it is an issue with it. The downgrade fixed slowdown issues, but at the same time I can't get DXVK to work now with games, and overall the performance somewhat dropped. Ugh, looks like I'll have wait for a new driver to get this fixed properly. Thanks for the help, guys!

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