ID:2367565
 
(See the best response by MrStonedOne.)
SS13 worked fine before I installed 512v. This damn green (when Im off alpha-channels it turns white) blur really hinders the game.
https://imgur.com/Ee8zIEJ
I reinstalled the byond, the directx, the driver and I don't think the reinstalling windows will help. This bug is found only on servers with version 512 placed on tg build.
I hope that's all because of beta-bugs, if not - I dont know what to do with it.
It sounds like maybe you got kicked out of hardware display mode. Try switching to software mode and then back to hardware mode in Dream Seeker's client preferences (under Options & Messages).
Best response
Most /tg/ based servers preempt this issue by telling the client to turn on hardware mode: https://github.com/tgstation/tgstation/blob/ 91471700240a679431adcb3dd543da0421f3e0bc/code/modules/ client/client_procs.dm#L270

Unless 512 changed something to make that not work, its very likely hardware mode is flat failing.
Telling them to turn it on at New() doesn't prevent them from getting kicked out of it for external reasons after the fact. There's a lot of random nonsense that we've observed over the years that can cause it to switch on the fly, and usually toggling it will switch it back without further issues.
is there anyway to detect it's changed? Or should we throw something in a game loop to keep checking?
I don't think it's possible to detect, no.
You can winget "hwmode" with a null window name. I'm not sure if that'll properly detect cases where a user was kicked into software mode automatically or not, but it's worth a check.
How fix? I have the same problem. Lay it out simply, I don't know any of the lingo said in the last posts.
On your desktop, Shift+right click on Dream Seeker. Go to the Client menu, then Preferences. It has an option to turn hardware rendering on. If this is off, turn it on. If it's on, turn it off, click OK, then repeat the process to turn it back on again.