Troubleshooting

Mac-specific

See the Mac Intel build for Mac-specific issues.

Windows-specific

Installer

The installer on the CD-ROM, OniSetup.exe, no longer runs in Windows as of Windows 10. You can extract the game data from the installer's data file (ONISETUP.002) using Universal Extractor.

Most of the problems in Oni itself can be solved by using the Daodan DLL or by updating your drivers, but see below for more details.

Blam!s

There are a lot of reasons why Windows Oni can go completely crazy. The single most common symptom is that Oni's window will go blank, and in the middle of your screen you'll have:

There are several occasions on which Oni exits with such a message. The main issue was solved with the introduction of the Daodan DLL. However, if Oni still "blam"s at startup, this page contains a thorough list of things that cause Oni to "blam".

For any other problem, see below.

Mouse pointing problems

Starting with Windows 8, sometimes the OS applies its HiDPI support to Oni, which causes the mouse to go somewhat berserk. Typically the result is that Konoko can only look at the ceiling

Windows 8: Right-click Oni.exe, choose Properties, go under the Compatibility tab, and check the "Disable display scaling on high DPI settings" box to fix this.
Windows 10: Right-click Oni.exe, choose Properties, go under the Compatibility tab, click on the "Change high DPI settings" button, and in the resulting dialog box check the "Override high DPI scaling behavior" box. The "Scaling performed by" setting should be "Application".

Bad texturing

There are several degrees of severity (from crappy textures to ugly textures to OMFG). That's always a driver issue. Try and get a recent driver for your GFX card (upgrade to Catalyst if you have an ATI, etc.). But sometimes, Oni is incompatible with modern stuff. Try and get a really old driver, then :)

Low frame rate

Power management

This can be a problem on notebooks. Under certain conditions, the performance of the computer will decrease dramatically, for example:

• if you run on battery power
• if you let the computer overheat

Driver issue

First let's make sure that your graphic card has Direct3D and AGP acceleration enabled. Click on Start, Run, type "dxdiag", and press OK. You will see now various information about your DirectX and your computer hardware/software. Click on display, and check the Direct3D/AGP acceleration checkbox. If it is off, try enabling it, and if it is cannot be enabled, your graphics card may have not have this option, or Windows is using your card as PCI instead of AGP. In this case, try updating or re-installing all your motherboard drivers.

File:Direct3d accelaration on-1-.jpg

Make sure that you have acceleration enabled.

Now, if acceleration is enabled like in the picture above, try installing or updating your graphics drivers; don't use the ones that come with Windows. If you have an Nvidia card and if it is old (like GeForce 2 or Riva), I recommend you install an older driver. My recommendation is one from the 28.x and 60.x. range; these seemed to work better with my old card.

Nvidia users can download old drivers here. ATI users, try here.

See also "Bad texturing", above.

Widescreen

Not really a problem, but it can be a bit annoying when your Oni window gets auto-stretched to fit a 16:10 screen.

Solution

Run Oni with the -noswitch command line argument. Oni then runs in a "window" in the upper left corner of your screen, with the resolution selected in Options.

If you want that window centered with a black background behind it, use OniWindowMover.

Mouse lag

The main solution to this seems to be forcing v-sync in your graphics card settings. See HERE for more details on the problem and other possible solutions.