Portal > Algemene discussies > Details van topic
Kilobytez 7 sep 2013 om 1:05nm
DX level 8 GTX 460?
Please don't be stupid and post here anymore this post is pretty old so just click away.

Original post:

Portal 1 is running in software DX9 but saysd hardware DX8 and its disabled some graphical features for me and i don't know how to fix this.
Laatst bewerkt door Kilobytez; 24 okt 2013 om 9:00nm
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Lumpnhendl 9 sep 2013 om 2:09nm 
Same problem with my GTX670. All other source games work.
Podge Papin 10 sep 2013 om 5:27vm 
I've just re-installed it and mines the same, im on a Radeon HD 7870 with Win 8 x64. Plus my mouse seems to lag alot
Rambo-Mc-Mut-Nutts 12 sep 2013 om 4:24nm 
I have Windows 8 x64 with GTX 770 and just noticed DX8 too :(
KoRn Dog 13 sep 2013 om 1:24vm 
Set the launch parameter by right clicking the game in the Steam list and choosing "properties" and adding this.

+mat_dxlevel 95

Configure the game. After closing the game remove the launch parameter.
JJ350 21 okt 2013 om 5:49nm 
I have the same issue. This seems to be a common issue that Valve needs to fix asap
Orange Bitflip 24 okt 2013 om 7:47nm 
Let's answer two questions before we bug Valve.
What version driver have you installed?
Have you tried reinstalling your driver?

Even if it's a newer (less buggy) driver, it may not support your card. If it's horribly outdated, it may not support DirectX 9.0c. Also, by asking this question, we clear up if you have a proper driver or not.

Sometimes drivers install wrong. Once, I installed Catalyst and half of all triangles were missing. Reinstalled the driver and it worked perfectly.

Also, all your cards have DirectX 10 compatibility, so that can't be it.
Kilobytez 24 okt 2013 om 9:00nm 
Origineel geplaatst door ;810939350976418762:
Let's answer two questions before we bug Valve.
What version driver have you installed?
Have you tried reinstalling your driver?

Even if it's a newer (less buggy) driver, it may not support your card. If it's horribly outdated, it may not support DirectX 9.0c. Also, by asking this question, we clear up if you have a proper driver or not.

Sometimes drivers install wrong. Once, I installed Catalyst and half of all triangles were missing. Reinstalled the driver and it worked perfectly.

Also, all your cards have DirectX 10 compatibility, so that can't be it.

I am currently running the latest driver and this has been a problem for a few driver versions. I have tried to reinstall the video driver but that did not help. Its a problem with the game not my system or its software.
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