Hi,

Not sure if it is a bug, but with a GF 650 and latest Nvidia Drivers (327.23) on Win7 64, turning OpenGL on results on an empty canvas.

Regards.

Same thing here when I updated to 327.23 (Win 8 64, Geforce 9600 GT). I had to revert to 320.49.

Unfortunately thats true - Open GL does not work for me either on Win7, GTX 550 Ti, driver 327.23.
Funny enough if I turn Open GL on canvas turns grey and if I try to paint on it nothing will show up HOWEVER I am actually painting. I can see layer icon is updating and if I turn off Open GL everything I did is appearing.

Chris Jones wrote:Same thing here when I updated to 327.23 (Win 8 64, Geforce 9600 GT). I had to revert to 320.49.

Argh... That does sound as if NVidia broke Krita . I mean, my code didn't change... And I still don't have any NVidia card to play with and debug

For me(Geforce gtx 560 ti) on windows 7 64 opengl works really well,except the redrawing problem I mentioned in the thread I started.
Maybe are newer drivers that create problems(I use old drivers, 311.06)

mixolydian wrote:For me(Geforce gtx 560 ti) Maybe are newer drivers that create problems(I use old drivers, 311.06)

Most probably.

One thing to play with might be the Use Texture Buffer setting. That's about the most advanced opengl feature Krita uses...

Just installed newest Nvidia drivers - 331.58. Problem with OpenGL persists. What I noticed though is that Krita is filling all canvas space with color that we are setting in "canvas border". So I guess here may be the problem.
Can you please take a look at it? I would love to use Krita again with OpenGL...

Here screenshot that may help - I set the color to pink so it will be more obvious:

Does it make a difference whether you enable texture buffering?

Sadly no, it doesnt.

Then there's nothing much I can do... If nvidia breaks their drivers from version to version, I'm sunk.

Dont be so harsh - they didnt broke it from last time much more then it was already

So what - Krita on windows without OpenGL from now on? Which makes rotating canvas virtually unusable? Damnit... Damn you Nvidia

To be completely honest I KNOW that you are upset at Nvidia but I am also sure you can fixed. I am sorry but you showed so much skill in latest months (I still remember how you were not sure if you can adjust UI on windows and look at Krita now - looks awesome!). And no, this isnt try to use some reverse psychology on you to convince you to work on it. You will not fixed it if you dont want to. Its a simple compliment.

@boudewijn: Would it help to have an Nvidia card then? I would be willing to spare some money to help fix this. Anyone else?

Yes, sure! Supporting the Krita foundation with hardware like that would help a lot. I've got a desktop I can slot in a video card (unless the power draw is extreme...). I've also had another report of this issue, with this hardware: Nvidea Geforce GT 620 CPU E820

Sadly I am in very tight with money - as far as I remember I always was If there would be enough of us even few bucks would do though - all I can do is like $10. Sorry guys, being honest here. As long as you dont think about Titan this could be doable if enough people chipped in.