SOT: puzzle with graphic driver

Serena wrote on 2/11/2012, 8:11 PM
You will remember that I fixed a problem with Photoshop and Vegas 11 (black preview) by rolling back the Nvidia driver to 8.17.12.8562. However I have to do this each time I boot the machine because the afore mentioned problems have returned. System devices say that the driver is as installed, but re-installing the same driver fixes the problems. Any computer gurus understand what is going on?

Comments

Grazie wrote on 2/11/2012, 11:21 PM
Had you reinstalled Vegas?

Serena wrote on 2/11/2012, 11:43 PM
No, I haven't. I've checked that opening Vegas11 isn't responsible: boot, open Ps, see that problem, close, open V11, confirm that problem, check GPU driver, re-install that, everything fine again. I've also tested V11 before Ps, to ensure Ps isn't trying to upset me. But I haven't tried re-installing V11.
Grazie wrote on 2/11/2012, 11:59 PM
My thoughts are that maybe Vegas is stubbornly NOT registering the updated driver. Do you have any other sw that you could determine that the driver is installed? If you do and Vegas isn't my logic would then lead me to think that something screwy has stopped Vegas from registering the new driver.

Serena wrote on 2/12/2012, 12:45 AM
That sounds interesting. I've been assuming that Vegas just uses the graphics card as it is installed, rather than exerting any direct influence. At one time I did blame Vegas (when I switched on GPU processing and the problems immediately re-appeared), but assumed that Vegas could exert no influence until it was opened. Perhaps there is a kernel that wakes on boot? That sounds good, but really I'm completely ignorant. Something in the start menu?
Serena wrote on 2/12/2012, 1:03 AM
Just to check my previous observation, I switched on GPU acceleration, restarted Vegas, and the problems did not return! I haven't rebooted the machine to check that aspect (got a project in process). I did use the Nvidia interface to check the driver and it also says 285.62 (as to be expected), but the idea of lurking kernel is still possible. I'll add that to my ticket still waiting in the SCS queue.
Grazie wrote on 2/12/2012, 1:11 AM
Did you use "APPLY" on these issue/problem sessions? I've discovered that I need to use the APPLY button, not just hit ENTER.

So, maybe not a reinstall of Vegas.



Serena wrote on 2/12/2012, 1:17 AM
Just checked that (by doing it) and still OK. There's nothing more frustrating than computers! Well, nothing more so right now.
Grazie wrote on 2/12/2012, 1:23 AM
Regarding PC frustration, did you read my new "I'm a Plank" thread this morning?


Serena wrote on 2/12/2012, 3:28 AM
Ah, indeed familiar sort of country. The number of times I do dumb stuff. A couple of days ago I shot a little intro for an instructional video (no pay job) and was very unpleased with the quality of the audio. It was clear enough, but lots of room echo. So I changed the mike and did it again, this time putting on my glasses. Ah, the first I had the switches on INT mike, not EXT as I thought! I don't think you'll match that!
Grazie wrote on 2/12/2012, 3:43 AM
No, can't match it - but I CAN trump it!!!

2 weeks ago, while filming a launch of a Community Organisation, I noticed I had a NEW Icon appear in my LCD screen. I forgive myself, as I'm new to this XF300, by 6 months (no excuse . . ). And, as you point out, I was looking 'cos the sound was iffy. I check my INTS and EXT and sure enough plonker here hadn't selected that which I should have done . . . . I look again the Icon has gone! Wow those nice Canon Chappies have provided me with an Icon which clearly indicates what is and isn't "heard" by providing a bang-on Icon. Marvellous . . . .

I think . . . .

2 minutes latter that same S******ding Icon is BACK!! But now I CAN hear everything . . What the F . . . Is going on???

I can't reach around to check my cammie, so I rotate the camera to get at the other side of the XF. What do I see in the LCD screen? Said Audio Icon "SHIFTS" across screen . . . eh???

It turned out that this organisation was running a "Hard of Hearing Loop access option" What I thought was a clever Canon Icon, was in fact the bleedin' visual sticky on the Reception Point I was videoing . . . !!! Why had it previously vanished? 'Cos a customer had stepped in front of it JUST as I was fiddling with the setup. The Audio Sign was perfectly aligned and of a similar colourway as my internal LCD Icons!

Canon? Not so clever chappies after all.

G

Steve Mann wrote on 2/12/2012, 12:01 PM
Vegas doesn't talk to the card directly. Programs, like Vegas, Photoshop, etc., go through Windows which then goes to the device driver DLL files. If you have multiple or old drivers installed, a program (like Vegas) could call a driver function and get unexpected results. Most of the time the functions are identical in the driver DLL files and you never know there's a problem. Sometimes only a specific driver will return all the data that the calling program expects. The program crashes and everyone screams "BUG".

Vegas, and other programs *could* talk directly to the driver for the video card. Some programs do, I think Autocad is one. The problem with this approach is that you are required to install a specific display adapter. Usually a pretty expensive one.