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-   -   Linux beta 9625 color corruption (http://www.nvnews.net/vbulletin/showthread.php?t=77435)

Risujin 09-29-06 09:01 PM

Linux beta 9625 color corruption
 
1 Attachment(s)
This is on a Geforce 3 TI. Have a look at this:
http://www.missirina.com/risujin/nvidia-9625.jpg

After installing Xorg 7 the 8774 driver wouldnt even start! The beta driver gives the color corruption in the image above. It seems like when writing the color value to a pixel the blue is written into the red bits somehow. 3D performance is really slow as well. Color is corrupted this way in all color depths (24, 16, and 8). My Xorg settings worked under 7xxx and have almost nothing in them (I tried various options to no avail).

Any ideas? :(

netllama 09-29-06 09:55 PM

Re: Linux beta 9625 color corruption
 
I have a few questions:
0) Does this problem persist if you're not using the Composite extension?
1) Does this problem occur as soon as X starts?
2) Does this color corruption appear in a screenshot as well (rather than external image)?

Thanks,
Lonni

Risujin 09-29-06 10:11 PM

Re: Linux beta 9625 color corruption
 
(Sorry about the large image, I didn't know how to make a thumbnail :o )

Thanks for your reply,

0) I tried commenting out the composite extension and various other parts of my xorg.conf to no avail.
1) The color is corrupted right off the bat and can be seen in GDM. The color corruption does not appear in a screenshot.
2) Using the GIMP color sampler I can pick around and get the correct RGB values.

Also look closely at the photo, I took it of GIMP on purpose. The bottom three color bars should be (from the bottom up) blue, green, and red fading from 0 to 255 but instead the blue bar is solid black (!), green is correct but segmented into blocks (not visible in photo, sorry, it is divided into about 16 blocks), the red bar is also divided into 16 blocks (which can be seen) but each block fades from red to blue!

Risujin 10-01-06 10:43 PM

Re: Linux beta 9625 color corruption
 
... any ideas? :(

Risujin 10-02-06 01:00 AM

Re: Linux beta 9625 color corruption
 
Problem solved (or deferred?)

nVidia doesn't officially list it as such but the Geforce 3 TI series is apparently a legacy GPU as this is the only driver which will work (on Linux anyway). Thanks for backporting the legacy driver to Xorg7, and please PLEASE keep supporting the legacy gpus!

(nana2)

netllama 10-02-06 11:41 AM

Re: Linux beta 9625 color corruption
 
The Geforce3 Ti 200 is not a legacy GPU at this time, and is supported by 1.0-8774 & 1.0-9625.

-Lonni

Risujin 10-06-06 10:34 AM

Re: Linux beta 9625 color corruption
 
Thats the official line but believe me, I tried both drivers and it isn't so. Perhaps these bugs will be fixed in the future but for now the Legacy Driver is the way to go for the Geforce 3.

kunjan 11-04-06 12:35 AM

Re: Linux beta 9625 color corruption
 
I have the same problem, but on a different card with 9625 driver. I have a Geforce4 440 Go card.

I took some pictures, here http://kunjan.net/a/aiglx.html

any ideas why this would happen?

stef 11-04-06 01:13 PM

Re: Linux beta 9625 color corruption
 
I've experienced a similar color corruption with 9625 beta driver and a 6600GT AGP card.
I've run the driver on a Ubuntu 6.10 (Xorg 7.1).
In detail the corruption is evident in the black zones of every type of images.
The corruption occurs with composite extensions enabled in xorg.conf and after some time.
Now I'm just reverted to the latest stable driver and the problem seems solved.
If useful I can take some screenshots or fill a bug report.

kunjan 11-05-06 01:18 AM

Re: Linux beta 9625 color corruption
 
yup its mostly evident in the blacks, sometimes in the dark shades. not really sure why this is happening.. but i cant run beryl :(

stef 11-06-06 12:51 PM

Re: Linux beta 9625 color corruption
 
I've made further tests with 9625 and 8776 driver.
My xorg.conf doesn't activate any composite extension but with both drivers, beta and stable, after a while I experience color corruption.
My Ubuntu 6.10 runs xorg 7.1.1
May be the color corruption is related to Xorg 7.1?
With my previous Slackware 11 ( Xorg 6.9) I've had no problem at all with 9625 or 8776 driver, also with composite enabled.

kunjan 11-06-06 06:46 PM

Re: Linux beta 9625 color corruption
 
Quote:

Originally Posted by stef
May be the color corruption is related to Xorg 7.1?
With my previous Slackware 11 ( Xorg 6.9) I've had no problem at all with 9625 or 8776 driver, also with composite enabled.

I had switched to "nv" driver. i just noticed today that my X was running in 16 bit color depth. So I changed it to 24 bits, and the color corruption showed up again.

Yup looks like its an Xorg 7.1.1 bug. Let me google first before I file a bug with Xorg.

Also where do I file a bug report for it? Ubuntu? or Xorg?


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