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Old 06-06-2011, 07:50 AM   #1
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Troubles with nouveau NVIDIA driver on 13.37

People are reporting no problems for many NVIDIA cards, but with the one I have in 2 machines (made by e-Machines), which is based on a 6150SE video chip, as well as a laptop from one person on IRC (sorry, not technical details on his machine), there is an issue with the pixel and/or memory layout going all wrong. The end result is lots of stripes, vertical and horizontal, where the pixels have differing offsets relative to where they should be. It's kind of like "bit splatter" except that the pixels are the expected KDE color (aside from a few chopped horizontal black bars, which I'm guessing is parts of video buffer not written to).

The video chip is not defective because it works just fine on Ubuntu 11.04, 10.10, 10.04.2, and 9.10.

Running 64 bit vs. 32 bit makes no difference anywhere.

A number of configuration changes were suggested, but none helped. I then installed Slackware64-current in a spare partition and ran startx from there, and it worked perfectly. So I went back to the original Slackware64-13.37 system and installed the kernel images and modules from -current, configured LILO to let me choose those, and rebooted with them. And that works, too. Later I did the same for 32-bit (yet another set of partitions), and success there, too.

I suspect the nouveau kernel module, or something it communicates to the corresponding X user space driver (which was not changed in any of this), to be the culprit in some way, for this particular chip.

So if you experiencing the same thing with NVIDIA video, particularly with a 6150SE chip, give the kernel packages for a try. There are also packages for in the testing section of 13.37 that may have worked, but I didn't try those.
Old 06-06-2011, 09:57 AM   #2
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FWIW, I have that video chip :

00:0d.0 VGA compatible controller: nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
I'm still running the generic kernel, I did customize it to match cpu, etc. :

Linux Duelie #1 SMP Mon May 16 14:31:50 EDT 2011 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 5200+ AuthenticAMD GNU/Linux
I have not had any problems with the Nvidia drivers. My system board is a Gigabyte board.
Old 06-06-2011, 11:30 AM   #3
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I can confirm what Skaperen has seen, hardware:

nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
Linux x86_64 AMD Athlon(tm) II X2 255 Processor AuthenticAMD GNU/Linux

and I got those streaks, I got around the issue by creating file "/etc/modprobe.d/nouveau-kms.conf" with this one line "options nouveau noaccel=1". Granted I probably lost 3d acceleration, but I never use it so not a big deal for me

I *did* read in a nvidia forum (somewhere, link lost) that kernel 2.6.38.? was suppose to correct the issue with 6150SE. Sorry, do not remember the exact kernel minor vers #, I assumed it was one one in the testing dir so I did not pay too much attention

1 members found this post helpful.
Old 07-27-2011, 01:08 PM   #4
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I had the exact problem, and followed the above instructions from Shaperen and it worked for me. I sure appreciate the post.

Last edited by zrdc28; 07-27-2011 at 01:10 PM.
Old 07-28-2011, 09:12 AM   #5
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Glad it helped.

BTW, I have tried the kernel in testing, and decided to stick with that because it was easier to make a modified install ISO that traded out the older kernel for this one. That way, I can do new installs and it automatically has the kernel and modules (as well as all packages in patches).


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