(In reply to comment #1)
> With current xorg-x11-driver-video-nouveau-.. in M6 I get hard distortion
> video,
> but with xorg-x11-driver-video-nouveau-0.0.16_20101216_1fc564f-20.2.i586 all
> Ok.

Seems to be related to this change

-------------------------------------------------------------------
Tue Jan 25 14:50:25 CET 2011 - dmueller@suse.de

- disable udev support as it causes screens to blank every 10 seconds
- update to slightly newer git for small bugfixes (no new features)
- remove nouveau-bgnr.patch which is already upstream

This would need to be git bisected to find the regression ...

OpenSUSE 11.4 RC1:
when booting with the nomodeset parameter- no distortion.

Well, nouveau requires KMS. Booting without KMS means nv driver.

Created attachment 416627 [details]
Xorg.0.log

Sorry. I did not notice:

cat /var/log/Xorg.0.log | grep -i nouveau
[    10.100] (==) Matched nouveau as autoconfigured driver 1
[    10.102] (II) LoadModule: "nouveau"
[    10.102] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[    10.124] dlopen: /usr/lib/xorg/modules/drivers/nouveau_drv.so: undefined symbol: RegionEmptyData
[    10.124] (EE) Failed to load /usr/lib/xorg/modules/drivers/nouveau_drv.so
[    10.124] (II) UnloadModule: "nouveau"
[    10.124] (EE) Failed to load module "nouveau" (loader failed, 7)

> rpm -qa | grep nouveau
xorg-x11-driver-video-nouveau-0.0.16_20101216_1fc564f-20.2.i586

Created attachment 416641 [details]
Xorg.0.log (RC2)

Xorg.0.log in OpenSUSE RC2

(In reply to comment #6)
> Created an attachment (id=416641) [details]
> Xorg.0.log (RC2)

Nothing obvious.

Ok. So this isn't a regression in nouveau driver. The previous nouveau driver didn't load at all, so Xorg fell back to nv driver. No need to bisect.

Yes, previous nouveau driver didn't load at all. Nouveau driver doesn't work with my video card.

Created attachment 417096 [details]
Screenshot (with nouveau on OpenSUSE RC2)

Could you try with

  Option "NoAccel" "on"

in "Device" section of /etc/X11/xorg.conf.d/50-device.conf.

echo 'Option "NoAccel" "on"' >> /etc/X11/xorg.conf.d/50-device.conf
   (OR echo 'Option "NoAccel" "true"' >> /etc/X11/xorg.conf.d/50-device.conf)

X server doesn't start:

(EE) Problem parsing the config file
(EE) Error parsing the config file
Fatal server error:
   no screens found

After clearing /etc/X11/xorg.conf.d/50-device.conf X server start, distorsion.

Or it is necessary to add entirely:

Section "Device"
Option 
   "NoAccel" "on"

?

Created attachment 417483 [details]
Xorg.0.log (after editing 50-device.conf)

In var. 2 (Option "NoAccel" "on" in "Device" section of /etc/X11/xorg.conf.d/50-device.conf):

* No distortion
* Windows are moved very slowly, jerks
* At window relocation Glxgears stop

Ok. So mode setting is ok, but acceleration is broken. To make performance bearable add also

 Option "ShadowFB" "on"

to "Device" section.

Created attachment 417623 [details]
final Xorg.0.log

All works correctly!

In the near future I will update main system (on HDD) and will continue testing

I own a GeForce 7025 as well and can confirm the regression from 11.3 to 11.4 RC2 with the nouveau driver.

With both options on (Option "ShadowFB" and "NoAccel") the system is as fast as in 11.3 (feelings, no benchmark)

(In reply to comment #17)
> I own a GeForce 7025 as well and can confirm the regression from 11.3 to 11.4
> RC2 with the nouveau driver.

This wasn't a regression in nouveau driver. See my comment #8. Likely you used
nv driver on openSUSE 11.3.

According to sysinfo:/  and lsmod I'm using nouveau: 
(version 0.0.15_20100401_bfb95cc-1.10)

-----
Kernel:  Linux 2.6.34.7-0.7-default x86_64
  Aktueller Benutzer:  dom@alone
  Distribution:  openSUSE 11.3 (x86_64)
  KDE:  4.6.00 (4.6.0) "release 375"

Hersteller:  nVidia Corporation
  Modell:  C68 [GeForce 7025 / nForce 630a]
  2D-Treiber:  nouveau
  3D-Treiber:  nouveau Gallium (7.8.2)

------
alone:/home/dom # lsmod |grep nv
alone:/home/dom # lsmod |grep nouveau
nouveau               552096  2 
ttm                    64561  1 nouveau
drm_kms_helper         32944  1 nouveau
drm                   221516  4 nouveau,ttm,drm_kms_helper
i2c_algo_bit            6728  1 nouveau
button                  6925  1 nouveau

Justas, could you give it another try with openSUSE 11.4 final? Testing with a LiveCD should be sufficient. Thanks.

FYI, I have a system with a GeForce 6150 chipset (on the motherboard), and also have what the original poster calls "hard distortion" running the released 11.4 32-bit live CDs (both KDE and GNOME), using the nouveau driver. (Kernel version: 2.6.37.1-1.2-default)

The mouse is clearly visible but the display is completely garbled.

Your fix above, adding the 2 entries to /etc/X11/xorg.conf.d/50-device.conf, solves the problem.

Same for GeForce 7025: distortion in 11.4 final (64-Bit KDE live USB)

I have a GeForce 7025 as well: output looks as described above (checkerboard-distorsion, mouse-pointer is fine)


simon@sbox:~> /sbin/lspci | grep GeForce
00:12.0 VGA compatible controller: nVidia Corporation C68 [GeForce 7025 / nForce 630a] (rev a2)

simon@sbox:~> uname -a
Linux sbox 2.6.37.1-1.2-desktop #1 SMP PREEMPT 2011-02-21 10:34:10 +0100 x86_64 x86_64 x86_64 GNU/Linux

redhat/fedora has apparently the same bug (haven't tested yet): https://bugzilla.redhat.com/show_bug.cgi?id=665904

there is another workaround (especially for installing from cd):
append "nouveau.noaccel=1" to the boot line in grub

I've updated the kernel to 2.6.38.3-21-desktop and the problem is solved. (GeForce 7025)

The kernel is from tumbleweed (http://download.opensuse.org/repositories/openSUSE:/Tumbleweed/standard/).

Anyone else who can confirm this?

I can confirm that the problem is fixed with latest thumbleweed kernel and also that it is still ongoing with the latest 11.4 kernel


simon@sbox:~> rpm -qa | grep kernel
kernel-desktop-2.6.37.1-1.2.2.x86_64
kernel-desktop-2.6.37.6-0.5.1.x86_64
kernel-desktop-2.6.38.4-22.1.x86_64
kernel-firmware-20101214-3.1.noarch

kernel-desktop-2.6.37.6-0.5.1.x86_64:
checkerboard as described

kernel-desktop-2.6.38.4-22.1.x86_64:
no distorsions, can use opengl or xrender as backend for kwin (effects enabled), extreme-tuxracer runs (mesa software opengl, 1.2 fps :D ), phonon-xine doesn't work, mplayer does

Ok. So it appears to be a KMS issue. Reassigning.

With the coming release of openSUSE 12.2, openSUSE kernel developers are focusing their efforts there. Reports against openSUSE 11.4 and prior will not get the attention needed to resolve them before openSUSE 12.2 is release and openSUSE 11.4 becomes unmaintained.

Please re-test with openSUSE 12.1 or openSUSE RC2+ and re-open with an updated Product if you still encounter your issue.

We apologize for this issue not getting the attention it deserves but we are focusing our resources in the area where they will have the most impact for our users.  We're working hard to make openSUSE 12.2 the best openSUSE release yet!