nouveau driver in 12.1

I’ve installed 12.1 with the “nouveau” driver, but get unstable(flickering) screen with poor color depth.
How do I tweak for improvements?

Desktop: Compaq Presario with integrated Nvidia GeForce 6150SE graphics
“My Computer” returns: 2D Graphics: nouveau
3D Graphics: gallium

Regards,
tolaye

Why don’t yo install the propietary drivers?

http://en.opensuse.org/SDB:NVIDIA_drivers

On 22/03/12 18:06, tolaye wrote:
> I’ve installed 12.1 with the “nouveau” driver, but get
> unstable(flickering) screen with poor color depth.
> How do I tweak for improvements?

Nouveau is OK on this system though I did get bad flickering with KDE
4.8.1. I think I’ll have to try a clean install of that as there were
some problems with the updates. Certainly, nouveau works OK with 4.8.1
on openSUSE 12.2-M2.

The last time I tried the nVidia proprietary driver, on 11.4, the
results were better than nouveau but still buggy. The nouveau that came
with 12.1 was an improvement on both those so I’ve stuck with it.


Graham Davis, Bracknell, Berks.
openSUSE 12.1 (64-bit); KDE 4.7.4; AMD Phenom II X2 550 Processor;
Video: nVidia GeForce 210 (using nouveau driver);
Sound: ATI SBx00 Azalia (Intel HDA); Wireless: BCM4306

You should try latest graphics drivers stack from home:jobermayr.

On 03/23/2012 07:36 AM, jobermayr wrote:
>
> You should try latest graphics drivers stack from home:jobermayr.

If nouveau works OK for you, stay with it. That way, your graphics will not
break every time there is a kernel update. I’m using it with my HP laptop on 12.1.

On Fri, 23 Mar 2012 21:29:44 +0530, Larry Finger
<Larry.Finger@lwfinger.net> wrote:

> On 03/23/2012 07:36 AM, jobermayr wrote:
>>
>> You should try latest graphics drivers stack from home:jobermayr.
>
> If nouveau works OK for you, stay with it. That way, your graphics will
> not break every time there is a kernel update. I’m using it with my HP
> laptop on 12.1.
>

i did that for a while after installing 12.1, since that was the first
version where nouveau actually worked with my nvidia card, including
desktop effects, etc.

after a while i got restless though and installed the prop. driver anyway,
and i noticed quite a visible difference: everything appeared much clearer
with the nvidia driver.

i would try both, and if there isn’t a major quality trade-off, stick with
nouveau; it’s definitely less trouble.


phani.

Thanks phanis et al. I had used the nvidia proprietary driver earlier but had difficult experiences, which made me go the way of “nouveau”. The only challenge now is the tweaking the color depth. Does anyone know the config file to correct this?

Regards,
tolaye

What makes you think your color depth is incorrect? You can check with

cat /var/log/Xorg.0.log |grep Depth

For reference, I get

    20.311] (==) intel(0): Depth 24, (--) framebuffer bpp 32
    20.702] (==) Depth 24 pixmap format is 32 bpp

It is possible to force it persistently, but one has to be careful (if using a laptop display for example), as an incorrect value may corrupt your display, and you’ll be forced to undo any changes from runlevel 3.

The default depth can be set by editing /etc/X11/xorg.conf.d/50-screen.conf like this

Section "Screen"
  Identifier "Default Screen"

  Device "Default Device"

  ## Doesn't help for radeon/radeonhd drivers; use magic in
  ## 50-device.conf instead
  Monitor "Default Monitor"
  DefaultDepth 24
EndSection