being in twinview gives only one color correction value for both monitors

[anomalous_underdog]

Binary package hint: nvidia-settings

Using: kubuntu 8.10

I have:
* an old AOC Spectrum 7GlrA as a primary monitor
* a newly bought ViewSonic VA1616w as a secondary monitor
* an NVIDIA Inno3d GeForce 7600 GS

Since my primary monitor is old, I needed to tweak its color correction values (make it brighter, lower red gamma value) in nvidia-settings, while my secondary monitor is left with its default color values. Now when I set it to Twinview, what happens is the color correction value settings for my primary monitor is also applied to the secondary monitor, making my secondary monitor too bright and unviewable. I checked in nvidia-settings and indeed, the color correction settings for the secondary monitor is gone. I think they should still be there so users can still tweak color correction values for each monitor even while in TwinView.

nvidia-settings:
  Installed: 177.78-0ubuntu2.1
  Candidate: 177.78-0ubuntu2.1
  Version table:
 *** 177.78-0ubuntu2.1 0
        500 http://ph.archive.ubuntu.com intrepid-updates/main Packages
        100 /var/lib/dpkg/status
     177.78-0ubuntu2 0
        500 http://ph.archive.ubuntu.com intrepid/main Packages
[lspci]
00:00.0 Memory controller [0580]: nVidia Corporation CK804 Memory Controller [10de:005e] (rev a3)
     Subsystem: EPoX Computer Co., Ltd. Device [1695:101b]
05:00.0 VGA compatible controller [0300]: nVidia Corporation G70 [GeForce 7600 GS] [10de:0392] (rev a1)

[Bryce Harrington (bryce)]

[This is an automated message]

Hi anomalous-underdog,

Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.

[anomalous_underdog (anomalous-underdog)]

here's the output of `sudo lspci -vvnn`

[anomalous_underdog (anomalous-underdog)]

here is the xorg log

[anomalous_underdog (anomalous-underdog)]

here's the xorg.conf

[anomalous_underdog (anomalous-underdog)]

This bug also happens If I have TwinView off and Xinerama turned on, but slightly less problematic: the color correction settings for my primary monitor no longer gets applied to both monitors (it only affects the primary monitor, which is good), but since there is only one x screen, I can't change color correction settings for my secondary monitor anymore (at least, not from nvidia-settings). My secondary monitor in this situation has its color correction settings left with default values.

My point is that color correction settings should be a property of each individual monitor, not x screens.

[bugbot (bugbot)]

This bug report was filed against an old version of Ubuntu.
Can you confirm whether this is still an issue in natty?

If you don't mind, it would be very helpful if you could update the bug
report in launchpad to 'Fix Released' if it is no longer an issue for
you, or if it is still occurring under natty, please tag the bug 'natty'
so it's easier for us to track.

[bugbot (bugbot)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.

[keenox (keenox90)]

It is still a problem. I have TwinView with nvidia drivers and still only one color correction per monitor (it's for the x screen).

[David Monro (davidm-ub)]

Definitely still a problem in Precise