[ubuntu] [SOLVED] Negative colors

[DeMus]

Hi,
I noticed while playing a .rm file, later also with .avi, that the colors are negative: red becomes green, etc.
How can I change this? Do I need another codec, or another nVidia driver for my 8500GT card? If it is the driver could somebody please explain in simple terms how to install the driver since the explanation in the README file on the nVidia driver is way too complicated. I have no idea what to do and how to do it. I am relatively new to Linux and this is way out of my league.

Thanks for your help,
DeMus

[peitschie]

Check this thread out: http://www.nvnews.net/vbulletin/show...ighlight=totem

The crux of it is you can test for this bug using the following:

xvinfo | grep -A2 XV_HUE

The XV_HUE should be 0... but for some reason it gets set to 178 when opening a movie in Totem using the GStreamer backend.

You can fix it using the following (temporary!) fix. This will need to be run after every boot, so you might want to set it to run automatically when you login possibly...

xvattr -a XV_HUE -v 0

NOTE: you'll need to install xvattr for this to work:

sudo apt-get install xvattr

[DeMus]

Originally Posted by peitschie Check this thread out: http://www.nvnews.net/vbulletin/show...ighlight=totem The crux of it is you can test for this bug using the following: xvinfo | grep -A2 XV_HUE The XV_HUE should be 0... but for some reason it gets set to 178 when opening a movie in Totem using the GStreamer backend. You can fix it using the following (temporary!) fix. This will need to be run after every boot, so you might want to set it to run automatically when you login possibly... xvattr -a XV_HUE -v 0 NOTE: you'll need to install xvattr for this to work: sudo apt-get install xvattr

Thanks, it works great. Now the colors are normal again. Just one more question: how to set the code so it will start every time I boot?
Thanks so much for your help. Realy appreciate it.

[peitschie]

Hrmm.

I've been playing with this myself (I have an identical issue to you) and it seems that you need to run it before you play any video or change brightness settings etc. so it is quite annoying. I'm still trying 2 figure out a good way of automating it or making it more permanent.

Sorry I still don't have a total solution yet, so for now I would recommend you put a launcher on your gnome panel that you can click if the colour goes funny It's what I have and it isn't too annoying juuuust yet.

[DeMus]

Originally Posted by peitschie Hrmm. I've been playing with this myself (I have an identical issue to you) and it seems that you need to run it before you play any video or change brightness settings etc. so it is quite annoying. I'm still trying 2 figure out a good way of automating it or making it more permanent. Sorry I still don't have a total solution yet, so for now I would recommend you put a launcher on your gnome panel that you can click if the colour goes funny It's what I have and it isn't too annoying juuuust yet.

Thanks again for your answer. I placed it on my desktop and can start it when I need to. At least the colors in the videos are perfect now.

DeMus

[peitschie]

Hey!

Just letting you know I have discovered another work-around that doesn't require you to manually set the hue every time you open a video

To implement the workaround, do the following:

1. Open gstreamer-properties (alt+f2, enter gstreamer-properties)
2. Change to the video tab
3. Change the default output plugin to "custom"
4. Place the following command in the bottom box: videobalance hue=-1 ! autovideosink
5. Close the box and enjoy your now correct colour

[zorba_the_greek]

Originally Posted by peitschie Hey! Just letting you know I have discovered another work-around that doesn't require you to manually set the hue every time you open a video To implement the workaround, do the following: Open gstreamer-properties (alt+f2, enter gstreamer-properties) Change to the video tab Change the default output plugin to "custom" Place the following command in the bottom box: videobalance hue=-1 ! autovideosink Close the box and enjoy your now correct colour

You saved my butt!!
Unfortunatelly, I have the same problem for Kaffeine and VLC, too..
Any solution..?

[ecekarthic]

In VLC player, go to Tools -> preferences and select VIDEO. In the Video settings, look for "Output". Change it to something like "OpenGL video output" and click on save. Restart VLC player. It works like a charm. If it doesn't work, try changing the Output to other options available in the drop down.

I'm using 9.10 and it worked perfectly for me.

Thanks,
Karthic

[sparker1]

The above two posters are wonderful, wonderful people.

[SoFl W]

Thanks, this problem would come and go on my machine and didn't know what caused it.