Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
ddccontrol with NVidia broken?
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Desktop Environments
View previous topic :: View next topic  
Author Message
LauPro
n00b
n00b


Joined: 05 Jan 2004
Posts: 43
Location: Gelderland, The Netherlands

PostPosted: Mon Apr 08, 2013 9:59 pm    Post subject: ddccontrol with NVidia broken? Reply with quote

I used to use ddccontrol for changing my gamma on my displays (I have 3 of them). Some time ago it got broken and I was not been able to fix it.

Currently the ddccontrol-program says 'DDC/CI Supported: No'. What can be wrong? I have i2c compiled into the kernel and I use the NVidia binary driver, I don't use a framebuffer.
Back to top
View user's profile Send private message
wuzzerd
Guru
Guru


Joined: 05 Jan 2005
Posts: 434
Location: New Mexico

PostPosted: Tue Apr 09, 2013 1:41 am    Post subject: Re: ddccontrol with NVidia broken? Reply with quote

I never could get it to work, I don't think Nvidia supports it. If you use nvidia-drivers nvidia-settings is available.

If you just want to set gamma values emerge xgamma. Simple commands like:

Code:
xgamma  -gamma 1.3
xgamma -rgamma 1.4 -bgamma 1.2 -ggamma 2.


HTH
Back to top
View user's profile Send private message
LauPro
n00b
n00b


Joined: 05 Jan 2004
Posts: 43
Location: Gelderland, The Netherlands

PostPosted: Fri Apr 12, 2013 10:16 pm    Post subject: Reply with quote

I really would like to use the DDC because I want to change the brightness, not the gamma. Strange thing is the screen DPI readout does work...
Back to top
View user's profile Send private message
Ant P.
Advocate
Advocate


Joined: 18 Apr 2009
Posts: 2507
Location: UK

PostPosted: Sat Apr 13, 2013 5:19 pm    Post subject: Reply with quote

The old ddccontrol used direct PCI access to change monitor settings. The new one uses the standard kernel I2C interfaces, which doesn't work with the blob for obvious reasons.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Desktop Environments All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum