Re: White balance for the whole X desktop
On Sat, Apr 2, 2011 at 10:29 PM, Dan Ritter d...@tao.merseine.nu wrote: There are proprietary things that can be done with NVidia or Radeon's closed drivers, but the only native all-X11 color change system I know about is xgamma. Yep, I was aware that some tools exist attached to binary blob X video drivers, but in my case I'm using the open source Intel GPU driver and I don't see anything similar NVidia's control panel. :^( I found xgamma too. I wonder if it can be extended to allow specifying three separate channels and correction curves that aren't a simple exponential function. I'll look into it (after checking that xgamma actually works as-is on my system). If I get anywhere with that I'll put it up on launchpad and report my progress here. On Sun, Apr 3, 2011 at 6:38 PM, Tom Metro tmetro-...@vl.com wrote: Brendan Kidwell wrote: - my new Dell Vostro v130 with a decidedly blue backlight that's rather depressing Is this a trend? My ASUS VW266H also has a cold color temperature. Something I saw noted in several reviews. Easily noticeable when placed along side my laptop's display and a window spans across both displays. I think it's a tradeoff among reliability, cost, and color temperature. The blue color probably comes from an array of white LEDs that provide more even, longer-lasting and lower power illumination than the old electro-fluorescent backlights. And unfortunately their color temperature is ugly, but they probably tested well enough with focus groups to warrant the change considering all the upsides. At first I found it objectionable, and tried adjusting the monitor's built-in settings, which I was never able to get to match the laptop's display. Now I've gotten used to it, and by comparison the laptop now appears unnaturally yellow (warm). My issue really became obvious when I used my laptop next to my family's desktop PC over the weekend while doing some troubleshooting and cleanup there. Their 7-year-old free-standing LCD display is quite yellow/red, but I find it less objectionable than the blue tint of the LED-lit one I have. Brendan Kidwell ___ Discuss mailing list Discuss@blu.org http://lists.blu.org/mailman/listinfo/discuss
Re: White balance for the whole X desktop
Brendan Kidwell wrote: - my new Dell Vostro v130 with a decidedly blue backlight that's rather depressing Is this a trend? My ASUS VW266H also has a cold color temperature. Something I saw noted in several reviews. Easily noticeable when placed along side my laptop's display and a window spans across both displays. At first I found it objectionable, and tried adjusting the monitor's built-in settings, which I was never able to get to match the laptop's display. Now I've gotten used to it, and by comparison the laptop now appears unnaturally yellow (warm). What is the general procedure for creating and applying a white balance formula in modern GNOME/KDE/XFCE desktops? Any suggestions? Thanks in advance. Dan Ritter wrote: There are proprietary things that can be done with NVidia... I just recently noticed that (in Ubuntu): System - Administration - NVIDIA X Server Settings Then X Screen 0 - X Server Color Correction Not helpful in my case, as it applies to the entire X display, and not a specific monitor. -Tom -- Tom Metro Venture Logic, Newton, MA, USA Enterprise solutions through open source. Professional Profile: http://tmetro.venturelogic.com/ ___ Discuss mailing list Discuss@blu.org http://lists.blu.org/mailman/listinfo/discuss
White balance for the whole X desktop
What is the general procedure for creating and applying a white balance formula in modern GNOME/KDE/XFCE desktops? What I have: - KDE (Kubuntu 10.10) - my new Dell Vostro v130 with a decidedly blue backlight that's rather depressing What I want: - Create a profile as I'm shown some reference images and answer questions in a wizard - (Or create a profile manually while following a howto) - Apply the profile to everything in X - text, pictures, and video Any suggestions? Thanks in advance. Brendan Kidwell ___ Discuss mailing list Discuss@blu.org http://lists.blu.org/mailman/listinfo/discuss
Re: White balance for the whole X desktop
On Sat, Apr 02, 2011 at 08:54:53PM -0400, Brendan Kidwell wrote: What is the general procedure for creating and applying a white balance formula in modern GNOME/KDE/XFCE desktops? What I have: - KDE (Kubuntu 10.10) - my new Dell Vostro v130 with a decidedly blue backlight that's rather depressing What I want: - Create a profile as I'm shown some reference images and answer questions in a wizard - (Or create a profile manually while following a howto) - Apply the profile to everything in X - text, pictures, and video Any suggestions? Thanks in advance. There are proprietary things that can be done with NVidia or Radeon's closed drivers, but the only native all-X11 color change system I know about is xgamma. -dsr- -- http://tao.merseine.nu/~dsr/eula.html is hereby incorporated by reference. You can't defend freedom by getting rid of it. ___ Discuss mailing list Discuss@blu.org http://lists.blu.org/mailman/listinfo/discuss
