After a nice fresh install of Windows 7 I decided it was time to update my Linux drive too... got Ubuntu 13.04 on and it's running smoothly except colour is pretty grainy. Looks like it defaulted to 16bpp. Can't see a setting for it anywhere in settings. I also don't have an /etc/X11/xorg.conf file. Anyone know where I can set the colour depth?
Ubuntu 13.04 colour depth
- Thread starter sam_p_lay
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- Jan 20, 2010
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Go to NVidia's website and find the driver download section.
At worst, you might need to run a shell script and install a few more packages (kernel headers, gcc), but it's really not that painful. You're really much better off with the proprietary drivers, IMO.
At worst, you might need to run a shell script and install a few more packages (kernel headers, gcc), but it's really not that painful. You're really much better off with the proprietary drivers, IMO.
- Jan 20, 2010
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BTW, one of my favorite ways to test out graphics acceleration on Linux is with a game called Trackballs. Sadly, the resolution options max out at like 1600x1200, but it really looks nice when you crank up the AA settings in your driver, and framerates are smooth as glass.
Fun game, too.
Fun game, too.
- Jan 20, 2010
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I mean the graphics are actually very basic, but I think it's very slick for a free/opensource game. I just like the clean, wireframey look.
But you have to override the AA settings in your driver (NViia should have some kind of control panel app for that), because I think it doesn't use AA by default, which looks bad.
And don't enable reflections. They add almost nothing and hurt framerates a lot. But max out everything else.
But you have to override the AA settings in your driver (NViia should have some kind of control panel app for that), because I think it doesn't use AA by default, which looks bad.
And don't enable reflections. They add almost nothing and hurt framerates a lot. But max out everything else.
- Jan 20, 2010
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Uh, you're still getting 16-bit look with the proprietary drivers? What do you see when you run the NVidia control panel app? Does it tell you the bit depth? Does it correctly identify your monitor?
BTW, I think the "reflections" feature in trackballs might be raytraced on the CPU, so graphics card speed won't make a difference. It doesn't kill the performance, but on my i7, the framerate goes from like 250 fps to 35.
BTW, I think the "reflections" feature in trackballs might be raytraced on the CPU, so graphics card speed won't make a difference. It doesn't kill the performance, but on my i7, the framerate goes from like 250 fps to 35.
Should be interesting! I tried the nVIDIA ray tracing tech demo and results I think were not what nVIDIA intended to be seen 
And my monitor is a cPVA panel, 6-bit/component with FRC/dithering for the final two/six bits. Colour depth may be absolutely fine and I'm just looking at grainy images, but I figured there must be somewhere I can check the setting and see for sure. I wasn't aware an nVIDIA control panel would have been installed with the drivers but I'll have a look for one
And my monitor is a cPVA panel, 6-bit/component with FRC/dithering for the final two/six bits. Colour depth may be absolutely fine and I'm just looking at grainy images, but I figured there must be somewhere I can check the setting and see for sure. I wasn't aware an nVIDIA control panel would have been installed with the drivers but I'll have a look for one
- Jan 20, 2010
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The game is an OpenGL game from like 2005. I do not think it uses the GPU for any ray-tracing of the reflections (which I think are limited to the ball, itself). That said, perhaps there are games out there that use GPU-based ray tracing. Might be worth a bit of web searching.
Installed it but it freezes when I try to change resolution from 800x600. Shame nobody updated it for modern hardware. I've had a look in the nVIDIA control panel (turns out it did install one just like in Windows ) but no colour depth option there.
It seems stupid that the option is so hard to find. Linux is meant to be more configurable than Windows and give the user more power, but Ubuntu seems to be getting more and more like OS X. Apple-ish in design styles and in attitude (interms of "you get what you're given" options-wise). Probably should have gone with Kubuntu or Xubuntu. Not a huge deal anyway - I use Windows mostly.
) but no colour depth option there.It seems stupid that the option is so hard to find. Linux is meant to be more configurable than Windows and give the user more power, but Ubuntu seems to be getting more and more like OS X. Apple-ish in design styles and in attitude (interms of "you get what you're given" options-wise). Probably should have gone with Kubuntu or Xubuntu. Not a huge deal anyway - I use Windows mostly.
- Jan 20, 2010
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- 5,764
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I do the server install and then add the kubuntu packages, because I prefer KDE. This avoids having to mess with their proprietary window manager.
But I still don't get any color depth option in the display settings, nor does AMD's control panel app provide any control over this. I guess they just assume everyone is using 24-bit, but it'd be nice if there was a way to confirm that.
I'm really not knowledgeable about Xorg settings, but I'm sure thre's an info program that will at least be able to confirm your current display mode. If you really care, try searching for that. It seems there's nothing at the Ubuntu level.
But I still don't get any color depth option in the display settings, nor does AMD's control panel app provide any control over this. I guess they just assume everyone is using 24-bit, but it'd be nice if there was a way to confirm that.
I'm really not knowledgeable about Xorg settings, but I'm sure thre's an info program that will at least be able to confirm your current display mode. If you really care, try searching for that. It seems there's nothing at the Ubuntu level.
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