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mamcubus
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 Posted: Fri Dec 23, 2005 4:59 pm |
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Joined: Sat Dec 10, 2005 12:31 pm
Posts: 10
Location:
North Carolina
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Hello all,
wondering how to make adjustments to things like brightness, color, contrast, ect. Running a nvidia card and utilizing the S-Video out.
Thanks in advance!
mamcubus
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tjc
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Posted: Fri Dec 23, 2005 5:37 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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Go into the setup menu, I think under general but it could be under tv->playback, look for a setting called something like "use Xv controls" and make sure that the box is checked.
The F key will now let you control the display brightness, contrast, hue and saturation. The G key does somethng similar for the capture card. You can also get to these through the onscreen menus during playback (M key).
For top level control and things like overscan the nviidia-settings utlility is the way to go.
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HappyTalk
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Posted: Wed Feb 15, 2006 7:36 am |
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Joined: Sat Jan 28, 2006 11:29 am
Posts: 83
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When the Brightness Dialog pops up What keys change the value?
I assume it's meant to be the arrow keys, but they don't appear to change the values, they continue to operate inc/dec channel and ff/rw. Disabling them in the keymapping for those functions still does nothing to alter Brightness. So HOW do you change the value on the Brightness Dialog?
I tried changing the Brightness field in the channel Table in Database but it doesn't seem to make any difference. So I have a terrible TV picture with no obvious means of altering it!
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EvilTwin
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Posted: Wed Feb 15, 2006 7:59 am |
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Joined: Tue Nov 08, 2005 7:31 am
Posts: 195
Location:
Secret Lair
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It should be the left and right arrow keys.
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HappyTalk
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Posted: Wed Feb 15, 2006 8:04 am |
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Joined: Sat Jan 28, 2006 11:29 am
Posts: 83
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They do nothing (though Do NOT still operate FF/RW when Brightness Dialog is popped).
I'm wondering if the latest knoppmyth 30.2 is broken in some way in this regard. Cos G.A.N.T looked awful (all blocky) when the initial install was done. I set the Theme to 'Iulius' and forgot about it. Thinking maybe the diff theme was causing the L/R keys to not operate the Brightness I reverted to G.A.N.T which booted without ANY text at all! I set it back to 'Iulius' (via WebMin) But STILL I'm left with no way of altering the Brightness. I've spent about 4 hours now googling and trying all sorts to no avail. Is there any other way to do this?
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EvilTwin
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Posted: Wed Feb 15, 2006 8:11 am |
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Joined: Tue Nov 08, 2005 7:31 am
Posts: 195
Location:
Secret Lair
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Have you got the "Xv controls" enabled under setup?
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HappyTalk
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Posted: Wed Feb 15, 2006 9:24 am |
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Joined: Sat Jan 28, 2006 11:29 am
Posts: 83
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EvilTwin wrote: Have you got the "Xv controls" enabled under setup?
Yes - I don't think the Brightness box comes up when you press F if this isn't enabled. Point 6 on this thread seems to indicate it was broken April 2005, maybe it hasn't been fixed? http://mysettopbox.tv/phpBB2/viewtopic.php?t=4239
For now I have run nvidia-settings and tried to tweak for 15 mins, that creates this file.
Code: #
# /home/mythtv/.nvidia-settings-rc
#
# Configuration file for nvidia-settings - the NVIDIA X Server Settings utility
# Generated on Wed Feb 15 15:01:18 2006
#
# ConfigProperties:
ToolTips = Yes
DisplayStatusBar = Yes
SliderTextEntries = Yes
IncludeDisplayNameInConfigFile = No
ShowQuitDialog = Yes
# Attributes:
0/DigitalVibrance[CRT-0]=0
0/DigitalVibrance[TV-0]=0
0/SyncToVBlank=1
0/LogAniso=0
0/FSAA=0
0/TextureSharpen=0
0/ForceGenericCpu=0
0/CursorShadow=0
0/CursorShadowXOffset=4
0/CursorShadowYOffset=2
0/CursorShadowAlpha=64
0/CursorShadowRed=0
0/CursorShadowGreen=0
0/CursorShadowBlue=0
0/FSAAAppControlled=1
0/LogAnisoAppControlled=1
0/RedBrightness=0.784000
0/GreenBrightness=0.784000
0/BlueBrightness=0.784000
0/RedContrast=0.392000
0/GreenContrast=0.392000
0/BlueContrast=0.392000
0/RedGamma=1.158400
0/GreenGamma=1.158400
0/BlueGamma=1.158400
0/XVideoTextureSyncToVBlank=1
0/XVideoBlitterSyncToVBlank=1
I'd like to know if anyone has tweaked these better for an nforce2-IGP (Geforce4 MX) must be pretty common for mythtv. The svideo tv picture is lousy compared to a 5 year old DTV Box. It'd be nice to see some 'as good as it gets values' . Back to google unless anyone care to chime in with their .nvidia-settings-rc file
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tjc
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Posted: Thu Feb 16, 2006 12:03 am |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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Sadly there are no universal "best settings" it varies wildly based on your TV and your video card. I found that with the GeForce4 MX4 built into my old boxes MoBo the key to getting decent results was to start with a Gamma value around 1.525 before you even start playing with hue, saturation, brightnes, ... At one point we had even tracked down some "test images" that made these adjustments easier: http://mysettopbox.tv/phpBB2/viewtopic.php?t=5123
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HappyTalk
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Posted: Thu Feb 16, 2006 12:24 pm |
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Joined: Sat Jan 28, 2006 11:29 am
Posts: 83
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On the Finding Nemo DVD is THX optimiser which could be used I suppose. I've read that people say the nvidia cards are too heavy on the red, so maybe that should be individually less in the gamma settings?
BTW the link you posted was blank, I tried all perms of a diff last digit and guess this was the one?
http://mysettopbox.tv/phpBB2/viewtopic.php?t=5128
You post some interesting things re why xv controls may not have worked I'll try them out sometime to see why it didn't work. Running nvidia-settings alongside some video actually playing back seems to be the best option for me. This together with going PAL interlaced seems to give best TV picture.
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elgordo123
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Posted: Thu Feb 16, 2006 1:41 pm |
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Joined: Thu Feb 12, 2004 2:54 pm
Posts: 392
Location:
Beaumont, CA
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Someone posted awhile ago to test the settings on an episode of the Simpons. It works great for setting colors, etc. All of the colors are pretty consistent so if youv'e watched it before (and who hasn't really?) then you will know how the colors should look. I use that method and it works perfectly.
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tjc
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Posted: Thu Feb 16, 2006 9:19 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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rkshack
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Posted: Tue Jan 09, 2007 11:43 pm |
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Joined: Sat Oct 29, 2005 6:57 am
Posts: 176
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HappyTalk wrote: They do nothing (though Do NOT still operate FF/RW when Brightness Dialog is popped).
I am having a similar problem. Did you ever figure out why it is not working?
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Too Many Secrets
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Posted: Wed Jan 10, 2007 8:50 am |
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Joined: Fri Oct 20, 2006 12:04 pm
Posts: 905
Location:
LA, CA
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rkshack wrote: HappyTalk wrote: They do nothing (though Do NOT still operate FF/RW when Brightness Dialog is popped). I am having a similar problem. Did you ever figure out why it is not working? Same here, R5D1
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mythedoff
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Posted: Wed Jan 10, 2007 12:04 pm |
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Joined: Mon Jul 31, 2006 10:41 pm
Posts: 149
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Too Many Secrets
I just tried it and it worked for me on R5D1. Hitting the F key on the keyboard, I'm gave up running headless, toggles the various settings of volumne, brightness, contrast, color and hue. Thel left-right arrows worked on both the keyboard and the remote[mceusb2]. This is with Nvidia fx5200 with svideo-out with pvr-500. Not sure what is different that it is not working for you or others.
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pairajacks
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Posted: Sun Jan 14, 2007 10:37 pm |
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Joined: Tue Oct 24, 2006 8:13 pm
Posts: 40
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I enabled the Xv in the General Myth setup, and hitting F brings up the pop-up dialogue (similar to the sound dialog), but I can't find the key combination to change it.
How are people doing this?
Were you able to make your live-tv and recorded TV about as good as sticking the cable right to the TV. My picture quality is poor: All the colors are oversaturated and blurry. I found the gama setting - but it was already at zero. Adjusting it only made things worse.
I'm using a PVR-150 with MythTV R5D1. I'm collecting the video and sound from the output of my DishNetwork reciever (S-video, and rt/left composite rca plugs, respectively) and then composite rca video to the TV (audio off PC speakers).
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