Re: [mythtv-users] (OT) Easy 'realtime' Modeline generator?
Thanks! I just had to generate some 'baseline' modelines for the resolutions I was tyring to test (since xvidtune only lets you adjust existing modelines), but then was able to use 'xvidtune' to get a few different resolutions working perfectly on my projector: 640x480720x480 768x483 800x600 All modes are interlaced, but suprisingly enough, at 640x480 and 800x600 there is no percivable flicker. For some reason I was not able to get the 720x480 and 768x483 modes to a high enough refresh rate to eliminate the interlace flicker, so these resolutions unfortunately produce a noticable amount of interlace flicker. Anyways I've set it to 800x600 and am very happy with the results. Nice & sharp & flicker free! ;-) One other question... I've setup the modelines for all of the above resolutions, and in the Monitor section have set the "modes" line to a list of the resolutions in the order that I want to use them (something like this: Note that I'm at work now so I can't cut & paste the exact line, but I think this is correct:) Modes: "800x600" "768x483" "720x480" "640x480" The KDE Graphical boot executes in 800x600, but then switches down to 768x483 before getting to the X login screen. And then 800x600 isn't available within X. So I deleted the other resolutions from the "Modes:" line (leaving only 800x600), and it now stays in 800x600 through the whole process, but now the other resolutions are not available to me within X... So what do I have wrong that would cause it to behave like that?!? TIA...(If you need my conf files, I'll have to send them this evening when I'm home again... TIA) -- Jeff > xvidtune > > emike > > [EMAIL PROTECTED] wrote: > > >I just hooked my frontend box up to my very old Sony CRT Video Projector > >(Circa > 1986) via VGA and a special modeline to generate 15khz output (768x483 @ > 59.94Hz > Interlaced). I had to use an old Matrox video card that would sync down to > 15khz and generate Composite sync. Here's the modeline I'm currently using > that > works pretty well (other than having the left and right sides of the display > chopped of by roughly 10 pixels): > > ModeLine "NTSCspec-59.94i" 14.318 768 784 848 910 483 484 492 525 > > Interlace > -CSYNC > > > >Again, it's working fine, but this modeline is 14.318Khz, and my projector > >is > capable of scanning up to 26Khz. I'd like to optimize the display mode to > take > advantage of this, and hopefully eliminate most of the interlace flicker. > > > >So I tried different Modeline settings, and it was a real pain to test > different modes as restarting X didn't seem to take the new modeline, so I > would > have to re-boot inbetween changes. And if the modeline wasn't right, then X > would fail to load and I would have to connect a standard 'vga' monitor to > display the text mode display (which is 31khz scan rate) so I can edit the > config file to try a different modeline. Then I re-boot again with the > projector connected to try it out... After about 20 attempts at different > mode > lines and having very limited success, I decided I'd just have to live with > the > 15khz mode for now. (Note: I was using a couple of online modeline > calculators > on my Laptop to generate modelines that I was trying on the Linux box, not > just > randomly trying different settings!) > > > >So as my subject line asks... Is there a 'realtime' modeline tool (similar > >to > "PowerStrip" for the PC) for Linux? You know, something that you can select > different resolutions and adjust things dynamically, and hit 'esc' to revert > to > a 'working' display if you end up with an unusable display? Or do I have to > use > a PC and PowerStrip to determine what works best with my projector, and then > generate a modeline from PowerStrip? > > > >If it makes any difference, the frontend box is a P4 @ 800Mhz running FC3, > >and > the Projector is a Sony VPH-1030Q1 with the following specs: > > VPH-1030Q (Low serial# 50x - only up to 26KHz) > > Lumens: 500 > > Contrast Ratio: 15,000:1 > > Horizontal Scanrate: 15-26KHz > > Vertical Scanrate: 50-100Hz > > RGB Bandwidth: 15MHz > > Composite Sync > > > >Thanks in advance... > > > >Jeff > > > > > > > > > > > >___ > >mythtv-users mailing list > >mythtv-users@mythtv.org > >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > > > > ___ > mythtv-users mailing list > mythtv-users@mythtv.org > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] (OT) Easy 'realtime' Modeline generator?
xvidtune emike [EMAIL PROTECTED] wrote: I just hooked my frontend box up to my very old Sony CRT Video Projector (Circa 1986) via VGA and a special modeline to generate 15khz output (768x483 @ 59.94Hz Interlaced). I had to use an old Matrox video card that would sync down to 15khz and generate Composite sync. Here's the modeline I'm currently using that works pretty well (other than having the left and right sides of the display chopped of by roughly 10 pixels): ModeLine "NTSCspec-59.94i" 14.318 768 784 848 910 483 484 492 525 Interlace -CSYNC Again, it's working fine, but this modeline is 14.318Khz, and my projector is capable of scanning up to 26Khz. I'd like to optimize the display mode to take advantage of this, and hopefully eliminate most of the interlace flicker. So I tried different Modeline settings, and it was a real pain to test different modes as restarting X didn't seem to take the new modeline, so I would have to re-boot inbetween changes. And if the modeline wasn't right, then X would fail to load and I would have to connect a standard 'vga' monitor to display the text mode display (which is 31khz scan rate) so I can edit the config file to try a different modeline. Then I re-boot again with the projector connected to try it out... After about 20 attempts at different mode lines and having very limited success, I decided I'd just have to live with the 15khz mode for now. (Note: I was using a couple of online modeline calculators on my Laptop to generate modelines that I was trying on the Linux box, not just randomly trying different settings!) So as my subject line asks... Is there a 'realtime' modeline tool (similar to "PowerStrip" for the PC) for Linux? You know, something that you can select different resolutions and adjust things dynamically, and hit 'esc' to revert to a 'working' display if you end up with an unusable display? Or do I have to use a PC and PowerStrip to determine what works best with my projector, and then generate a modeline from PowerStrip? If it makes any difference, the frontend box is a P4 @ 800Mhz running FC3, and the Projector is a Sony VPH-1030Q1 with the following specs: VPH-1030Q (Low serial# 50x - only up to 26KHz) Lumens: 500 Contrast Ratio: 15,000:1 Horizontal Scanrate: 15-26KHz Vertical Scanrate: 50-100Hz RGB Bandwidth: 15MHz Composite Sync Thanks in advance... Jeff ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[mythtv-users] (OT) Easy 'realtime' Modeline generator?
I just hooked my frontend box up to my very old Sony CRT Video Projector (Circa 1986) via VGA and a special modeline to generate 15khz output (768x483 @ 59.94Hz Interlaced). I had to use an old Matrox video card that would sync down to 15khz and generate Composite sync. Here's the modeline I'm currently using that works pretty well (other than having the left and right sides of the display chopped of by roughly 10 pixels): ModeLine "NTSCspec-59.94i" 14.318 768 784 848 910 483 484 492 525 Interlace -CSYNC Again, it's working fine, but this modeline is 14.318Khz, and my projector is capable of scanning up to 26Khz. I'd like to optimize the display mode to take advantage of this, and hopefully eliminate most of the interlace flicker. So I tried different Modeline settings, and it was a real pain to test different modes as restarting X didn't seem to take the new modeline, so I would have to re-boot inbetween changes. And if the modeline wasn't right, then X would fail to load and I would have to connect a standard 'vga' monitor to display the text mode display (which is 31khz scan rate) so I can edit the config file to try a different modeline. Then I re-boot again with the projector connected to try it out... After about 20 attempts at different mode lines and having very limited success, I decided I'd just have to live with the 15khz mode for now. (Note: I was using a couple of online modeline calculators on my Laptop to generate modelines that I was trying on the Linux box, not just randomly trying different settings!) So as my subject line asks... Is there a 'realtime' modeline tool (similar to "PowerStrip" for the PC) for Linux? You know, something that you can select different resolutions and adjust things dynamically, and hit 'esc' to revert to a 'working' display if you end up with an unusable display? Or do I have to use a PC and PowerStrip to determine what works best with my projector, and then generate a modeline from PowerStrip? If it makes any difference, the frontend box is a P4 @ 800Mhz running FC3, and the Projector is a Sony VPH-1030Q1 with the following specs: VPH-1030Q (Low serial# 50x - only up to 26KHz) Lumens: 500 Contrast Ratio: 15,000:1 Horizontal Scanrate: 15-26KHz Vertical Scanrate: 50-100Hz RGB Bandwidth: 15MHz Composite Sync Thanks in advance... Jeff ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
