[mythtv-users] s-video resolution

[Wouter van Atteveldt]

Dear List,

After failing for a couple of weeks to get the dvi out to work from my commell lv-675D mobo with integrated intel 845 graphics and s-video and dvi out, I decided to take a step back and see if I can get the s-video to work. After connecting the s-video to the yellow single video jack (part of the video/l-audio/r-audio connectors), I immediately got an image on both BIOS and Ubuntu. Ubuntu started in low-res mode with the image all weird, but after fiddling with the xorg.conf and downloading 915resolution it suddenly worked.

Two problems remain:
- on booting, it goes into 640x480 mode which fills only a small portion of my TV screen and is almost unworkable as desktop (most config screens don't show the buttons, etc.). In my xorg.conf I specified a bunch of modes, but it seems to ignore those. Using xrandr I can only see the 640x480 mode, I can manually add a 800x600 mode but it refuses to switch into that, giving a crtc error (see below)
- if I go into and out of hibernation, it does go into 800x600 mode. However, it "wraps around" so the left 150 or so pixels are "shared" between the left and right hand side of the screen. If I try the same for the 'correct' resolution for my tv (W-XGA 1366x768) it refuses to switch to that mode, the same for 1280x1024 (do I have to convince the video driver to accept that mode somehow). Strange enough, restarting X by killing it from a console does not produce the same behaviour, it simply goes back to 640x480 only. Also strange, if I do not add the 800x600 but only the 1366x768 it still goes into 800x600 (which is the resolution specified in my xorg.conf).

I've used 915resolution to add the 1366x768 mode, but that does not change anything. I've also set the resolution in my xorg.conf to this value, but that also does not seem to change anything.

My computer is based on a Commell lv-675d mobo with integrated intel graphics, and I have a JVC LCD television, I think the LT-32A85B.

Any comments on how to fix this or debug this would be greatly appreciated.

My xorg.conf is attached, three log files are posted at http://www.cs.vu.nl/~wva/upload/Xorg.log.zip : after coming out of hibernation the first time (after adding 800x600) and the second time (after adding 1366x768) and after a clean reboot after fiddling with the xorg.conf and 915resolution)

Thanks!

-- Wouter


wva at huis:~$<UrlBlockedError.aspx> xrandr
Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480
default connected 640x480+0+0 (normal left inverted right) 0mm x 0mm
   640x480        60.0*
wva at huis:~$<UrlBlockedError.aspx> gtf 800 600 60
  # 800x600 @ 60.00 Hz (GTF) hsync: 37.32 kHz; pclk: 38.22 MHz
  Modeline "800x600_60.00"  38.22  800 832 912 1024  600 601 604 622  -HSync +Vsync
wva at huis:~$<UrlBlockedError.aspx> xrandr --newmode "800x600" 38.22  800 832 912 1024  600 601 604 622  -HSync +Vsync
wva at huis:~$<UrlBlockedError.aspx> xrandr --addmode default "800x600"
wva at huis:~$<UrlBlockedError.aspx> xrandr --output default --mode "800x600"
xrandr: Configure crtc 0 failed
wva at huis:~$<UrlBlockedError.aspx> xrandr
Screen 0: minimum 640 x 480, current 640 x 480, maximum 800 x 600
default connected 640x480+0+0 (normal left inverted right) 0mm x 0mm
   640x480        60.0*
   800x600        60.0
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