After further investigation, if the TV was set to the "TV input" when the laptop was switched on then pre-X output would show up, but as soon as X started the output was lost. However after a few restarts and shutdowns even this doesn't work. So I haven't been able to capture the output of xrandr. (As an aside is there a way to permanently log all console input/output for use in these situations?)
What's particularly surprising is that I can't find anything in any logs to help debug this. Coupled with the fact that no config has changed on the laptop since it initially worked I feel like I'm back on windows - there's a problem but insufficient info is available for me to try and fix it! Leo > Hi Leo > > > On 27 October 2013 01:07, Leo <li...@fractal.me.uk> wrote: > > > ** > > > > Perhaps I should also have added this problem occurs before X starts. I.e. > > the first time I connected the TV I could see the boot process messages on > > it. However, now even those don't show up. > > > > > > > > Have you looked at xrandr, sample output if I run it without switches is: > > $ xrandr > Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384 > DVI-I-0 disconnected (normal left inverted right x axis y axis) > DVI-I-1 connected primary 1920x1080+0+0 (normal left inverted right x axis > y axis) 476mm x 268mm > > I would also go back to basics and double check I had the TV on the right > input channel and the laptop didn't have any switches to enable / disable > external displays/ > > Rgds > > Peter.
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