Comment 48 for bug 1308105

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douglas sargent (dbsargent) wrote : Re: [Bug 1308105] Re: Xfce resets TV mode to NULL when power cycled

Hey can you please send me some install information so that I can try it
out.

Cheers

Doug
On Nov 23, 2014 3:40 PM, "Chris" <email address hidden> wrote:

> Alexander's patch also works nicely for me! So awesome to have a font I
> can read again and not to have to mess with Linux every time I turn off
> the receiver or switch it to a different input. Nice work!
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1308105
>
> Title:
> Xfce resets TV mode to NULL when power cycled
>
> Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
> Confirmed
> Status in xfce4-settings:
> Confirmed
> Status in “nvidia-graphics-drivers” package in Ubuntu:
> Invalid
> Status in “nvidia-graphics-drivers-331” package in Ubuntu:
> Invalid
> Status in “xfce4-settings” package in Ubuntu:
> Confirmed
>
> Bug description:
> I had an HTPC with Mythbuntu 12.04 installed. Upon upgrading a new
> behavior that if the TV is power cycled it no longer detects a link
> with the HTPC.
>
> When this happens I can find in the xorg log that there is an
> accompanying log item:
>
> [ 39829.509] (II) NVIDIA(0): Setting mode "NULL"
>
> After debugging with NVIDIA at
> https://devtalk.nvidia.com/default/topic/729955/linux/tv-stops-being-
> detected/ we've deteremined it's a X client that reacts to the RANDR
> events causing the mode to be set to NULL.
>
> Working through the list in an Xfce environment, the culprit is
> xfsettingsd. If xfsettingsd is running, it causes the TV to come up
> in a NULL mode. If it's killed, it remains in the mode it was
> previously running in.
>
>
> Until this is fixed, this behavior can be worked around with a simple
> shell script:
> ==============================
> #!/bin/sh
> #Fix TV state when HDMI link is lost.
> #By Mario Limonciello <email address hidden>
>
> OUTPUT="HDMI-0"
> BAD_MODE="1280x720"
> GOOD_MODE="1920x1080"
>
> for MODE in $BAD_MODE $GOOD_MODE; do
> DISPLAY=:0 xrandr --output $OUTPUT --mode $MODE
> sleep 2
> done
> ==============================
>
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>