[mythtv-users] Playback looks at screensize not at monitor or windowsize

[Mike Hodson]

Dear Hika,

I read that you only recently have given a second output display to
your main 'desktop'.  I also remember that you use Gentoo, from
previous posts.

Have you enabled the 'xinerama' USE= flag? Even though Nvidia does not
support 'classic xinerama' as it were, XRandR screen sizing and
viewport management (the '2 rectangular boxes' for each screen, out of
the larger merged framebuffer) still does use these extensions.

Without USE=xinerama set, and rebuilding of all affected packages,
then nothing will understand which monitor it is on, and you will
experience very strange things.

I used 3 monitors: 2x1920x1080 and 1x1280x1024 in a horizontal layout
(5120:1080 framebuffer) and before USE=xinerama and the other
recompiles, KDE just went bat crazy.

Try this, if you haven't already, let me know how it works.

Mike


On Fri, Jun 12, 2015 at 9:58 AM, Hika van den Hoven <hikavdh at gmail.com> wrote:
> Hoi dennis,
>
> Friday, June 12, 2015, 3:39:43 PM, you wrote:
>
>
>
>> On 06/12/2015 05:24 AM, Hika van den Hoven wrote:
>>> I was further thinking about the difference between monitor and screen
>>> in X. Normally in Xinerama you have one screen (and one driver
>>> instance) for every monitor. So looking at the X screen for monitor
>>> properties like aspect ratio seems OK. But even in the old X
>>> definition it isn't OK. Even with one monitor/one screen the screen
>>> can be any size, unrelated to the monitor size. It's a virtual size,
>>> over which you can pan the monitor as a view screen. So the two are
>>> unrelated. Nvidia's step to put the monitors in one screen is a
>>> completely logical next step. Only not jet supported by most monitor
>>> aware software. But then even Xinerama is only properly supported by
>>> a few of Window managers.
>>>
>>>
>> What are you using as the video renderer?   I have a 2 monitor setup (
>> 1600x1200 & 1920x1200 ) and typically use mythtv in a window. I have
>> alot of issues when using VDPAU, especially when trying to resize.
>
>> Once I switched to using ffmpeg/xv-blit everything works perfect. I can
>> move the window from monitor to monitor,  change size, and even
>> maximizing the window keeps the proper aspect ratios.
>> _______________________________________________
>
> I haven't really tried jet, but vdpau seems to work OK. I can move the
> window around from screen to screen without problem. OpenGL gives a
> segmentation error on quitting. But that's unrelated.
> In my mailprogram in Windows7 in vbox I get now and then a floating
> point division by zero error, especially when moving between the
> monitors.
>
> Tot mails,
>   Hika                            mailto:hikavdh at gmail.com
>
> "Zonder hoop kun je niet leven
> Zonder leven is er geen hoop
> Het eeuwige dilemma
> Zeker als je hoop moet vernietigen om te kunnen overleven!"
>
> De lerende Mens
>
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