[mythtv-users] New intel-graphics-based frontend wont switch frame rates

[Paul Gardiner]

Thanks Mark. I had libxrandr installed but not the command. Now I can 
run the command, I can see that I have an X setup that is broken in some 
way. Here's what xrandr says:

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP1 disconnected primary (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 
1100mm x 620mm
    1920x1080i    50.00
    720x576       50.00
    720x480       60.00    59.94
    640x480       60.00    59.94
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
   1920x1080 (0x48) 148.500MHz +HSync +VSync
         h: width  1920 start 2448 end 2492 total 2640 skew    0 clock 
56.25KHz
         v: height 1080 start 1084 end 1089 total 1125           clock 
50.00Hz

I know my TV has several more modes than that, and my AVReceiver reports 
many more modes even when the TV is off, plus I have a saved EDID file 
that X is supposed to be loading. The logs suggest it is loading.

I'm not altogether surprised I have X problems. I'm using my old Nvidia 
config, just with the Driver setting edited from "nvidia" to "intel", 
plus alterations to the EDID loading to mention a different output 
(under nvidia I seemed to be using an output called something like 
DPF-1, whereas not it seems to be HDMI1).

I'd try to reinitialise the X config, but I'm not sure how for intel. 
For nvidia there was a supplied script.

On 23/10/2020 18:36, Mark Kendall wrote:
> Paul
> 
> Can you post the output from 'mythfrontend -v playback' ? It should at
> least show what modes the code thinks are available (and maybe compare
> that with the output of xrandr?)
> 
> Thanks and regards
> Mark
> 
> On Fri, 23 Oct 2020 at 18:25, Paul Gardiner <lists at glidos.net> wrote:
>>
>> I've just started using an intel-graphics-based frontend. Generally all
>> has gone well. Mostly it works perfectly, but I can't get it to adjust
>> frame rate. My memory of how to set it up is hazy. I looked in
>>
>>          Appearance => Separate Modes for GUI and Video Playback
>>
>> That dialog is behaving strangely. At first it was offering me a choice
>> of 3 modes (640x480, 720x576 and one other I've forgotten). By resetting
>> mythfrontend a few times, I got it to offer 1920x1080, but then with no
>> other choices (not that I want them, but I know the TV offers more). The
>> field "Rate" is also variable. It's usually greyed out, sometimes fixed
>> on Auto, sometimes on 0. It did offer me a choice once between Auto and
>> 50Hz, but never 60 or 24.
>>
>> I'm hoping I've just missed installing a package. I do have libxrandr
>> installed, but perhaps myth controls intel using something else.
>>
>> Overall this tiny, silent Mini PC looks like it's going to be vastly
>> better than my old ION frontend, but I don't think I'm going to be able
>> to put up with the rough motion that I get without frame-rate switching.
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