[mythtv-users] Sluggish Frontend on 4k TV

[Duncan Brown]

On 03/12/2015 11:56, Michael T. Dean wrote:
> On 12/03/2015 06:35 AM, Duncan Brown wrote:
>> Hi All
>>
>> I've just got a new 4k TV, and navigating the menus in mythtv is 
>> extremely slow
>>
>> Graphics card is a GT730, but I'm guessing that really make no 
>> difference as it's the CPU that is spiking massively. Once I get into 
>> any kind of TV, video etc to watch it's fine once vdpau takes over.
>>
>> On the Mythtv side of things I don't have any actual 4k content to 
>> watch anyway, but is there likely to be any way of improving the 
>> performance of the menu frontend?
>>
>> CPU is a dual core Athon 4850e, so not exactly the greatest
>
> Are you using the Qt paint engine?  If so, don't.  Set the paint 
> engine to Auto, and ensure your video drivers are properly 
> installed/configured and MythTV will use OpenGL--you'll see a message, 
> "Using the OpenGL painter," in the mythfrontend log file if you've 
> configured things properly.
>
> Mike
Hi Mike

As far as I know I'm using openGL

Here is the relevant bit

2015-12-03 12:53:05.938904 I [3509/3509] CoreContext 
mythmainwindow.cpp:991 (Init) - Using Frameless Window
2015-12-03 12:53:05.938912 I [3509/3509] CoreContext 
mythmainwindow.cpp:1002 (Init) - Using Full Screen Window
2015-12-03 12:53:06.357752 I [3509/3509] CoreContext 
mythmainwindow.cpp:1080 (Init) - Trying the OpenGL painter
2015-12-03 12:53:06.370030 I [3509/3509] CoreContext 
mythrender_opengl.cpp:76 (Create) - OpenGL: Sync to VBlank is enabled 
(good!)
2015-12-03 12:53:06.427392 I [3509/3509] CoreContext 
mythrender_opengl1.cpp:77 (InitFeatures) - OpenGL1: Fragment program 
support available
2015-12-03 12:53:06.427515 I [3509/3509] CoreContext 
mythrender_opengl.cpp:943 (InitFeatures) - OpenGL: OpenGL vendor  : 
NVIDIA Corporation
2015-12-03 12:53:06.427521 I [3509/3509] CoreContext 
mythrender_opengl.cpp:945 (InitFeatures) - OpenGL: OpenGL renderer: 
GeForce GT 730/PCIe/SSE2
2015-12-03 12:53:06.427527 I [3509/3509] CoreContext 
mythrender_opengl.cpp:947 (InitFeatures) - OpenGL: OpenGL version : 
4.4.0 NVIDIA 340.93
2015-12-03 12:53:06.427535 I [3509/3509] CoreContext 
mythrender_opengl.cpp:949 (InitFeatures) - OpenGL: Max texture size: 
16384 x 16384
2015-12-03 12:53:06.427540 I [3509/3509] CoreContext 
mythrender_opengl.cpp:951 (InitFeatures) - OpenGL: Max texture units: 4
2015-12-03 12:53:06.427546 I [3509/3509] CoreContext 
mythrender_opengl.cpp:953 (InitFeatures) - OpenGL: Direct rendering: Yes
2015-12-03 12:53:06.427550 I [3509/3509] CoreContext 
mythrender_opengl.cpp:960 (InitFeatures) - OpenGL: PixelBufferObject 
support available
2015-12-03 12:53:06.427555 I [3509/3509] CoreContext 
mythrender_opengl.cpp:131 (Init) - OpenGL: Initialised MythRenderOpenGL

thanks

Duncan