topic Re: Constant dropped frames in Sky Q

Constant dropped frames

Q-tips — Sat, 09 Dec 2023 10:28:57 GMT

I've been suffering from frequent brief video glitches on all channels for several weeks - no artifacts, just dropped frames causing the video to jump for a moment every couple of minutes on Sky content only - it doesn't happen when viewing Netflix etc via the TV. Sometimes accompanied by an audio dropout. Any ideas? This is on a hard-wired system running on a gigbit fibre network and the behaviour persists through reboots and HDMI cable swapping. Satellite signal is very strong. Sky Q box was replaced approx 6 months ago when engineer also checked wires to the dish. I have constant 930Mbps up and down.

Re: Constant dropped frames

PandJ2020 — Sat, 09 Dec 2023 10:41:05 GMT

@Q-tips wrote:
Any ideas?

Q insists on a fixed video mode regardless of the material source. Default is 1080/50 (or 4k/50) - which can sometimes result in a 'mismatch' of frames.

There is an 'app judder reduction option' which switches apps to 1080/60 (4k/60) which may be better for some material.

Whilst it maintains the highest compatibility it may not give the best video quality. If your TV has a native app then it will almost always be better to use that.

Re: Constant dropped frames

oldfella — Sat, 09 Dec 2023 10:44:13 GMT

Hi @Q-tips

Your Download speeds are irrelevant to Q as it needs nothing like this to achieve reliable download and streaming.

When you turned off the Q WiFi was this done immediately after a Network reset on each individual Q box. (Without using WPS)?

Re: Constant dropped frames

Chodley — Sat, 09 Dec 2023 11:34:51 GMT

Dish, box or hdmi cable I reckon.

Your sig mentions pixellation in the past which suggests dish would be my first suspect.

Re: Constant dropped frames

cuke — Sat, 09 Dec 2023 12:42:44 GMT

@Q-tips I purchased a LG TV, once, for my daughter and the motion behaviour with anything Sky was appalling. The feed on any Sky channels used to freeze then attempt to catch up with it causing Hobbits to run faster than Usain Bolt, never had the same with any Samsung TV's.

The solution was to adjust the motion settings within the TV

You can use Phil Hintons, from the excellent AVForum, picture settings here https://youtu.be/K27LomsyyZ0 they are for the G2 but can be used also for the C2 as well.

Re: Constant dropped frames

PandJ2020 — Sat, 09 Dec 2023 13:19:12 GMT

@cuke wrote:
@Q-tips ... motion behaviour with anything Sky

If the native material is being forced into an 'incorrect' framerate then subsequent processing by the TV could make a dog's dinner of it...

Re: Constant dropped frames

Chodley — Sat, 09 Dec 2023 13:25:37 GMT

@PandJ2020 wrote:
@cuke wrote:
@Q-tips ... motion behaviour with anything Sky
If the native material is being forced into an 'incorrect' framerate then subsequent processing by the TV could make a dog's dinner of it...

This is broadcast material though so it's all at 50 (or sped up to 25 and doubled.)

Re: Constant dropped frames

PandJ2020 — Sat, 09 Dec 2023 13:33:11 GMT

@Chodley wrote:
This is broadcast material though so it's all at 50 (or sped up to 25 and doubled.)

Duh, I should have read the OP properly... (Unless the source material has been pre-processed to 50Hz, e.g. 60Hz American master)

Re: Constant dropped frames

Chodley — Sat, 09 Dec 2023 14:59:06 GMT

@PandJ2020 wrote:
@Chodley wrote:
This is broadcast material though so it's all at 50 (or sped up to 25 and doubled.)
Duh, I should have read the OP properly... (Unless the source material has been pre-processed to 50Hz, e.g. 60Hz American master)

Yeah although a majority of their stuff (that's worth watching) is shot at 24 I guess

Re: Constant dropped frames

Digi+Chris — Tue, 20 Jan 2026 11:58:23 GMT

Hi, I get exactly the same.

I am running a Sky Q 2tb box on my new Sony Bravia 8 OLED TV.

The problem randomly happens but sounds exactly the same as the issue you have.

The only way to correct is to reboot the SKY Box.

If I try my Blu-ray player or inbuilt TV tuner, the problem isn't evident , indicating it's an issue with the Sky Box or an incompatibility issue.

The other issue I get is occasionally the Sky box won't output any picture at all through its HDMI input.

I have tried changing channels, flicking through the inputs etc.

Again, inbuilt tv tuner is fine and so are pictures from the Blu-ray player.

If I reboot the TV, it sorts the issue.

These issues don't happen every time I watch SKY on the Sony TV , just occasionally .

I have SKY mini boxes and none of these issues show on those boxes or TVs connected to them.

I have spoken to SKY and they have no idea what's causing the problems.