New Opera update makes Tradingview charts very slow

[A Former User]

A Former User last edited by

@avl, here is the opera gpu which you can view online

https://drive.google.com/open?id=141pWqNkCijwOu1VHAdtUBOMeV2VTkt6c

and the vivaldi

https://drive.google.com/open?id=153_rjdpiqN95U6w-YF99DOTkwFOlLun_

I can try to get an older version of Opera tonight or tomorrow night. Cheers

[A Former User]

A Former User @avl last edited by

Hi @avl,

As requested I downloaded an older version of Opera (ver. 51 - see the link for the screenshot) and it worked perfectly – very fast. So clearly something in update of 52 has screwed it up. The gpu for it is the second link

http://image.ibb.co/inAOpn/op.png

https://drive.google.com/open?id=1oerlp9gT_AX2TIGUuKxJAp7LT7lO0oB4

[A Former User]

A Former User last edited by

Looking at Opera 51 and Vivaldi compared to Opera 52, in the new update Canvas and Rasterization are not accelerated, whereas they were accelerated in 51 and Vivaldi. Could this be the problem?

[leocg]

leocg Moderator Volunteer @Guest last edited by

@ezodi Most probably. Is Vivaldi based on same Chromium version of Opera 52?

[A Former User]

A Former User @leocg last edited by

@leocg, no, @avl said that Vivaldi is using an old version of Chromium. I just wonder if there's a way to manually turn on the acceleration.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@ezodi It's enabled in settings?

[A Former User]

A Former User @leocg last edited by

@leocg Can you accelerate Canvas and Rasterization in the settings? I didn't see an option.

I'm not 100% sure that that's the problem, but it's turned off in the new Opera & Chrome updates, and they are the ones causing the issue.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@ezodi I was asking about hardware acceleration in general.

You should be able force hardware acceleration for Rasterization and Canvas in opera://flags.

They were turned off most probably because of what i said in your dump of opera://gpu.

[A Former User]

A Former User @leocg last edited by

@leocg - I turned on GPU rasterization in flags and it completely wiped out the graphics in the browser - everything was just a splash of colour. Somehow I was still able to search in flags to set it back to default. That was weird.

Turning on Experimental canvas did nothing.

I don't see any other relevant options for Canvas & Rasterization.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@ezodi The flag for Canvas would be opera://flags/#disable-accelerated-2d-canvas. However I guess you will need to wait for the problems mentioned on opera://gpu to be fixed.

[A Former User]

A Former User @leocg last edited by A Former User

@leocg - Thanks. It says #disable-accelerated-2d-canvas underneath 'Accelerated 2D Canvas', but the option on the right of it is 'Enabled' already. So I don't know what that means, it sounds like a contradiction but I have no idea about this stuff.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@ezodi And setting it to disabled made no difference?

[A Former User]

A Former User @leocg last edited by

@leocg - No, it didn't work.

[A Former User]

A Former User last edited by

and this isn't just a problem with Tradingview. You can see and feel it on the Bitcoin charts at bitcoinwisdom.com – they never lagged like this before the update in Opera & Chrome

https://bitcoinwisdom.com/markets/bitstamp/btcusd

[leocg]

leocg Moderator Volunteer @Guest last edited by

@ezodi So I guess you need to wait for the issue to be fixed by Chromium and/or Intel and/or Apple.

[A Former User]

A Former User @leocg last edited by

@leocg - Thanks for trying mate.

[avl]

avl Opera last edited by

Hi @ezodi, what happened is that Chromium put your combination of GPU (Intel) and OS (macOS 10.11?) on a blacklist because it was causing rendering corruption issues. You can read more details about that issue on https://bugs.chromium.org/p/chromium/issues/detail?id=794819. To fix the rendering corruption, they have disabled acceleration of canvas / rasterization.

I recommend you keep all your settings on default, there's really not much to do here. The only real way to fix it is to update macOS to 10.12 or higher (the bug in the GPU driver that causes the rendering corruption was seen only in macOS 10.10 and 10.11, which is why they only disabled acceleration on those systems).

[A Former User]

A Former User @avl last edited by

Hi @avl – first of all thank you very much for all the work you've put in to figure this out. I'm grateful for your help.

Maybe it's superstition, but I had noticed my 2013 Macbook Air was slowing down a bit and I didn't want to upgrade to Sierra in case it exacerbated that. I've done it now though – 10.13.4 – and like you said it's fixed the problems with Tradingview, both for Opera and Chrome. It's fast and smooth again, more so in Opera than Chrome I think.

I find it a bit strange that the acceleration was disabled when I never experienced a problem with anything until the new upgrade, but that's all done now. Opera's great and I'll continue to use it as my main browser.

Thanks again for all your help. Cheers.

[avl]

avl Opera @Guest last edited by

@ezodi said in New Opera update makes Tradingview charts very slow:

I find it a bit strange that the acceleration was disabled when I never experienced a problem with anything until the new upgrade, but that's all done now.

Yes, unfortunately sometimes there's a tendency to blacklist more rather than less, since it's hard to tests all exact combinations of GPUs and OSes and in general it's better to be on the careful side (better a slow browser than one that doesn't work is the thinking). So it's perfectly possible that your exact GPU/macOS version didn't show the symptoms and was blacklisted unnecessarily.