Hello sdy@: This issue here should be already fixed in 62.0.3202.75 regarding  issue 781556 , right? But the reporter is still seeing this with that build :-(

Any ideas? May be because the reporter is using Mac OS X 10_9_5 ?

Thanks.

These issues may be related but I don't think they're one and the same. In my case the tabs bar is unaffected, and nothing is disabled as far as I can tell. It looks most like a drawing artefact, as if the tabbar background bleeds or something goes wrong with a compositing operation.

FWIW, I'm on a MacBookPro8,1 with a Core i7 and HD3000 graphics.

Hi,

I don't know if this is related, but I just realise that Chrome's windows don't have a border anymore, nor a drop shadow behind them. Looks subtly but really weird.

R.

Can you please attach a screenshot from your mentioned issue? Thanks. 

Here's a screenshot of the no-border-nor-shadow issue, if that's what you meant. A screenshot of the main issue is already attached as far as I can see.

As to that border/shadow issue: it seemed to affect a single window only, behaving much in the same manner the grey bar does. I could drag tabs off into a new window that behaves as it should. The only difference is that I don't know how to reproduce this weird state.

As I said, I don't know if these are related; both do seem to hint at some kind of internal state, not just an issue that expresses itself at the graphics driver level (i.e. it cannot be repaired with an appropriate sequence of actions resulting in rendering operations that restore the view as it should be). Minimising, hiding the entire app, dragging the window across Spaces or toggling it to and from native fullscreen mode, none of that affected the border/shadow issue, as it doesn't affect the grey bar once it's appeared.

I did see a transient drawing (stencilling?) glitch yesterday; a window containing a paused streaming video player (youtube IIRC) showed text from another browser window that had covered it when I brought the player page back to the front. That alien content scrolled with the page view but was cleared when the scrolled-off portion was scrolled back into view. I haven't been able to reproduce this yet, so I'll just mention it here for now. FWIW that player page had not been made fullscreen.

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Unfortunately I haven't had any luck in getting this to happen. I attached a screen recording so you can see. Maybe I missed a step? If it still happens to you, it would be super helpful if you could take a screen recording with QuickTime Player showing chrome://version and the issue.

(We're also *just* starting to explore the idea of phasing out 10.9 and 10.10 support in Chrome. For what it's worth, it looks like your machine can run current macOS :).)

I think this might share a root cause with another issue. Maybe we can work with the other reporter to find a reliable way to trigger it.

By the way, I think the graphics issues are worth filing as a separate bug!

I'll try to do as you say, if necessary filming with my phone ;)

Either way, is there a way to start a 2nd Chrome session without logging in as another user, a truly independent one where I can do a full reset of all settings and deactivate all extensions?

I am aware of other cases of unexplained behaviour that no one can reproduce and that I think must thus be a result of some personal combination of Chrome settings, extensions and extensions settings.

Another explanation for not being able to reproduce is that it's indeed an issue that is related to my GPU and/or driver for it.

(I know my hardware can run the latest Mac OS. I also know upgrading and getting to a state where things work the way *I* want can take, well, months, and the big unknown is how well my hardware will run that latest OS. It's got "only" 12Gb RAM, for instance, and I need that for myself, not for the OS ;) )

Sorry for the delay. If you're comfortable with a terminal, you can run Chrome like this:

/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --user-data-dir=Desktop/'Temporary Chrome Profile'

It'll store its data in a folder called "Temporary Chrome Profile" on your desktop, which will be totally separate from your usual Chrome "instance".