Lifting the security restrictions since this isn't a security bug. Hopefully someone who works on session restore can come take a look at your report and see if there's an issue.

Could you clarify what you mean by 'black screen'? Is the window containing the tabs black? Do you see the 8-10 tabs, but clicking on each tab you only see black?

Hi,

i am able to see tab but if i click tab it's showing black screen. this is
applicable to all tab.

Thanks,
Vishal

You can see more PoC here.

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	google-2.JPG 40.2 KB View Download

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	google.png 107 KB View Download

Tested on Chrome Stable #59.0.3071.115 and Canary #61.0.3149.0 on Windows 7 and unable to reproduce the issue.
 
Steps followed:
1. Launched browsers - Chrome and Canary.
2. Opened more than 10 tabs with different websites (Eg. Twitter, Youtube, CNN, BBC, news.google.com, Yahoo and others).
3. Used machine for some time (20 minutes).
4. Shut down the machine.
5. After 14 hours switched on the machine on same IP.
 
Observations - Upon launching the browsers, “Restore” option is not seen and blank screen is also not displayed. A normal new tab is opened on both Chrome and Canary browsers.
 
@Vishal -- Could you please try updating your Chrome to latest stable version as mentioned and by removing the extensions and creating a new profile to verify if the issue still persists.
 
Please let us know if we have missed anything.
 
Thanks in advance.

Hi ,

i have doubt on step 5.

there you have to use another IP (different public ip).
i already shared that PoC

Thanks,

Thank you for providing more feedback. Adding requester "pnangunoori@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Tested on Chrome Stable #59.0.3071.115 and Canary #61.0.3150.0 on Windows 7 and unable to reproduce the issue even after using different IP.

@Vishal -- Could you please try updating your Chrome to latest stable version as mentioned and by removing the extensions and creating a new profile to verify if the issue still persists. If the issue persists, could you please provide GPU of the machine used, it will help us in further triaging the issue.

Thanks in advance.

Hi Team,

I updated to latest version Version 59.0.3071.115 (Official Build) (64-bit)
.
my computer's GPU info:
intel (R) Core(TM) i5-5300U CPU @2.30 GHz
64-bit os

i am still able to reproduce.
Please let me know for more information.

Thanks,
Vishal

Thank you for providing more feedback. Adding requester "pnangunoori@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Tested on the below GPU's, but couldn't reproduce the issue.

OS: Windows 7 Enterprise 64-bit(6.1, Build 7601)
System Manufacturer & Model- Lenovo 7033HZ6
Processor: Intel(R) Core(TM) i5-2400 CPU @3.10GHz

OS: Windows 7 Professional 64-bit(6.1, Build 7601)
System Manufacturer & Model- HP Z420 Workstation
Processor: Intel(R) Xenon(R) CPU E5-1650 v2 @ 3.50GHz

Requesting someone from Dev team to look into this issue.

Thanks.

mine is DELL i5

Requesting someone from the respective team for help in further debugging and triaging of this.

Cc'ing sky@(https://cs.chromium.org/chromium/src/chrome/browser/sessions/OWNERS) for inputs.

I'm not sure what could be causing this. I don't think it's related to session restore, but more likely compositing issues.
+Dana and John in case they have ideas.

I think a trace would go a long way. When you see these black tabs, can you record a quick trace that includes you making one of the black tabs active?

Tracing info: https://www.chromium.org/developers/how-tos/trace-event-profiling-tool

2 different traces would be useful. One with "frame viewer" selected. And One where you choose "frame viewer" then go to "edit categories" and ensure both "cc.debug" and "cc.debug.picture" are checked in the right-side column.

Thanks. That would let us narrow down what's broken for you.

Hi There,

I tried but its showing black screen for that also.
Please find below report.


Thanks,
Vishal

Issue has not been modified or commented on in the last 365 days, please re-open or file a new bug if this is still an issue.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot