Twitter have launched a new design (see links).
For some reason, opening an image within Twitter on my second display really pisses my graphics driver off, and that screen might flash a couple of times, but ultimately goes black and idle.
When that happens, to recover it I need to hit Ctrl-W to close whatever tab I'd just opened.
Repro steps are
- Open Twitter in Chrome/Chromium
- Ensure Twitter's new interface is active
- Load a tweet containing and image (e.g. https://twitter.com/GeorgianLords/status/1151065251896528896
- Click on the image to open Twitter's modal
- Issue triggers
- Ctrl+W to close the tab
- Screen should recover
- Go back to the tweet
- Right click image - Open in New Tab
- Issue does not occur
Have been entirely unable to repro in Firefox, or with Twitter's old interface.
Can see the display twitching in syslog
Jul 16 15:05:03 milleniumfalcon org.kde.KScreen: kscreen: Primary output changed from KScreen::Output(Id: 606 , Name: "DP-3" ) ( "DP-3" ) to KScreen::Output(Id: 606 , Name: "DP-3" ) ( "DP-3" )
Jul 16 15:05:03 milleniumfalcon org.kde.KScreen: message repeated 7 times: [ kscreen: Primary output changed from KScreen::Output(Id: 606 , Name: "DP-3" ) ( "DP-3" ) to KScreen::Output(Id: 606 , Name: "DP-3" ) ( "DP-3" )]
Don't see anything in dmesg
or anywhere else either.
Chromium's version string is:
Version 71.0.3578.98 (Official Build) Built on Ubuntu , running on Ubuntu 16.04 (64-bit)
Other relevant info:
root@milleniumfalcon:~# lspci | grep VGA
0f:00.0 VGA compatible controller: NVIDIA Corporation GT218 [NVS 300] (rev a2)
whilst repro-ing yields no output, nothing going into Xorg.0.log
or similar locations either
I'm going to rephrase the problem so that I've half a chance of finding it again when searching later:
When viewing specific content in a browser (Firefox/Chromium/Chrome) in Kubuntu 16.04 (i.e. running KDE), if that content is on the secondary display that display will go blank/black until the tab containing that content is closed.
The monitor is still active (it's not gone into sleep mode, or complaining of no input - it's just not receiving/displaying any graphics).
The screen may flash between active and black a couple of times, but ultimately will fall inactive. It's necessary to either press Ctrl-W to close the relevant tab, or to blindly click off the tab. Switching between KDE workspaces will recover the screen until you switch back to whichever one contains the tab with the content.
It's not (yet) clear what the requirements are for the content to trigger this.
It's been observed when clicking in to view images on Twitter (using their modal to display), if instead the image is right clicked and View Image in New Tab
the issue does not occur. It's also been observed on MoneySupermarket.co.uk - when scrolling down they push a banner into view to entice you to join the mailing list (see attachments for screenshot), this banner (or something about it) seems to repro the issue.
Nothing appears to be being logged to any system logs, the browser console or any other location.