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firefox: linux intel HD620: 3840x2160: switching issue

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  • Paskiausią atsakymą parašė jonzn4SUSE

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Hi Folk,

Firefox runs perfectly smooth in 3840x2160, so this is not a perf issue. However when switching from onboard laptop screen (2k) to my external WQHD screen, Firefox does not refresh, not reacting to input or mouse until I switch back and forth from another window. So it only refresh/repaint when main window looses and gets focus.

I have to restart firefox to make it works again.

Configuration: Linux debian stable (11) (same on PopOS) CPU: intel 8550 / GPU: Intel HD 620 RAM: 16Gb External monitor connected through usb-c 3.1

It does the same with Thunderbird. My Qt apps and terminals (alacritty) are not impacted.

Hi Folk, Firefox runs perfectly smooth in 3840x2160, so this is not a perf issue. However when switching from onboard laptop screen (2k) to my external WQHD screen, Firefox does not refresh, not reacting to input or mouse until I switch back and forth from another window. So it only refresh/repaint when main window looses and gets focus. I have to restart firefox to make it works again. Configuration: Linux debian stable (11) (same on PopOS) CPU: intel 8550 / GPU: Intel HD 620 RAM: 16Gb External monitor connected through usb-c 3.1 It does the same with Thunderbird. My Qt apps and terminals (alacritty) are not impacted.

All Replies (3)

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As a test, I would try the same steps using an HDMI connection and see if you have the same issue. Also try downloading Firefox from Mozilla. Download, unzip, and run firefox-bin from the folder and see if you have the same issue. https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

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Hi @jonzn4SUSE

Thanks for jumping in. Unfortunately I have tried this. It only happens when I switch over such high resolution.

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I can go from my laptop screen to my external 4K (HDMI cable) with no issues from my distro and Mozilla version of Firefox. see screenshot

Are you in X11 or Wayland? Did you have the same issue with Mozilla version of Firefox?


Operating System: openSUSE Tumbleweed 20230522 KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.106.0 Qt Version: 5.15.9 Kernel Version: 6.3.2-1-default (64-bit) Graphics Platform: X11 Processors: 12 × Intel® Core™ i7-9850H CPU @ 2.60GHz Memory: 125.1 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 630 Manufacturer: HP Product Name: HP ZBook 17 G6

Modified by jonzn4SUSE