[Bug] [Important] Bright flashes
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@Zalex108 Thanks, i added this link to bug tracker as it could be related.
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@DoctorG I use light themes with Vivaldi Stable and dark with Vivaldi Snapshot, so I really didn't notice it at first.
Confirming issue on Debian sid. Noticed the white flash with Vivaldi Stable. Also confirming it's present in Chromium 111.
The internal setting for Theme in Vivaldi, is on Classic (default).
In full agreement with your comment re seizures.
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I'm using Archlinux with Openbox and I managed to fix this problem by adding "--force-dark-mode" launch parameter to the executable:
vivaldi-stable --force-dark-mode
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The white flash is not fixed with dark mode on Linux or Windows. Annoying and bad accessibility.
Bad Chromium bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1412787 -
people have complained about this apparent phenomenon for years in the forum in various threads, but it's always baffled me in that i've never seen it. reading down this current thread now, there seems to be a pattern of it arising in gtk toolkit desktop environments, not qt ones. is this correct? if so, then presumably that'll be why i've never seen the problem, in plasma. how odd.
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@ybjrepnfr said in [Bug] [Important] Bright flashes:
why i've never seen the problem, in plasma
I have seen such flashes in my Debian 11 KDE and on Windows 11.
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@DoctorG said in [Bug] [Important] Bright flashes:
in my Debian 11 KDE
oh. well then, i can't explain why i've never seen it, in eight years. maybe i've completely misunderstood the various historic descriptions of the symptoms' appearance, and/or when it occurs.
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@ybjrepnfr Perhaps the bug is timing issue while creating window elements and a special issue with graphcis driver - who knows, the Chromium core has sometimes starnge bugs.
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I am seeing this using all three of my installed desktop environments.
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@edwardp After testing KDE, XFCE, GNOME i can confirm. That is a Chromium trouble, i can not see a issue with Firefox.
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@DoctorG I don't have any special graphics drivers installed, both of my desktops are using the x dot org radeon driver.
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@edwardp The issue does not depend on any special GPU or driver. Chromium & Vivaldi has the bug, but not Google Chrome. We live in a browser hell.
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@DoctorG It's obviously out of our control. Hope the Chromium team can fix it.
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Something with hardware acceleration changed for me since the jump to Chromium 112 in the Vivaldi snapshots.
Because of an issue in Chromium with when running a high refresh display and a second lower refresh display, prior to 112 I had been running vivaldi with
--use-gl=egl
. I didn't have any random flashes.After the snapshot channel upgraded to Chromium 112,
--use-gl=egl
resulted in hardware acceleration being disabled.Now, running vivaldi-snapshot without
--use-gl=egl
(along with enabling the flags: Override software rendering list, GPU rasterization, Zero-copy rasterizer and Vulkan) has hardware acceleration working and has my multi-display high refresh rate issue resolved. But, I have occasionally gotten the random white flashes when loading up multiple tabs.I did not notice any random white flashes when I was running without hardware acceleration.
To me, the random white flashes seem like they are blank tabs showing up for a second. But this happens when I open a bunch of tabs in the background (like a Speed Dial folder).
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These white flashes are unbearable, looks like some Chromium & Vivaldi bug.
⇒ 🪲 https://bugs.chromium.org/p/chromium/issues/detail?id=1412787
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I still have Hardware Acceleration (HA) turned off in Vivaldi, due to the Xfce weather plugin erratic scrolling, when HA is turned on.
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All this flash with Vivaldi before window and UI is build is the reason why i do not use Vivaldi on Linux.
I am old and do not like bright windows