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QupZilla / qupzilla

Cross-platform Qt web browser
http://www.qupzilla.com
GNU General Public License v3.0
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Persistent rendering glitch (black region) covering top of window #2615

Open epitron opened 6 years ago

epitron commented 6 years ago

Hi there!

I'm experiencing a rendering error using Qupzilla v2.2.5 (and the latest git clone of Falkon) where a flickering black bar is covering the tab/address area of the window. (It looks a bit like the outline of a Chrome tab -- maybe some leftover Chrome code in the QtWebKit library?)

Here's a video for reference: https://0x0.st/sTF4.mp4

I'm running Qupzilla in Openbox on 64-bit Arch Linux on an old Sony Vaio netbook (Intel HD Graphics and an Intel Atom processor).

It has pretty bad X11 support (no xv), which might be a factor.

SGOrava commented 6 years ago

I would try to disable animated scrolling (it might decrease the black area while scrolling) and check how it run without gpu acceleration. You can try using --disable-gpu (but it doesn't disable it completely)

epitron commented 6 years ago

It looks the same after disabling animated scrolling and GPU acceleration.

This must be an upstream QtWebEngine problem that's being revealed by my terrible graphics chip. :)

magiblot commented 6 years ago

I believe this is the cause of the problem: https://bugs.freedesktop.org/show_bug.cgi?id=104439 See my comment #9 in that page. It's related to the linux kernel updates.