[Bug 103013] New: Qt/Xfce rendering problems with Radeon HD 6670

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103013

            Bug ID: 103013
           Summary: Qt/Xfce rendering problems with Radeon HD 6670
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: dpirate at metalpunks.info
        QA Contact: xorg-team at lists.x.org

I've had these rendering glitches (wrong rendering of the xfce start menu icon
and wrong scaling of some Qt 5 apps, see attached screenshots) for years on an
AMD Athlon 64 X2 + Radeon HD 6670 PC. I have two other newer AMD CPU+GPU PCs
that don't have this problem. I have no special system wide config on any of my
machines and I've tried a fresh config with another user account. So I'm
thinking this must be a GPU rendering issue. On the affected system there is
also a motherboard integrated radeon which I disabled in the BIOS.

The strange thing is that KeepassXC used to have this scaling problem, but it
no longer has. The scaling problem never disappeared with qTox however.

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