Finally fixed here: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=a442fe2f2b2f20e7be0
** Changed in: qemu Status: New => Fix Committed -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1392468 Title: qemu uses a bitmap icon Status in QEMU: Fix Committed Bug description: qemu currently uses the icon in pc-bios/qemu-icon.bmp, which, obviously, is a bitmap file. It is loaded such that white pixels will be transparent. This can cause nasty artifacts in the display. Unless there is a specific reason to use bitmaps, I'd suggest moving to, e.g., a PNG file with a proper alpha channel. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1392468/+subscriptions