I use Arch Linux with packages:
and all menus in Blender are broken. Text in UI is visible, but when I enable menu with mouse or with a hotkey I see just white and black rectangles.
This is probably well known issue because I found similar bugs from 2006.
PS. I can't find any info how to disable hardware rendering now, both LIBGL_ALWAYS_INDIRECT and LIBGL_SOFTWARE_RENDERING doesn't change it.
Please try mesa 7.6 or git master. For software rendering, you want:
I have the same problem on Gentoo x64.
x11-base/xorg-server-22.214.171.1241-r2 USE="hal nptl sdl xorg -debug -dmx -ipv6 -kdrive -minimal -tslib"
Display controller: ATI Technologies Inc RV530 [Radeon X1600] (Secondary)
Upgrading from mesa-7.4.4 to mesa-7.5.1 or mesa-7.5.2 breaks blender menus. 7.4.4 works fine.
I have tried blender-2.48a-r3, blender-2.49a, blender-2.49b.
Seems to be fixed in mesa 7.7
on Sep 29, 2016 at 18:48:42.
(provided by the Example extension).