Qt4 on PowerPC has some trouble with colors - in particular swapping reds with blues and vice versa (will attach some pics). I have recreated this bug on an iBook G4 with Radeon mobility and a PowerMac G4 with r128, Portage and Paludis, Qt4.4 and 4.5. The common thread seems to be ppp32+ati+qt4. ACCEPT_KEYWORDS=ppc CBUILD=powerpc-unknown-linux-gnu CFLAGS=-O2 -mcpu=7450 -mtune=7450 -mabi=altivec -pipe CHOST=powerpc-unknown-linux-gnu CONFIG_PROTECT=/etc /etc CONFIG_PROTECT_MASK=/etc/env.d /etc/gconf CPPFLAGS= CTARGET= CXXFLAGS=-O2 -mcpu=7450 -mtune=7450 -mabi=altivec -pipe DISTDIR=/var/db/pkg/x11-libs/qt-core-4.4.2 FEATURES=strict sfperms FFLAGS= GENTOO_MIRRORS= INSTALL_MASK= LANG= LC_ALL=C LDFLAGS=-Wl,-O1 LINGUAS=en en_US MAKEOPTS=-j3 PORTAGE_COMPRESS= PORTAGE_COMPRESS_FLAGS= PORTAGE_CONFIGROOT= PORTAGE_RSYNC_EXTRA_OPTS= PORTAGE_RSYNC_OPTS= PORTAGE_TMPDIR=/var/tmp/paludis PORTDIR=/var/db/pkg/x11-libs/qt-core-4.4.2 PORTDIR_OVERLAY= SYNC= USE=qt3support ssl ppc alsa_cards_aoa alsa_cards_aoa-fabric-layout alsa_cards_aoa-onyx alsa_cards_aoa-soundbus alsa_ca rds_aoa-soundbus-i2s alsa_cards_aoa-tas alsa_cards_aoa-toonie alsa_cards_powermac alsa_cards_usb-audio alsa_cards_via82xx alsa _pcm_plugins_adpcm alsa_pcm_plugins_alaw alsa_pcm_plugins_asym alsa_pcm_plugins_copy alsa_pcm_plugins_dmix alsa_pcm_plugins_ds hare alsa_pcm_plugins_dsnoop alsa_pcm_plugins_empty alsa_pcm_plugins_extplug alsa_pcm_plugins_file alsa_pcm_plugins_hooks alsa _pcm_plugins_iec958 alsa_pcm_plugins_ioplug alsa_pcm_plugins_ladspa alsa_pcm_plugins_lfloat alsa_pcm_plugins_linear alsa_pcm_p lugins_meter alsa_pcm_plugins_mmap_emul alsa_pcm_plugins_mulaw alsa_pcm_plugins_multi alsa_pcm_plugins_null alsa_pcm_plugins_p lug alsa_pcm_plugins_rate alsa_pcm_plugins_route alsa_pcm_plugins_share alsa_pcm_plugins_shm alsa_pcm_plugins_softvol cameras_fuji elibc_glibc input_de vices_evdev input_devices_keyboard input_devices_mouse kernel_linux lcd_devices_bayrad lcd_devices_cfontz lcd_devices_cfontz63 3 lcd_devices_glk lcd_devices_hd44780 lcd_devices_lb216 lcd_devices_lcdm001 lcd_devices_mtxorb lcd_devices_ncurses lcd_devices _text linguas_en linguas_en_US userland_GNU video_cards_r128 ppc
Created attachment 187591 [details] Discoloration in Qt4 applications Notice the blue VLC cone (typically orange), the orange folder icon for "Open Database" (normally blue), and the blue Quit icon (normally red).
It's not a driver problem since it happens over VNC too. Color depth has also been ruled out. In keepassx, it is manifest in the display of the custom png icon set used by that application. Further work needs to be done to determine exactly what triggers the bug. I'm still not convinced that it's not application specific instead of a general QT bug at this point.
Should be fixed in QT-4.5.2, please reopen if you're still having this problem.
