I just found the following in the ChanegLog of xf86-video-ati- X11R7.1-6.6.0 (the ati driver tar ball of the latest x11r7.1 release:
2006-04-01 Alex Deucher <[EMAIL PROTECTED]> * src/radeon.h: * src/radeon_driver.c: (RADEONPreInitModes), (RADEONPreInit), (RADEONResetDPI), (RADEONSwitchMode): * src/radeon_mergedfb.c: (RADEONMergedFBCalcDPI), (RADEONMergedFBSetDpi), (RADEONMergedFBResetDpi): * src/radeon_mergedfb.h: - Fix dpi when switching from clone to dualhead with MergedFB. - Add ConstantDPI option to force a particlar dpi across mode changes Both based on Thomas Winischhofer's sis code. This sound pretty much like it could be the fix to the problem we experience, doesn't it? Any chances of applying this patch? -- Screen Resolution tool fails to switch between MergedFB "dualhead" and "clone" modes https://launchpad.net/bugs/41610 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs