I did some follow-up troubleshooting. I upgraded all X packages to the versions in experimental -- and both bugs #379480 and #403822 are still present.
I set the time backward -- mouse clicks and keyboard shortcuts become non-responsive. I tried setting the time forward again, and it fixed the problem -- mouse clicks and keyboard shortcuts worked again. I have a correction/clarification to my previous bug report. I can continue to type in the xterm I set the clock back from as long as I don't mouse click on another window to try and change focus. Before I just tried changing focus with window manager keyboard shortcuts which had no effect. Clicking on another window seems to corrupt some state somewhere and all key input gets hosed (Ctrl-Alt-Backspace and Ctrl-Alt-Fx no longer work). $ apt-show-versions | grep xorg | sort xorg/unstable uptodate 1:7.1.0-18 xserver-xorg-core/unstable uptodate 2:1.3.0.0.dfsg-3 xserver-xorg/experimental uptodate 1:7.2-2 xserver-xorg-input-all/experimental uptodate 1:7.2-2 xserver-xorg-input-evdev/experimental uptodate 1:1.1.5-1 xserver-xorg-input-kbd/experimental uptodate 1:1.1.1-1 xserver-xorg-input-mouse/experimental uptodate 1:1.1.2-1 xserver-xorg-input-synaptics/unstable uptodate 0.14.6-1 xserver-xorg-input-wacom/unstable uptodate 0.7.4.1-6 xserver-xorg-video-all/unstable uptodate 1:7.1.0-18 xserver-xorg-video-apm/experimental uptodate 1:1.1.1-5+b1 xserver-xorg-video-ark/experimental uptodate 1:0.6.0-5+b1 xserver-xorg-video-ati/experimental uptodate 1:6.6.3-5 xserver-xorg-video-chips/experimental uptodate 1:1.1.1-6+b1 xserver-xorg-video-cirrus/experimental uptodate 1:1.1.0-5+b1 xserver-xorg-video-cyrix/experimental uptodate 1:1.1.0-6+b1 xserver-xorg-video-dummy/experimental uptodate 1:0.2.0-5+b1 xserver-xorg-video-fbdev/experimental uptodate 1:0.3.1-2 xserver-xorg-video-glint/experimental uptodate 1:1.1.1-5 xserver-xorg-video-i128/experimental uptodate 1:1.2.1-1 xserver-xorg-video-i810/unstable uptodate 2:2.0.0-1 xserver-xorg-video-intel/unstable uptodate 2:2.0.0-1 xserver-xorg-video-mga/unstable uptodate 1:1.4.6.1.dfsg.1-2 xserver-xorg-video-neomagic/experimental uptodate 1:1.1.1-6 xserver-xorg-video-nv/unstable uptodate 1:2.0.2-1 xserver-xorg-video-rendition/experimental uptodate 1:4.1.3.dfsg.1-1 xserver-xorg-video-s3/experimental uptodate 1:0.5.0-1 xserver-xorg-video-s3virge/experimental uptodate 1:1.9.1-5 xserver-xorg-video-savage/experimental uptodate 1:2.1.2-4 xserver-xorg-video-siliconmotion/experimental uptodate 1:1.4.2-1 xserver-xorg-video-sis/experimental uptodate 1:0.9.3-1 xserver-xorg-video-sisusb/experimental uptodate 1:0.8.1-5 xserver-xorg-video-tdfx/experimental uptodate 1:1.3.0-2 xserver-xorg-video-tga/experimental uptodate 1:1.1.0-5 xserver-xorg-video-trident/experimental uptodate 1:1.2.3-2 xserver-xorg-video-tseng/experimental uptodate 1:1.1.0-5 xserver-xorg-video-v4l/experimental uptodate 0.1.1-5 xserver-xorg-video-vesa/experimental uptodate 1:1.3.0-2 xserver-xorg-video-vga/experimental uptodate 1:4.1.0-5 xserver-xorg-video-via/experimental uptodate 1:0.2.2-1 xserver-xorg-video-voodoo/experimental uptodate 1:1.1.1-1 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]