When I upgraded my Dell Inspiron 2650 from Hardy Heron to Lucid my onboard keyboard and mousepad died. Appears to be bug 555169.
If I: sudo gedit /etc/default/grub then comment out the line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to be #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" keyboard and mousepad work again and it has the advantage that I see the reports as the computer boots. If I leave it uncommented but add acpi=off as follows GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off" it also works but has the disadvantage it turns off the acpi which takes away some functionality. I found that commenting and uncommenting the GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" line made the fault reproducible every time. A usb keyboard and mouse always worked so I got the following test result. with the line uncommented (natural state) using dmesg | grep i8042 I got [ 0.802963] i8042.c: Can't read CTR while initializing i8042. [ 1.530601] i8042: probe of i8042 failed with error -5 with the Linux_Default line commented (fixed) and then using dmesg | grep i8042 I got [ 0.341694] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 0.341845] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 0.368314] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input5 [ 19.906063] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input7 On site http://ubuntuforums.org/showthread.php?t=1474694 someone says it is still a problem on Meerkat and on the next page http://ubuntuforums.org/showthread.php?t=1474694&page=2 someone says they cured it with a bios update. Could it be a Dell bios bug? I can't get a bios update into my machine. I get RBU Bios Update not supported on this system Hope someone can track this down and fix it permanently. -- [lucid] Keyboard and mouse freeze after grub, usb and PS/2 keyboard not working in X (after upgrade? bad-upgrade to lucid) https://bugs.launchpad.net/bugs/555169 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs