#7520: USB mouse can't work when IO-APIC is enabled -----------------------------+---------------------------- Reporter: mt | Owner: mmlr Type: bug | Status: assigned Priority: normal | Milestone: R1 Component: System/Kernel | Version: R1/Development Resolution: | Keywords: Blocked By: | Blocking: Has a Patch: 0 | Platform: x86 -----------------------------+---------------------------- Comment (by mt): Replying to [comment:8 mmlr]: > Under Haiku, can you please try plugging in and out the mouse or other devices into the non working ports first. Then enter the kernel debugger (with the kernel_debugger command in Terminal or the Alt-SysRq-D shortcut) and execute the "ints" KDL command. Then exit KDL with the "continue" command, the output of "ints" should now have been written to the syslog. Can you please post such a syslog? Replying to [comment:9 mmlr]: > If you can, please still provide the "ints" KDL output, to verify that my theory is at work at all. Please also try running Haiku in failsafe video mode so the matrox driver isn't used. That should then result in the interrupt not being disabled and USB devices should continue to work. [[BR]] Hi, I will add bellow two outputs. * Boot with mouse plugged to non working port and then plug to working port. then perform KDL "ints" command. * Remove Matrox drivers (because fallsafe video mode was not working), then boot with mouse plugged to non working port. then perform KDL "ints" command. By Removing Matrox drivers, USB mouse & stick works well with non working ports. -- Ticket URL: <http://dev.haiku-os.org/ticket/7520#comment:10> Haiku <http://dev.haiku-os.org> Haiku - the operating system.