Date: Sun, 26 Jan 2014 22:18:00 +0100 From: Cejka Rudolf <cejkar@fit.vutbr.cz> To: freebsd-acpi@freebsd.org Subject: PS/2 Keyboard disappeared after upgrade from 8.2 to 9.2 Message-ID: <20140126211800.GA84919@fit.vutbr.cz>
next in thread | raw e-mail | index | archive | help
Hello, maybe it will be interesting for you. I had a problem with disappeared PS/2 keyboard after upgrade from 8.2 to 9.2. It is on old Intel ECG3510M motherboard, but it is possible that the same ACPI bug could be on some other motherboards and maybe there would be beneficial to implement a workaround, atleast because 8.2 had no problem with this DSDT. Full DSDT dump is downloadable from ftp://ftp.FreeBSD.cz/pub/FreeBSD-local/acpi-ecg3510m/acpi-ecg3510m.asl If you look inside, there is PS2M before PS2K, and PS2M unconditionally allocates ports 0x60-0x64 and stoles them from subsequent PS2K, even if PS2K is enabled, so PS2K fails to detect/activate. Result on 8.2, which is resistant to this DSDT bug (is it really bug?): psmcpnp0 pnpinfo _HID=PNP0F03 _UID=0 at handle=\_SB_.PCI0.LPC_.PS2M Interrupt request lines: 12 atkbdc0 pnpinfo _HID=PNP0303 _UID=0 at handle=\_SB_.PCI0.LPC_.PS2K I/O ports: 0x60 0x64 atkbd0 Interrupt request lines: 1 psm0 Interrupt request lines: 12 Result on 9.2: psmcpnp0 pnpinfo _HID=PNP0F03 _UID=0 at handle=\_SB_.PCI0.LPC_.PS2M I/O ports: 0x60 0x64 unknown pnpinfo _HID=PNP0303 _UID=0 at handle=\_SB_.PCI0.LPC_.PS2K I tried to swap the PS2M and PS2K definitions, so that PS2K is before PS2M, and it solves the problem under 9.2 and it detects PS/2 Keyboard again. Best regards. -- Rudolf Cejka <cejkar at fit.vutbr.cz> http://www.fit.vutbr.cz/~cejkar Brno University of Technology, Faculty of Information Technology Bozetechova 2, 612 66 Brno, Czech Republic
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20140126211800.GA84919>