http://bugzilla.kernel.org/show_bug.cgi?id=7514
------- Additional Comments From [EMAIL PROTECTED] 2006-11-24 13:57 ------- Created an attachment (id=9620) --> (http://bugzilla.kernel.org/attachment.cgi?id=9620&action=view) raw acpidump from henriks nx7400 Well, I haven't yet been able to make a successful acpi dump from WinXP. I got close, but even though I got all things in place, no useful output. Windows is just a frustrating pile of eh, well, frustration... So, on to some easier reverse engineering... :-) What I did instead was to have a look at the BIOS rom images (F.06 with working speedstep and F.07 without) and inside I did indeed find tables that looked like real speedstep ACPI tables even with the newest F.07 ROM. However, the BIOS images are not fit for direct ACPI table extraction... So instead I made an "extended" ACPI dump (attached) of the memory area around where the ACPI tables are in my machine. This dump is a raw binary dump of 64 kbytes. When I ran the normal acpidump the ACPI tables where located around 0x3f7e0000 (see my previous attachment in comment 19) so I created a binary dump from that address and 64 kbytes in size. Now, if you load the attached dump into the ghex2 binary editor (or any other hex editor) you will, if you search for the string SSDT, find what looks like multiple SSDT tables. Some of them seems to contain stuff like _PCT which I understand is vital for speedstep. So maybe the kernel is reading the wrong SSDT table or there are multiple tables? I will continue to investigate, but I found the current results interesting enough to report. ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
