[Nouveau] [Bug 92386] New: Integrated sensor on nv43 doesn't work (wrong vbios parsing?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92386

            Bug ID: 92386
           Summary: Integrated sensor on nv43 doesn't work (wrong vbios
                    parsing?)
           Product: xorg
           Version: git
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: randrik at mail.ru
        QA Contact: xorg-team at lists.x.org

Created attachment 118799
  --> https://bugs.freedesktop.org/attachment.cgi?id=118799&action=edit
hack for recognizing sensor on nv43

Hello, this is me again with my useful nv43.

As far as I can see nvidia binary driver can use integrated sensor on my card,
while nouveau can't. After some digging I found problem - nouveau can't find
some calibration coefficients in vbios. May be they missed completely, or bios
slightly misparsed. I'll attach again my vbios, and patch I made after looking
at nvclock sources [1]. Patch allow sensor to work, and reported temperature
roughly correspond to what I saw with binary driver (looking at raw output I
see nouveau still hotter than nvidia, but I can ignore this for now).

Not sure if such hack (?) should go into nouveau, or I (someone) better to find
if values really missed from vbios first.

Command for getting raw sensor value:
envytools/nva/nvapeek 0x15b4

[1] - http://www.linuxhardware.org/nvclock/

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/nouveau/attachments/20151010/18f05935/attachment.html>