[Nouveau] [Bug 99913] New: [G96] Reclocking fails on voltage

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99913

            Bug ID: 99913
           Summary: [G96] Reclocking fails on voltage
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: ppaalanen at gmail.com
        QA Contact: xorg-team at lists.x.org

Attempting to set the performance level to 15 on my laptop results in errors.

nouveau 0000:01:00.0: NVIDIA G96 (096500a1)
nouveau 0000:01:00.0: bios: version 62.94.3c.00.15
nouveau 0000:01:00.0: fb: 512 MiB GDDR3

The kernel module has options: config=NvClkMode=15
That leads to errors:

nouveau 0000:01:00.0: clk: failed to raise voltage: -22
...
nouveau 0000:01:00.0: clk: error setting pstate 3: -22

After that the contents of /sys/kernel/debug/dri/0/pstate are:

03: core 169 MHz shader 338 MHz memory 100 MHz
05: core 275 MHz shader 550 MHz memory 300 MHz
07: core 400 MHz shader 800 MHz memory 300 MHz
0f: core 625 MHz shader 1563 MHz memory 800 MHz AC DC *
AC: core 275 MHz shader 550 MHz memory 799 MHz

Kernel log and VBIOS will follow.

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