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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Hang during boot when DPM is on (R9 270X)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76490#c118">Comment # 118</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Hang during boot when DPM is on (R9 270X)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76490">bug 76490</a>
from <span class="vcard"><a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> <span class="fn">Alex Deucher</span></a>
</span></b>
<pre>(In reply to Daniel Exner from <a href="show_bug.cgi?id=76490#c117">comment #117</a>)
<span class="quote">> (In reply to Alex Deucher from <a href="show_bug.cgi?id=76490#c116">comment #116</a>)
> > Created <span class=""><a href="attachment.cgi?id=126814" name="attach_126814" title="possible fix">attachment 126814</a> <a href="attachment.cgi?id=126814&action=edit" title="possible fix">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=76490&attachment=126814'>[review]</a> [review] [review]
> > possible fix
> >
> > Does this patch help?
>
> I applied the patch on Kernel 4.8.0-rc8-00771-g8ab293e: result is a stable
> system as before, so at least it didn't introduce a regression.
>
> Then I disabled the override for my card below:
>
> diff --git a/drivers/gpu/drm/radeon/si_dpm.c
> b/drivers/gpu/drm/radeon/si_dpm.c
> index e6abc09..bcaa675 100644
> --- a/drivers/gpu/drm/radeon/si_dpm.c
> +++ b/drivers/gpu/drm/radeon/si_dpm.c
> @@ -2924,7 +2924,6 @@ struct si_dpm_quirk {
> /* cards with dpm stability problems */
> static struct si_dpm_quirk si_dpm_quirk_list[] = {
> /* PITCAIRN - <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Hang during boot when DPM is on (R9 270X)"
href="show_bug.cgi?id=76490">https://bugs.freedesktop.org/show_bug.cgi?id=76490</a> */
> - { PCI_VENDOR_ID_ATI, 0x6810, 0x1462, 0x3036, 0, 120000 },
> { PCI_VENDOR_ID_ATI, 0x6811, 0x174b, 0xe271, 0, 120000 },
> { PCI_VENDOR_ID_ATI, 0x6811, 0x174b, 0x2015, 0, 120000 },
> { PCI_VENDOR_ID_ATI, 0x6810, 0x174b, 0xe271, 85000, 90000 },
>
> Result is the same as without your patch: black screen and non responsive
> system.</span >
Ok.
<span class="quote">>
> Should I also revert "drm/radeon: load different smc firmware on some SI
> variants"?</span >
No.</pre>
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