<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT][BYT,BSW] WARN_ON(dev_priv->uncore.funcs.mmio_readl(dev_priv, (((const i915_reg_t){ .reg = (0x180000 + 0x650C) })), true) & (1 << 27))" href="https://bugs.freedesktop.org/show_bug.cgi?id=101517#c7">Comment # 7</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT][BYT,BSW] WARN_ON(dev_priv->uncore.funcs.mmio_readl(dev_priv, (((const i915_reg_t){ .reg = (0x180000 + 0x650C) })), true) & (1 << 27))" href="https://bugs.freedesktop.org/show_bug.cgi?id=101517">bug 101517</a> from <a class="email" href="mailto:krisman@collabora.co.uk" title="krisman@collabora.co.uk">krisman@collabora.co.uk</a> <pre>(In reply to Ville Syrjala from <a href="show_bug.cgi?id=101517#c4">comment #4</a>) > The simple solution would be to just revert commit 63ff30442519 ("drm/i915: > Nuke the VLV/CHV PFI programming power domain workaround") > > I failed to consider that the firmware likes to reset the cdclk to some > non-minimum frequency during suspend, and then we apparently perform a > modeset without actually modesetting anything and thus only end up > reprogramming the cdclk without the power well being enabled. trybot confirmed it addresses the issue: <a href="https://intel-gfx-ci.01.org/CI/Trybot_973/">https://intel-gfx-ci.01.org/CI/Trybot_973/</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>