<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [GLK] no signal after switch resolution from 1080p@23.98" href="https://bugs.freedesktop.org/show_bug.cgi?id=105887#c47">Comment # 47</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [GLK] no signal after switch resolution from 1080p@23.98" href="https://bugs.freedesktop.org/show_bug.cgi?id=105887">bug 105887</a> from <a class="email" href="mailto:clinton.a.taylor@intel.com" title="Clinton Taylor <clinton.a.taylor@intel.com>"> Clinton Taylor</a> <pre>Notes from debug: Issue appears to occur anytime the display switches from a 74.xxx MHz mode (23.98, 24, 29.97, 30 Hz) to a higher clock frequency (148 Mhz and 296 Mhz at 50, 59.94, and 60 Hz). Long HPD pulse restores output at the selected resolution. PLL programming during failure is correct based on dpll_hw_state in the logs during success and failure. CDCLK remains constant at 316MHz. i915_power_domain_info shows identical "Use counts" during working and non-working cases. Reviewed GLK workaround database for similar issue. Nothing Found.</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 assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>