<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [HSW] i915 only uses 165MHz for HDMI port" href="https://bugs.freedesktop.org/show_bug.cgi?id=98491#c16">Comment # 16</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [HSW] i915 only uses 165MHz for HDMI port" href="https://bugs.freedesktop.org/show_bug.cgi?id=98491">bug 98491</a> from <a class="email" href="mailto:karolherbst@gmail.com" title="Karol Herbst <karolherbst@gmail.com>"> Karol Herbst</a> <pre>(In reply to Jani Nikula from <a href="show_bug.cgi?id=98491#c15">comment #15</a>) > The original problem is that we detect your adapter as type 1 DP dual mode > adapter, which are notoriously bad about reporting their max clock. Trying > to read it from the adapter would result in more failures and black screens > than what it would solve. Thus we limit to 165 MHz on type 1 adapters. > > Bit 11 of the VBT device class does seem to indicate HDMI rather than DVI > output, but I am really not sure if that can be universally trusted. > Something to think about though. > > Have you tried kernel v4.10 or later? It does have some fixes for certain > types of adapters. not yet, will do when I can access the display again, which is at eastern the latest.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>