<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - DisplayPort Cant's set 60hz refresh rate" href="https://bugs.freedesktop.org/show_bug.cgi?id=89998#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - DisplayPort Cant's set 60hz refresh rate" href="https://bugs.freedesktop.org/show_bug.cgi?id=89998">bug 89998</a> from <a class="email" href="mailto:tmadeira@gmail.com" title="Tiago Madeira <tmadeira@gmail.com>"> Tiago Madeira</a> <pre>@Marat, have you managed to solve this problem? I'm having a similar issue with a Lenovo ThinkPad X240 (Intel HD Graphics 4400) connected via DisplayPort to a Dell P2415Q monitor. The 3840x2160 30MHz and 35MHz modes work fine, but 60MHz gives a blank screen (so it's a little bit different than yours) and dmesg reports: [ 3235.577003] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B [ 3235.577018] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun Running Kernel 4.0.4-2-ARCH #1 x86_64 (Arch Linux), but can try some version from the Intel branch if that helps.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>