<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [ivb dual-link dvi dongle] doesn't work with common DP dongle" href="https://bugs.freedesktop.org/show_bug.cgi?id=55228#c44">Comment # 44</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [ivb dual-link dvi dongle] doesn't work with common DP dongle" href="https://bugs.freedesktop.org/show_bug.cgi?id=55228">bug 55228</a> from <a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> Ville Syrjala</a> <pre>Created <a href="attachment.cgi?id=113348" name="attach_113348" title="[PATCH] hack: try to set i2c bus speed to 100kbps via dpcd">attachment 113348</a> <a href="attachment.cgi?id=113348&action=edit" title="[PATCH] hack: try to set i2c bus speed to 100kbps via dpcd">[details]</a> <a href='page.cgi?id=splinter.html&bug=55228&attachment=113348'>[review]</a> [PATCH] hack: try to set i2c bus speed to 100kbps via dpcd The log with v4 just shows too many native defers, so could be the i2c transfer is just taking too long. This patch tries to force it to 100kHz even though your dongle doesn't report that it can actually change the speed. I don't really expect this to change anything, but might as well try. I've tested v4 myself and it does what it's supposed to here, nor can I see anything wrong with the code. IIRC v3 also looked OK to me. So the only really viable explanation I can think of is that dongle is just having a bad day.</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> </ul> </body> </html>