<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [IT6506 Display Receiver] DP hotplug fails (display and audio) with i915/kernel 3.11.1" href="https://bugs.freedesktop.org/show_bug.cgi?id=70301#c16">Comment # 16</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [IT6506 Display Receiver] DP hotplug fails (display and audio) with i915/kernel 3.11.1" href="https://bugs.freedesktop.org/show_bug.cgi?id=70301">bug 70301</a> from <a class="email" href="mailto:ken.lin@advantech.com.tw" title="Ken Lin <ken.lin@advantech.com.tw>"> Ken Lin</a> <pre>(In reply to <a href="show_bug.cgi?id=70301#c14">comment #14</a>) > (In reply to <a href="show_bug.cgi?id=70301#c13">comment #13</a>) > > (In reply to <a href="show_bug.cgi?id=70301#c12">comment #12</a>) > > > (In reply to <a href="show_bug.cgi?id=70301#c10">comment #10</a>) > > > > (In reply to <a href="show_bug.cgi?id=70301#c8">comment #8</a>) > > > > > Please try v3.12-rc4 which should have > > > > > > > > > > commit bc86625a4ff7574d4d4dba79723457711eb784e0 > > > > > Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> > > > > > Date: Sun Jul 21 16:00:03 2013 +0100 > > > > > > > > > > drm/i915: Retry DP aux_ch communications with a different clock after > > > > > failur > > > > > > > > > > which changes the divider and adds a retry with another divider. > > > > > > > > 1. The DP display issue(which may have to do with aux timeout) was gone with > > > > commit bc86625a4ff7574d4d4dba79723457711eb784e0 (please see the kernel log > > > > that I attached to this thread). > > > > > > > > 2. The DP display issue still exists in the commit prior to commit > > > > bc86625a4ff7574d4d4dba79723457711eb784e0. > > > > > > Daniel, we need to consider backporting Chris' fix to stable kernels. > > > > > > > 3. The DP audio issue exists in commit > > > > bc86625a4ff7574d4d4dba79723457711eb784e0 (no card codec interface was found > > > > in /proc/asound/) > > > > > > From the logs: > > > > > > [ 8.878426] ALSA sound/pci/hda/hda_intel.c:3807 Haswell must build in > > > CONFIG_SND_HDA_I915 > > > [ 8.878428] ALSA sound/pci/hda/hda_intel.c:3836 Error request power-well > > > from i915 > > > > > > Do you have CONFIG_SND_HDA_I915=y instead of =m? > > > > > > > => Sorry, tt might be my mistake to use the incorrect kernel configuration. > > I will update it later. > > > > > > > Also, I'm confused by your dmesg in <a href="show_bug.cgi?id=70301#c9">comment #9</a> having "Linux version > > > 3.11.0-rc2+" and the line numbers above match that kernel version. Were you > > > running some frankenstein combination of 3.11-rc2 and 3.12-rc4 or what? > > > > => I used git reset --hard bc86625a4ff7574d4d4dba79723457711eb784e0 (VERSION > > = 3, PATCHLEVEL = 11, SUBLEVEL = 0 EXTRAVERSION = -rc2 in Makefile) > > That doesn't do what you think it does. Use git checkout. 1. The kernel version would be 3.11.0-rc2 (referring to VERSION =3, PATCHLEVEL = 11 SUBLEVEL = 0, EXTRAVERSION = -rc2 in Makefile) when I used git git checkout bc86625a4ff7574d4d4dba79723457711eb784e0 2. The DP display/audio functions are working with this commit bc86625a4ff7574d4d4dba79723457711eb784e0 (please check the <a href="attachment.cgi?id=87638" name="attach_87638" title="kernel log with drm_debug info using checkout bc86625a4ff7574d4d4dba79723457711eb784e0">attachment 87638</a> <a href="attachment.cgi?id=87638&action=edit" title="kernel log with drm_debug info using checkout bc86625a4ff7574d4d4dba79723457711eb784e0">[details]</a> for the kernel log info; the audio issue was gone if I used the correct kernel config)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>