<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - HP Dreamcolor display *Error* No EDID read" href="https://bugs.freedesktop.org/show_bug.cgi?id=110371#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - HP Dreamcolor display *Error* No EDID read" href="https://bugs.freedesktop.org/show_bug.cgi?id=110371">bug 110371</a> from <a class="email" href="mailto:nicholas.kazlauskas@amd.com" title="Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>"> Nicholas Kazlauskas</a> <pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=110371#c4">comment #4</a>) > (In reply to Nicholas Kazlauskas from <a href="show_bug.cgi?id=110371#c3">comment #3</a>) > > It's hitting the "." as part of the video mode and erroring out because DRM > > doesn't consider it a valid character. > > Or maybe there's two separate issues? Failure to parse the mode name > shouldn't affect whether or not DC picks up EDID, should it? I suppose that doesn't actually influence whether the EDID has been read or is valid. So that's a different bug. The "No EDID read." error comes from the result from drm_get_edid(...) being NULL, however. While we're responsible for the actual transfers to and from the receiver the actual logic is shared there between drivers. (In reply to Babblebones from <a href="show_bug.cgi?id=110371#c2">comment #2</a>) > Created <a href="attachment.cgi?id=143957" name="attach_143957" title="Dmesg output from an affected kernel">attachment 143957</a> <a href="attachment.cgi?id=143957&action=edit" title="Dmesg output from an affected kernel">[details]</a> > Dmesg output from an affected kernel > > Here is the issue, you can see > [ 1.335096] [drm:dc_link_detect [amdgpu]] *ERROR* No EDID read. > > Which is about where the display turns into fruit salad. > Please let me know if I can submit any more debug info that would assist! I > am very much in need of running a newer kernel. Can you post a dmesg log with drm.debug=4 as part of your kernel boot parameters?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>