<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_CLOSED bz_closed" title="CLOSED FIXED - Native screen resolution not working correctly over HDMI LSPCON (i915)" href="https://bugs.freedesktop.org/show_bug.cgi?id=107503#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_CLOSED bz_closed" title="CLOSED FIXED - Native screen resolution not working correctly over HDMI LSPCON (i915)" href="https://bugs.freedesktop.org/show_bug.cgi?id=107503">bug 107503</a> from <a class="email" href="mailto:nicholas.stommel@gmail.com" title="Nicholas Stommel <nicholas.stommel@gmail.com>"> Nicholas Stommel</a> <pre>Created <a href="attachment.cgi?id=141030" name="attach_141030" title="dmesg-drm-tip">attachment 141030</a> <a href="attachment.cgi?id=141030&action=edit" title="dmesg-drm-tip">[details]</a> dmesg-drm-tip Well, it seems I spoke too soon. This issue is *very* much still present on drm-tip, but for some odd reason I could not reproduce it with drm.debug=0x1e. Fredrik from <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1570392">https://bugzilla.redhat.com/show_bug.cgi?id=1570392</a> was also unable to reproduce the bug using the "drm.debug=0x1e" kernel parameter. Without using the debugging parameter, the incorrect native resolution bug most certainly happens. -- Occurrence: Happens roughly over a third of the time, resolution is incorrect on boot. -- Chipset: Intel® Core™ i7-7700T CPU using Intel® HD Graphics 630 (Kaby Lake GT2) -- System architecture: x86_64 -- Kernel version (drm-tip) 4.18.0-994-generic -- Linux distribution: Ubuntu 18.04.1 LTS (also confirmed on Fedora 28, appears distro-independent) -- Machine: HP Elitedesk 800 G3 DM 35W -- Display connector: LSPCON HDMI I have attached the dmesg from boot without the drm.debug=0x1e kernel parameter, I will keep trying to see if I can replicate the bug with this parameter to get the full debugging dmesg. Here you can clearly see in the dmesg sans debugging parameter the lines: [drm:lspcon_wait_mode [i915]] *ERROR* LSPCON mode hasn't settled [drm:intel_dp_get_link_train_fallback_values [i915]] *ERROR* Link Training Unsuccessful</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>