<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#c11">Comment # 11</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:Babblebones@gmail.com" title="Babblebones@gmail.com">Babblebones@gmail.com</a> <pre>Created <a href="attachment.cgi?id=144277" name="attach_144277" title="EDID file">attachment 144277</a> <a href="attachment.cgi?id=144277&action=edit" title="EDID file">[details]</a> EDID file Don't know if this helps but ALL kernels seem affected by not being able to grab EDID on startup but the changes after 4.18 break something further as to make the display unusable by changing the default behavior of the panel's mode without EDID. [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.18.20 root=/dev/sdb2 ro amdgpu.ppfeaturemask=0xffffffff amdgpu.dpm=1 amdgpu.dc=1 amdgpu.gpu_recovery=1 amdgpu.powerplay=1 drm.edid_firmware=eDP-1:edid/edid.bin [ 4.340989] [drm] Got external EDID base block and 0 extensions from "edid/edid.bin" for connector "eDP-1" [ 4.451624] drm_do_probe_ddc_edid+0xb9/0x130 [ 4.451628] ? drm_edid_block_valid+0x180/0x180 [ 4.451629] drm_do_get_edid+0xb1/0x330 [ 4.451631] drm_get_edid+0x61/0x380 [ 4.451671] dm_helpers_read_local_edid+0x4c/0xe0 [amdgpu] [ 4.630956] drm_do_probe_ddc_edid+0xb9/0x130 [ 4.630966] ? drm_edid_block_valid+0x180/0x180 [ 4.630969] drm_do_get_edid+0xb1/0x330 [ 4.630972] drm_get_edid+0x61/0x380 [ 4.631115] dm_helpers_read_local_edid+0x4c/0xe0 [amdgpu] [ 4.801879] drm_do_probe_ddc_edid+0xb9/0x130 [ 4.801889] ? drm_edid_block_valid+0x180/0x180 [ 4.801892] drm_do_get_edid+0xb1/0x330 [ 4.801895] drm_get_edid+0x61/0x380 [ 4.802006] dm_helpers_read_local_edid+0x4c/0xe0 [amdgpu] [ 4.972889] drm_do_probe_ddc_edid+0xb9/0x130 [ 4.972900] ? drm_edid_block_valid+0x180/0x180 [ 4.972903] drm_do_get_edid+0xb1/0x330 [ 4.972907] drm_get_edid+0x61/0x380 [ 4.973028] dm_helpers_read_local_edid+0x4c/0xe0 [amdgpu] [ 5.145825] drm_do_probe_ddc_edid+0xb9/0x130 [ 5.145835] ? drm_edid_block_valid+0x180/0x180 [ 5.145837] drm_do_get_edid+0xb1/0x330 [ 5.145841] drm_get_edid+0x61/0x380 [ 5.145942] dm_helpers_read_local_edid+0x4c/0xe0 [amdgpu] [ 5.170556] [drm:dc_link_detect [amdgpu]] *ERROR* No EDID read. Is what happens when I set the edid manually from the kernel commandline. Setting it manually freaks out newer kernels and my display won't modeset properly making it a mess but on 4.18 it seemed to drop this. Any debug patches I can run to help you guys figure it out? I have included my EDID file if you want to run it through anything to see what breaks.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>