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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - eDP -> Dual Channel LVDS bridge unable to accept any modelines: Corrupt display!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112008#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - eDP -> Dual Channel LVDS bridge unable to accept any modelines: Corrupt display!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112008">bug 112008</a>
from <span class="vcard"><a class="email" href="mailto:Babblebones@gmail.com" title="Babblebones@gmail.com">Babblebones@gmail.com</a>
</span></b>
<pre>This may be useful to you!
[ 4.603742] [drm:amdgpu_dm_initialize_drm_device [amdgpu]]
amdgpu_dm_connector_init()
[ 4.604326] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0000, SideBand
Msg: Nop, Op res: OK
[ 4.604327] Body: 11
[ 4.604699] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0000, SideBand
Msg: Nop, Op res: OK
[ 4.604699] Body: 11 06 84 00 01 00 00 00 00 00 00 00 00 00 00 00
[ 4.604932] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0000, SideBand
Msg: Nop, Op res: OK
[ 4.604933] Body: 11
[ 4.605160] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0200, SideBand
Msg: Nop, Op res: OK
[ 4.605161] Body: 41
[ 4.605393] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0000, SideBand
Msg: Nop, Op res: OK
[ 4.605394] Body: 11
[ 4.605700] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0400, SideBand
Msg: Nop, Op res: OK
[ 4.605700] Body: 00 00 00 00 00 00 00 00 00
[ 4.605933] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0000, SideBand
Msg: Nop, Op res: OK
[ 4.605933] Body: 11
[ 4.606178] [drm:dm_dp_aux_transfer [amdgpu]] Op: Read, addr: 0409, SideBand
Msg: Nop, Op res: OK
[ 4.606178] Body: 00 00 00
[ 4.606218] [drm:dc_conn_log_hex_linux [amdgpu]] 11
[ 4.606257] [drm:dc_conn_log_hex_linux [amdgpu]] 06
[ 4.606296] [drm:dc_conn_log_hex_linux [amdgpu]] 84
[ 4.606334] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606372] [drm:dc_conn_log_hex_linux [amdgpu]] 01
[ 4.606410] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606447] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606485] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606522] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606560] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606597] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606635] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606672] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606710] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606748] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606786] [drm:dc_conn_log_hex_linux [amdgpu]] 00
[ 4.606825] [drm:retrieve_link_cap [amdgpu]] Rx Caps:
[ 4.607189] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.607192] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.607559] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.607561] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.607925] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.607926] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.608290] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.608291] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.608661] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.608662] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.609021] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.609022] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.609381] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.609383] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.609741] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.609742] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.610189] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.610190] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.610549] [drm:dm_dp_aux_transfer [amdgpu]] Op: Write, addr: 0050,
SideBand Msg: Nop, Op res: OK
[ 4.610550] [drm:drm_dp_i2c_do_msg] I2C nack (result=0, size=0
[ 4.610587] [drm:dc_link_detect [amdgpu]] *ERROR* No EDID read.
Kernel 4.19 Gentoo stock
Any idea why dc_conn_log_hex_linux is so short?
Other people's connectors seem to get lots of hex data over the debug drop here
mine is nearly completely empty!</pre>
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