Still relevant in 24.04
missing hdmi audio was solved by
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_iommu=on,igfx_off"
system is x79-UD3 E5-4657L nvidia 2070 samsung tv
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https://bugs
more from dmesg about amdgpu
[1.199336] amdgpu :02:00.0: Invalid PCI ROM header signature: expecting
0xaa55, got 0x
and there is at least one talk already open elsewhere
https://bugs.freedesktop.org/show_bug.cgi?id=98798
** Bug watch added: freedesktop.org Bugzilla #98798
https:/
from dmesg
[ 193.460043] [drm:atom_op_jump [amdgpu]] *ERROR* atombios stuck in loop for
more than 5secs aborting
[ 193.460072] [drm:amdgpu_atom_execute_table_locked [amdgpu]] *ERROR* atombios
stuck executing D672 (len 824, WS 0, PS 0) @ 0xD7C1
[ 193.460086] [drm:amdgpu_atom_execute_table_lock
when failing xrandr
Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 8192 x 8192
XWAYLAND0 connected 3840x2160+0+0 (normal left inverted right x axis y axis)
950mm x 540mm
3840x2160 29.98*+
when working xrandr
Screen 0: minimum 320 x 200, current 5760 x 2160, maximum 16384 x 16
found a pattern,
the display is working if
the computer is turned on while the tv is off AND was turned off while was
select another hdmi port
in this condition when turning on the tv is misdetected as 85" but with
right 3840x2160 30Hz
any other attempt detected 43" and then nothing works to g
The tv is a 43" 3840x2160 samsung an by chance was misdetected as a 83" one
In this event it was working at native resolution and had the login visible.
I tried but I'm unable to make this happen at will.
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Public bug reported:
It was fine with 17.04 and all latest updates but after upgrade to 17.10
there is an issue.
At boot the UHD tv on hdmi is complaining that 720x480 60Hz is
unsupported and screen is displaying nothing.
With another monitor connected on display port looks like the higher
resol
Same issue with packard bell "easynote sj51", tested with ubuntu 8 daily live
04-12.
Is there anything specific test/probe/tool to use to provide more info about
nvidia 7000m?
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LCD panel is not recognized on Asus F5N laptop
https://bugs.launchpad.net/bugs/200229
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