Public bug reported:
Sometime in late 13.04 update HDMI desktop mirroring stopped working on my Sony
VAIO laptop.
Using Fn+F7 does not bring up the desktop mirror etc. dialog.
lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Thames [Radeon HD 7550M/7570M/7650M] [1002:6841]
xrandr output:
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 16384 x 16384
LVDS connected 1680x1050+0+0 (normal left inverted right x axis y axis) 0mm x
0mm
1920x1080 60.0 +
1680x1050 60.0*
1400x1050 60.0
1280x1024 59.9
1440x900 59.9
1280x960 59.9
1280x854 59.9
1280x800 59.8
1280x720 59.9
1152x768 59.8
1024x768 59.9
800x600 59.9
848x480 59.7
720x480 59.7
640x480 59.4
HDMI-0 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected (normal left inverted right x axis y axis)
When the HDMI cable is plugged in, it is not detected and thus the
screen mirror dialog is not shown. As a result, cannot project my laptop
to a larger display. This is a regression.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1277777
Title:
HDMI cable not detected in 13.10
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