Hi all,
I'm having a hard time connecting an external monitor to my MacBook. I'm using a mini-display to VGA adapter from Apple. It works fine under OS X.
When I boot up linux with the adapter plugged in, the image is cloned on my external monitor until the boot-up sequence reaches the log-in screen, at which point the external monitor doesn't receive anymore data.
Here are some (maybe) relevant info
Graphic Card
Code:
sudo lspci -vnn | grep VGA -A 10
00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:162b] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Apple Inc. Device [106b:013f]
Flags: bus master, fast devsel, latency 0, IRQ 57
Memory at c0000000 (64-bit, non-prefetchable) [size=16M]
Memory at b0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 3000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
xrandr ouput
Code:
xrandr
Screen 0: minimum 320 x 200, current 2560 x 1600, maximum 32767 x 32767
eDP1 connected primary 2560x1600+0+0 (normal left inverted right x axis y axis) 286mm x 179mm
2560x1600 60.0*+
2048x1536 60.0
1920x1440 60.0
1856x1392 60.0
1792x1344 60.0
1920x1200 60.0
1920x1080 59.9
1600x1200 60.0
1680x1050 60.0 59.9
1600x1024 60.2
1400x1050 60.0
1280x1024 60.0
1440x900 59.9
1280x960 60.0
1360x768 59.8 60.0
1152x864 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
848x480 (0xe3) 33.8MHz
h: width 848 start 864 end 976 total 1088 skew 0 clock 31.0KHz
v: height 480 start 486 end 494 total 517 clock 60.0Hz
The "VIRTUAL1" display doesn't appear if the VGA cable is not plugged in at boot-up.
If I go to "system settings -> display", the system doesn't detect any external monitor.
Not sure it's relevant but my kernel is 4.2.0-040200.
Any help would be greatly appreciated !
Update #1 : I've tried with a different Mini-DP to VGA adaptater (I think it's brand-free but maybe it's a dell one) and it works fine under Linux Mint with Cinnamon.
Update #2 : It works under Ubuntu (14.04 64bits live iso with kernel 3.19)
Update #3 : It works under Mint 17.3 (live iso with kernel 3.19). But this kernel doesn't recognize the touchpad. I updated to kernel 4.3.0-040300-generic and will test the VGA output when I get a chance.
