Hello,
My laptop is a macbook pro 2011. This macbook has a dual GPU: a AMD Radeon HD 6750M and a Intel HD Graphics 3000.
I have downloaded the Opensuse 13.2 RC1 KDE live iso and created a usb pen drive to boot it.
When I first booted with the live usb I was amazed because everything worked out of the box. So, in a rush I installed it. lol!
After installation I booted the installed OS. This time the external monitor connected via display port didn’t work.
Under “Configure Desktop”->“Display and Monitor” I can see that the external monitor is detected and it’s set to the correct resolution.
Messing around with the monitor settings doesn’t do anything.
Booting again the OS from the live usb, the external monitor is working again.
Going to “Configure Desktop”->“Display and Monitor” shows that I have 3 connected monitors (I only have 2 :).
Here’s the output of xrandr:
xrandr -q
Screen 0: minimum 320 x 200, current 5520 x 1440, maximum 16384 x 16384
LVDS-1 connected 1680x1050+2560+195 (normal left inverted right x axis y axis) 331mm x 207mm
1680x1050 59.88*+
1400x1050 59.98
1280x1024 59.89
1440x900 59.89
1280x960 59.94
1280x854 59.89
1280x800 59.81
1280x720 59.86
1152x768 59.78
1024x768 59.92
800x600 59.86
848x480 59.66
720x480 59.71
640x480 59.38
DisplayPort-1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
1920x1200 59.88
1920x1080 60.00 60.00 50.00 59.94 24.00 23.98
1920x1080i 60.00 50.00 59.94
1600x1200 60.00
1680x1050 59.95
1280x1024 75.02 60.02
1280x800 59.81
1152x864 75.00
1280x720 60.00 50.00 59.94
1440x576i 50.00
1024x768 75.08 60.00
1440x480i 60.00 59.94
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
DisplayPort-3 disconnected (normal left inverted right x axis y axis)
LVDS1 connected 1280x800+4240+445 (normal left inverted right x axis y axis) 0mm x 0mm
1280x800 60.22*+
1024x768 60.00
800x600 60.32 56.25
640x480 59.94
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
1024x768 (0xb7) 65.000MHz
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0xbb) 40.000MHz
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
640x480 (0xc1) 25.175MHz
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
If I disable either one of the LVDS (the correct one is LVDS-1) the laptop monitor is shutdown.
In the installed OS only 2 monitors are detected but as i’ve said the external one doesn’t work.
In the logs there’s several of messages like this:
too many voltage retries, give up failed to train DP, aborting
So can someone help me configure my installed OS to behave like the live usb, i.e, having the external monitor working?
Thanks and kind regards,
Pedro Saraiva