My main desktop died recently, so my laptop running Slackware 64 14.0 multilib is now my only option to work on. I'm trying to setup a pseudo-docking station at my desk, and everything is working except hooking it up to my 27" LED monitor.
This is my first experience with multi-monitor support in Linux, so I started by running xrandr and get the following output:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 382mm x 215mm
1920x1080 60.0*+ 40.0
800x600 60.3 56.2
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
It seems that when I plug in the monitor via HDMI, it just doesn't see it there at all. When I first plug it in, I see the power light change colors on the monitor, so there's some kind of activity there. I also booted over to my Windows partition just for testing, and it works just fine, so that rules out any hardware problems. I have a brand new Monster HDMI cable on it as well.
I tried searching around the forums, and the web at large, but couldn't find anyone describing this issue. Seems like most people can get the display to detect automatically, and all the posts I found about it were dealing with sound and not video.
If anyone could shed some light on this, it would be greatly appreciated!
*EDIT* I forgot to mention one other detail last night. I have also tried the Fn-F1 key combination to switch between displays, but the key doesn't do anything. All my other Fn key combinations are working, and I see the dell_laptop and dell_wmi modules loaded.