[Intel-gfx] Monitor not automatically managed by X after hotplugged
Hugo.Jacques at verint.com
Thu Sep 30 07:37:23 PDT 2010
I am running an Intel 945G-based system (with only a VGA (aka CRT) output) with a 18.104.22.168 kernel, Xserver 1.9.0, xf86-video-intel 2.12.901 on a homegrown distro.
1. Boot my system with the VGA cable disconnected 2. Wait for X to start 3. Plug the VGA monitor into the system
Then, VGA monitor gets the console output, not X's.
Even if I do "xrandr --output VGA1 --mode 640x480" between steps 2 and 3, this changes nothing.
But after step 3 if I do "xrandr --output VGA1 --mode auto", then X manages the video output as I expected.
This kind of thing (forcing video output to be driven to a known mode without any monitor plugged) used to work with 22.214.171.124 kernel/xf86-video-intel 2.7.0/UMS.
I get a same behavior on Ubuntu 10.10, Sept 21st snapshot, which has similar components. If the VGA monitor is not plugged in when system boots: no luck, it won't fly.
Is this "as designed" (i.e. userspace app like udev should take care of handling hot-plugging by calling xrandr) or a bug?
Verint Systems Inc.
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