[Intel-gfx] Monitor not automatically managed by X after hotplugged

[Jacques, Hugo]

Hi all.

I am running an Intel 945G-based system (with only a VGA (aka CRT) output) with a 2.6.35.5 kernel, Xserver 1.9.0, xf86-video-intel 2.12.901 on a homegrown distro.

If I:

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 2.9.29.6 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?

Thanks.
 
Hugo Jacques
Verint Systems Inc.

This electronic message may contain proprietary and confidential information of Verint Systems Inc., its affiliates and/or subsidiaries.
The information is intended to be for the use of the individual(s) or
entity(ies) named above.  If you are not the intended recipient (or authorized to receive this e-mail for the intended recipient), you may not use, copy, disclose or distribute to anyone this message or any information contained in this message.  If you have received this electronic message in error, please notify us by replying to this e-mail.