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Description of problem: Normally i'm working on my Thinkpad R61i 8943-DKG with additional 24" LCD screen connected to VGA1. I've unplugged it, moved to my entertaiment room and connected to my 42" Sony LCD TV. Sadly was that xrandr wasn't able to change video mode of VGA port. Even killing X.org wouldn't help (I was left on tty console with syslog messages). Only reboot helped. Version-Release number of selected component (if applicable): xorg-x11-drv-intel-2.16.0-2.fc16.x86_64 kernel-3.1.0-7.fc16.x86_64 How reproducible: So far, always Steps to Reproduce: 1. Disconnect your VGA screen (1600x1200) 2. Connect TV to VGA port (1366x768) 3. try to use xrandr --output VGA1 --right-of LVDS1 --mode 1366x768 Actual results: Video mode is not changed, VGA port not activated. Expected results: VGA port enabled, video mode enabled Additional info:
What GPU is this with? lspci -nn -s 0:2 Do you get any error messages from xrandr when this happens? If you boot with drm.debug=0x4 and try this, do you get any error messages in dmesg?
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) 00:02.1 Display controller [0380]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (secondary) [8086:2a03] (rev 0c) I get error messages from xrandr: Can't set video mode for CRTC65. Some lines are shown on syslog tty (CTRL+ALT+F1 probably), but I'm now after reboot and I didn't wrote them down to a paper. More info soon.
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