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Message #118597
[Bug 747205] Re: [arrandale] Black screen on all outputs when external VGA is connected
Per Matt's request in comment #34 I have attached the before and after
outputs from intel_reg_dumper.
The process I followed:
Boot system to login prompt
ctrl+alt+1 to prompt, login, execute 'sudo intel_reg_dumper > intel-regs-before.txt' and exit
ctrl+alt+7 to login prompt
login, laptop screen goes black, monitor begins flashing colors. Login sound is played.
ctrl+alt+1 to prompt, login, execute 'sudo intel_reg_dumper > intel-regs-after.txt'
reboot
Please advise if there are any additional diagnostic steps I can run.
Thanks.
** Attachment added: "Before"
https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/747205/+attachment/2027193/+files/intel-regs-before.txt
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https://bugs.launchpad.net/bugs/747205
Title:
[arrandale] Black screen on all outputs when external VGA is connected
References