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Hi all,
After upgrading from 12.10 to 13.04 on a system with two monitors, the
second one became very dim. In fact, it's so dim that I thought it was
blank. Both monitors are fine when booting up and they both show the
"Ubuntu" name with 5 circles underneath...but somewhere during this
point, the second screen blanks. By the time the login screen is shown,
the second monitor is already very dim.
Thinking that this might be caused by incompatible configuration files,
I created a new account and logged in with that -- no difference.
Thinking that maybe it's a hardware problem with the monitor, I swapped
the DVI cables and the same monitor remained dim. I then plugged the
monitor into another system and the monitor's fine.
The second screen is fine sometimes (i.e., not always) right after the
screen saver activates. I enter my password to unlock the screen saver
and things are ok for a few seconds and then the second monitor suddenly
dims.
This is the output from lspci:
$ lspci -v | grep -i vga
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Cedar
[Radeon HD 5000/6000/7350 Series] (prog-if 00 [VGA controller])
I'm not sure what steps are required to reproduce this bug since it
always happens to me... I'd be happy to provide more information if I
have an idea what information might be relevant.
Ray
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
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[Dual monitor] One monitor very dim after 13.04 upgrade
https://bugs.launchpad.net/bugs/1172593
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