Linux HDMI resume w/strange purple vertical line

HDMI video and audio works perfectly on my DELL XPS M1330, but any time I resume from suspend I get strange purple colour vertical line on the right side of my LCD TV screen. I don't have this issue from boot only when resume.


more pictures: http://imgur.com/a/YTExz#0

Has anybody have the similar issue?

* DELL XPS M1330
* XBMCbuntu Eden 11.0 on Ubuntu 11.10 kernel 3.0.0-16-generic

Update
********
Workaround: Play a video and the line will disappear.

Log in via ssh and restart x.

sudo service lightdm restart

should do it. If that fixes it, create a hook in /etc/pm/sleep.d/ to restart x on resume.

(2012-04-21 08:21)teeedubb Wrote:  Log in via ssh and restart x.

sudo service lightdm restart

should do it. If that fixes it, create a hook in /etc/pm/sleep.d/ to restart x on resume.

Thanks teeedubb, it does restart the xwin but still purple line is there!

I just found workaround, any time the purple line appears after resume, once I play any video it will disappear.
Would be very interesting to know what cases this line?

Could it be the left side of the default background from the login screen showing through? That would mean that XBMC is starting back in windowed mode or is otherwise configured incorrectly for the screen.

Settings > System > Video Output should be set to "Full Screen" and a resolution of 1920x1080 for 1080p TVs. If you messed with the video calibration at all, go back and reset it to the defaults. If your TV has overscan on (the reason most people go into video calibration), try really hard to turn that off on the TV before compensating in software (Look for settings like "HD Size", "Native size/resolution"... etc.).

No sure this is a login bg. Looks more like a video output issue that cannot render/refresh whole screen and that's why when I play a movie, screen gets refresh and line disappears (IMO).