On 15/11/12 13:43, Bev Nicolson wrote:
By the way, I've just had a shufti through Synaptic and xorg is still included, so, given that, would configuring the graphics card be a sensible option? (Choosing i915 as the driver, since it is.) The instructions I've got are for Breezy Badger so I guess some things have changed a bit since then.
Hi, I've taken the liberty of posting the video of the symptoms on twitvid - here: http://twitvid.com/CM1JE
Bev if this is not OK with you, please let me know and I'll take it down ASAP, and I'll apologise!
To me this looks like the graphics card is trying to drive the monitor at a higher frequency than the monitor can handle, though I guess it could also be caused by a faulty cable, or dodgy connection - e.g. bent pin or vga cable not all the way into the socket.
What do other people think?
I didn't think that changing the XOrg config would do anything, but on further reading it seems it might. This thread https://answers.launchpad.net/ubuntu/+source/xorg/+question/193748 says "If the GUI system-settings -> display doesn't work you need xrandr to get the values and adjust xorg.conf. https://wiki.ubuntu.com/X/Config/Resolution#Adding_undetected_resolutions https://wiki.ubuntu.com/X/Config/Resolution#Adding_undetected_resolutions " So I suggest using the Display app to force the resolution AND FREQUENCY to the settings you want. If that doesn't work, try xrandr and altering xorg config files.
Hope that helps.
Steve