Comment 60 for bug 619663

Well personally I've found a fix for this issue, ditched Netbook Remix theme and just did a clean install of Ubuntu Desktop.

From my experience, as I remember having the narrow display on second monitor with Netbook Remix and saw it again after reinstalling Desktop, I think default installs of both have issues with intel chips and dual monitor solutions. While the libdrm fix works for the Desktop environment under compiz, my guess is that under mutter which comes bundled with the Netbook Remix edition (for which compiz doesn't work btw) there is the initial bug which is followed by flickering if this fix is applied for any max resolution >2048.

My temporary fix at first was to swivel my 24" 90 degrees as this allowed the full 1900x1200 and then I just reduced my laptop to 800x600 (total of 2000 wide) however on top of that, either mutter or the netbook remix theme itself was still a bit slow so I decided to revert back to a standard Ubuntu desktop install.

If you are having the flickering screen issue on Netbook Remix it may be worth sticking to Ubuntu desktop for now and waiting for 11.10 which it seems is the target for porting the netbook remix theme to compiz.