Binary package hint: gwibber
When I scroll in gwibber i can see people scrolling by but there's a distinct flicker. It looks like gwibber is rendering the first few items in the timeline, then the ones at the position of the scroll bar. Continuing to scroll causes the same effect over and over.
1. Scroll wheel down
2. show uppermost tweets
3. (very short delay)
4. show current tweets
5. Goto 1.
I have attached a video. It's not easy to see but it's infuriating when you're scrolling, because it's impossible to read anything as it flickers so much.
Watch the video and observe the most recent tweet in the timeline is one of dick_turpin and his avatar is a distinctive A with a Union Flag. Note how when I scroll it keeps appearing at the top. His is a good example because (at the time of writing) he tweet/dented 3 minutes ago (in the video), and then not again previously for 23 hours, so it's not like he just appears a lot in the timeline.
DistroRelease: Ubuntu 11.04
Package: gwibber 2.91.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic x86_64
Date: Tue Jan 25 09:23:28 2011
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)