Comment 2 for bug 804373

No problem:

1) Ubuntu Natty on a Lenovo ThinkPad T400

2) ATI Mobility Radeon HD 3400:
andy@duality:/tmp$ lspci | grep -i radeon
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3400 Series
I'm running with the generic vesa driver in X.org: the proprietary driver didn't work (X failed to start) when I tried it.

3) Try this one -- it's a fairly simple PDF graph drawn via LaTeX: http://users.hepforge.org/~buckley/d02-x03-y01.pdf
andy@duality:/tmp$ impressive d02-x03-y01.pdf
Welcome to Impressive version 0.10.3-WIP
Detected screen size: 1440x900 pixels
X Error of failed request: BadLength (poly request too large or internal Xlib length error)
  Major opcode of failed request: 65 (X_PolyLine)
  Serial number of failed request: 13
  Current serial number in output stream: 14

Thanks!
Andy