[Lazarus] Unable to debug GUI

[Mark Morgan Lloyd]

Michael Van Canneyt wrote:
> Hi,
> 
> I have a machine on which I'm completely unable to debug GUI programs.
> The machine runs Ubunutu 12.04 LTS.
> If I try to debug, the whole system (at least X11, later the complete 
> system) hangs as soon as there is a breakpoint in a GUI event handler.
> 
> It doesn't matter whether I do the debugging in Lazarus or in GDB directly.
> 
> The same program, the same breakpoint on another machine, same OS, works 
> just fine.
> 
> The sole difference between the 2 machines is the graphics display: An 
> NVidea card on the machine that is OK,
> An on-board Intel chip on the machine that does not work.
> 
> So I'm inclined to suspect a buggy intel graphics driver.
> 
> Has anyone experienced such a situation? If so, I'd appreciate any hints 
> you may have.

I'm reminded of the Win-32 problems caused by HP printer drivers which 
failed to preserve the state of an FP control register.

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]