> Date: Wed, 19 May 2010 09:30:22 -0700 > From: "J.C. Roberts" <list-...@designtools.org> > > On Wed, 19 May 2010 09:36:14 +0200 David Coppa <dco...@gmail.com> wrote: > > > > The occasional/intermittent screen corruption bug seems to have > > > > disappeared for me with latest xenocara -current + the > > > > "experimental" Mesa 7.8 update. > > > > > > That's good news! I don't have the "experimental" mesa patch, but > > > if you want me to test it, mail it to me off list. > > > > I've spoken too soon! > > The problem now has changed, but it's still here. > > > > Now the screen goes blank but not turn off (a black > > screen): no crashes or artifacts, but it's totally > > unresponsive and I need to switch to text console and > > kill X. > > > > The sad is that this error is unrecoverable: when I try > > to restart X, X starts with a blank screen again, with > > the message: > > > > When testing code controlling video/graphics hardware, you should > power off the system after hitting an error. The reason is simple; the > hardware/memory is no longer in a know state, so you no longer know > what you are testing, and hence, you may not be able to isolate > *repeatable* errors.
Sorry, J.C. but you're wrong here. While it is possible to get hardware in a state that requires a full powercycle to get into a sane state, the intel video stuff will work fine again after a reboot.