On Sat, 27 Feb 2010 14:17:14 +0200 Pekka Enberg <penberg@xxxxxxxxxxxxxx> wrote: > On Sat, Feb 27, 2010 at 2:15 PM, Pekka Enberg > <penberg@xxxxxxxxxxxxxx> wrote: > > On Sat, Feb 27, 2010 at 1:00 PM, Markus Rechberger > > <mrechberger@xxxxxxxxx> wrote: > >>> Linus, I know you didn't want to do a kzalloc, but it looks like > >>> this is the easiest/simplest thing to do, unless you can think of > >>> something else? > >> > >> do you have any idea what to cherrypick in order to get rid of that > >> flickering with the intel GM45? > >> The flickering itself occures randomly, it was not there with the > >> original Ubuntu kernel (2.6.31 with alot patches) > >> This is pretty much a standard graphicchip nowadays.... > > > > Yeah, same here. I tried to bisect the damn thing but didn't find > > any single commit. I think the problem was introduced in in the DRM > > merge between 2.6.31 and 2.6.32-rc1. Some people suggested > > privately that it might be related to frame buffer compression. > > Unfortunately I wasn't able to revert that particular patch. > > Btw, after I reinstalled Ubuntu 9.10 from scratch for unrelated > reasons, I haven't seen the flicker effect. Dunno if that's just a > coincidence or if userspace has something to do with the bug. Some people reported ACPI related flicker due to lid detection taking a long time and X periodically probing for it. Maybe that's what you were seeing? -- Jesse Barnes, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
