On Wed, 2010-09-15 at 09:11 -0700, Leann Ogasawara wrote: > On Tue, 2010-09-14 at 09:19 -0700, Leann Ogasawara wrote: > > On Mon, 2010-09-13 at 11:20 +1000, Christopher James Halse Rogers wrote: > > > Hello again! > > > > > > For Lucid we asked the kernel team to blacklist KMS on i830, i845 & i855 > > > to try to work around the instability in the intel drivers on those > > > cards. > > > > > > This instability (while, apparently, slightly reduced by the 2.12 DDX) > > > is still present in Maverick, so I asked the kernel team to re-enable > > > the blacklist in a recent upload. > > > > > > Since we've got the 2.12 DDX with no userspace modesetting support, that > > > means that these chips should get vesa. There's an issue¹ with X > > > actually loading vesa rather than fbdev or intel which I need to > > > investigate which is preventing this from happening now. > > > > > > The other option for these cards is to use KMS + the fbdev driver². > > > > > > There have been a couple of concerns raised about vesa: > > > * Possibly less capable of proper suspend/resume than KMS. > > > * Won't drive the display in the native mode for laptops with a > > > poorly-written video bios. > > > > > > fbdev+KMS will work where ever KMS works, and will set the native mode > > > where ever KMS sets the native mode. It is not capable of changing > > > resolution, however. > > > > > > I've been persuaded that fbdev+KMS will provide a better experience for > > > more people than kms-blacklist+vesa. This is a final call for comment > > > before I ask the kernel team to revert the blacklist for these cards and > > > flick the switch in xorg-server to use fbdev rather than intel. > > > > Hi Chris, > > > > Just wanted to get your final recommendation if we, the Ubuntu kernel > > team, should revert the KMS disablement patches. Let us know asap, as > > we hit Kernel Freeze this Thurs, Sept 16. > > Given our time constraints to make Kernel Freeze, I've reverted the KMS > disablement patches in the Ubuntu kernel for Maverick per the following > conversation in #ubuntu-kernel on FreeNode: > > <ogasawara> has anyone seen RAOF about? > <vanhoof> Sarvatt: ^^ > <Sarvatt> RAOF is at the X developers summit > <ogasawara> Sarvatt: maybe you can answer my question then... I need to know > if we need to drop those KMS disablement patches from the kernel. > <Sarvatt> yeah, we've already switched the server to use fbdev > <ogasawara> Sarvatt: ok cool, I'll drop the patches then. thanks. > <Sarvatt> well, xserver with the change isn't uploaded yet, he didn't find a > sponsor before he had to get on the plane > <Sarvatt> but he does intend for those to go away yeah > <apw> Sarvatt, if we don't drop them today and upload them they won't make > the release ... > <apw> kernel freeze is tommorrow > * Sarvatt nods >
ACK. Thanks for confirming this Robert.
signature.asc
Description: This is a digitally signed message part
-- Ubuntu-x mailing list Ubuntu-x@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-x