Re: [Bug 924989] Re: Black screen at boot on Thinkpad L520
On Thu, 2 Feb 2012 16:00:19 +0100 Vincent Vanackere wrote: > On Thu, Feb 2, 2012 at 15:35, Leann Ogasawara > wrote: > > Hi Vince, > > > > Thanks for the reference to the upstream patch. I've built a Precise > > test kernel with it applied. Could you please test and let me know your > > results. I can then commit this to our Ubuntu Precise repo. Test > > kernel can be found at the following location: > > > > http://people.canonical.com/~ogasawara/lp924989/amd64/ > > Yes, this test kernel works fine for me. > > > Also, do you know if this patch has been sent to upstream stable? It > > would be good to have it in an upcoming v3.2.y release. > > I fully agree the patch should be in a v3.2.y release but don't know > if it's been submitted yet... > CC'ing Jesse Barnes (the original author of the patch) in case he may > know if his patch "drm/i915: mask transcoder select bits before > setting them on LVDS" is scheduled for a stable release. Is this in the stable tree yet? If not, feel free to send it over to sta...@vger.kernel.org so Greg can pick it up. -- Jesse Barnes, Intel Open Source Technology Center -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/924989 Title: Black screen at boot on Thinkpad L520 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/924989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 924989] Re: Black screen at boot on Thinkpad L520
On Fri, Feb 3, 2012 at 05:13, Stephen Rees-Carter wrote: > Ok, I've just tested and the issue I reported in Bug #912992 is fixed by the > kernel you linked. > It sounds like Kernel 3.3 will have a fix in it, see comment #30 on that bug. > > Regarding my 'noapic' issues, I am still experiencing that one. (Bug > #903558) > > You obviously don't have this issue on your Thinkpad L520? > Any help would be greatly appreciated :) > No I don't have this issue at all. Two suggestions : - I would start by updating your BIOS to the latest version (I've seen in your report that you are using version 1.10 that is quite old, mine is at version 1.15). - I this doesn't solve the issue (there's a good chance that it will), you'll have no choice but finding the first bad kernel by using git bisect (this means you will have to compile your own kernels -- and manually apply the patch for the black screen issue for pre- 3.2 kernels -- this is painful but the best way to make progress in solving your issue) Good luck to you ! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/924989 Title: Black screen at boot on Thinkpad L520 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/924989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 924989] Re: Black screen at boot on Thinkpad L520
Le 2 févr. 2012 22:55, "Stephen Rees-Carter" a écrit : > > I have two bugs related to the Thinkpad L520 not being able to boot. I > assume this bug would be the same as one, or maybe even both, of them. > It's very frustrating and I'd like to get it fixed since my machine > still isn't 100% usable. > > Can you confirm which of these it is, so they can be marked as > duplicate? > > Graphics Issue: > https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/912992 This is definitely a duplicate. > 'noapic' boot flag needed: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903558 No idea about this one. You might want to test the fixed kernel at http://people.canonical.com/~ogasawara/lp924989/amd64/ however... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/924989 Title: Black screen at boot on Thinkpad L520 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/924989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 924989] Re: Black screen at boot on Thinkpad L520
On Thu, Feb 2, 2012 at 15:35, Leann Ogasawara wrote: > Hi Vince, > > Thanks for the reference to the upstream patch. I've built a Precise > test kernel with it applied. Could you please test and let me know your > results. I can then commit this to our Ubuntu Precise repo. Test > kernel can be found at the following location: > > http://people.canonical.com/~ogasawara/lp924989/amd64/ Yes, this test kernel works fine for me. > Also, do you know if this patch has been sent to upstream stable? It > would be good to have it in an upcoming v3.2.y release. I fully agree the patch should be in a v3.2.y release but don't know if it's been submitted yet... CC'ing Jesse Barnes (the original author of the patch) in case he may know if his patch "drm/i915: mask transcoder select bits before setting them on LVDS" is scheduled for a stable release. Vincent -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/924989 Title: Black screen at boot on Thinkpad L520 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/924989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
