[Kernel-packages] [Bug 1824216] Re: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels
OK reading the original bug reports more closely, this *does* appear to be a different bug entirely. Because we never see a cursor on the screen, the laptop panel literally fails link training. ** This bug is no longer a duplicate of bug 1821820 Cannot boot or install - have to use nomodeset -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824216 Title: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels Status in linux package in Ubuntu: Confirmed Bug description: On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications. Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues. Intel is aware of this issue and has already created a patch. You can see the relevant threads here: https://bugs.freedesktop.org/show_bug.cgi?id=109959 And the patch here: https://patchwork.freedesktop.org/patch/296411/ It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1824216] Re: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels
*** This bug is a duplicate of bug 1821820 *** https://bugs.launchpad.net/bugs/1821820 So I'm not sure if this bug is actually a duplicate after all. I've done a fresh install of 19.04 and upgraded to kernel 5.0.0-11.12 (which supposedly fixed the other bug), and the link training issues with my Dell XPS 9575 laptop panel are still present. So it looks like the primary issue i'm experiencing has not yet been resolved. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824216 Title: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels Status in linux package in Ubuntu: Confirmed Bug description: On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications. Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues. Intel is aware of this issue and has already created a patch. You can see the relevant threads here: https://bugs.freedesktop.org/show_bug.cgi?id=109959 And the patch here: https://patchwork.freedesktop.org/patch/296411/ It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1824216] Re: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels
*** This bug is a duplicate of bug 1821820 *** https://bugs.launchpad.net/bugs/1821820 Here are the relevant portions of my dmesg with drm.debug=14 as a boot paramater. You can see my laptops display panel is still failing link training. 21:00:11 kernel: [drm:intel_dp_get_link_train_fallback_values [i915]] Retrying Link training for eDP with same parameters 21:00:11 kernel: [drm:intel_dp_start_link_train [i915]] [CONNECTOR:85:eDP-1] Link Training failed at link rate = 324000, lane count = 1 21:00:11 kernel: [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level 0 21:00:11 kernel: [drm:intel_dp_program_link_training_pattern [i915]] Using DP training pattern TPS1 21:00:11 kernel: [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level 0 21:00:11 kernel: [drm:intel_dp_start_link_train [i915]] Using LINK_RATE_SET value 04 ** Attachment added: "dmesg with drm.debug=14" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+attachment/5255576/+files/log%20messages -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824216 Title: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels Status in linux package in Ubuntu: Confirmed Bug description: On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications. Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues. Intel is aware of this issue and has already created a patch. You can see the relevant threads here: https://bugs.freedesktop.org/show_bug.cgi?id=109959 And the patch here: https://patchwork.freedesktop.org/patch/296411/ It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1824216] Re: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels
*** This bug is a duplicate of bug 1821820 *** https://bugs.launchpad.net/bugs/1821820 ** This bug has been marked a duplicate of bug 1821820 Cannot boot or install - have to use nomodeset -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824216 Title: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels Status in linux package in Ubuntu: Confirmed Bug description: On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications. Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues. Intel is aware of this issue and has already created a patch. You can see the relevant threads here: https://bugs.freedesktop.org/show_bug.cgi?id=109959 And the patch here: https://patchwork.freedesktop.org/patch/296411/ It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1824216] Re: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels
Might be a duplicate of this bug?: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821820 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824216 Title: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels Status in linux package in Ubuntu: Confirmed Bug description: On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications. Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues. Intel is aware of this issue and has already created a patch. You can see the relevant threads here: https://bugs.freedesktop.org/show_bug.cgi?id=109959 And the patch here: https://patchwork.freedesktop.org/patch/296411/ It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1824216] Re: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels
Here's a link to the Fedora bug report tracking the same issue: https://bugzilla.redhat.com/show_bug.cgi?id=1695275 which also includes lots of useful information. ** Bug watch added: Red Hat Bugzilla #1695275 https://bugzilla.redhat.com/show_bug.cgi?id=1695275 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824216 Title: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels Status in linux package in Ubuntu: Confirmed Bug description: On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications. Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues. Intel is aware of this issue and has already created a patch. You can see the relevant threads here: https://bugs.freedesktop.org/show_bug.cgi?id=109959 And the patch here: https://patchwork.freedesktop.org/patch/296411/ It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1824216] Re: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels
Unfortunately due to the nature of this bug, it's very hard to get any concrete logs (at least I'm not sure how to). If I boot with kernel modesetting for i915, then I can't even get to the ttys to pull down a dmesg. I'd rather not install 19.04 (wiping out my existing 18.10 installation) to track down the logs. The links that I provided do contain very detailed information about the problem. I've also confirmed that Fedora 30 beta also has the same problems - although there's a proposed patch/fix with kernel 5.0.7 that might make it in before release. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824216 Title: Linux 5.0 regression i915 module, black screen on boot for certain laptop panels Status in linux package in Ubuntu: Confirmed Bug description: On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications. Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues. Intel is aware of this issue and has already created a patch. You can see the relevant threads here: https://bugs.freedesktop.org/show_bug.cgi?id=109959 And the patch here: https://patchwork.freedesktop.org/patch/296411/ It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
