Launchpad has imported 8 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=108083.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2018-09-27T07:36:16+00:00 Shun Terabayashi wrote: Created attachment 141757 full dmesg Kernel is 4.18.8, 4.18.9(Arch), mainline(AUR), and drm/drm-intel(https://github.com/shunonymous/aur-linux-drm-intel-git). My laptop displays nothing in builtin monitor when launching Wayland compositor.(weston, mutter) It displays by connecting or disconnecting external monitor (by HDMI) (mutter. weston doesn't work). startx works without any problem. I tried to revert https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=399334708b4f07b107094e5db4a390f0f25d2d4f on mainline, this symptom was disappeared. Machine: Razer Blade Stealth (2016 Later, UHD Model, w/o any eGPU) External Display: LG 27UD88-W (3840x2160) connected with HDMI OS: Arch Linux Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/0 ------------------------------------------------------------------------ On 2018-10-02T05:58:02+00:00 Lakshminarayana-vudum wrote: Shun, Can you apply following path and test if the issue is still existing? (https://bugs.freedesktop.org/attachment.cgi?id=141229). If the issue persists, send dmesg from boot with kernel parameters drm.debug=0x1e log_buf_len=4M. This way we know more information about the bug. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/1 ------------------------------------------------------------------------ On 2018-10-02T16:30:23+00:00 Shun Terabayashi wrote: I re-tested on latest drm/drm-intel (without patch), this issue is not exist. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/2 ------------------------------------------------------------------------ On 2018-10-03T07:12:12+00:00 Lakshminarayana-vudum wrote: Thankyou for your feedback. I will resolve this bug as worksforme. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/3 ------------------------------------------------------------------------ On 2018-10-20T19:35:42+00:00 Karolherbst-g wrote: this is actually an issue on the 4.18.8 and newer. Those commits need to be applied to 4.18 to fix this regression: 9ebd8202393dde9d3678c9ec162c1aa63ba17eac f24f6eb95807bca0dbd8dc5b2f3a4099000f4472 regression was caused by 399334708b4f07b107094e5db4a390f0f25d2d4f Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/14 ------------------------------------------------------------------------ On 2018-10-20T19:37:42+00:00 Karolherbst-g wrote: I think the same applies for the upcoming 4.19 as well. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/15 ------------------------------------------------------------------------ On 2018-10-23T11:28:57+00:00 Jani-nikula wrote: (In reply to Karol Herbst from comment #4) > this is actually an issue on the 4.18.8 and newer. > > Those commits need to be applied to 4.18 to fix this regression: > > 9ebd8202393dde9d3678c9ec162c1aa63ba17eac commit 9ebd8202393dde9d3678c9ec162c1aa63ba17eac Author: Dhinakaran Pandiyan <[email protected]> Date: Thu Sep 27 13:57:30 2018 -0700 drm/i915/dp: Fix link retraining comment in intel_dp_long_pulse() > f24f6eb95807bca0dbd8dc5b2f3a4099000f4472 commit f24f6eb95807bca0dbd8dc5b2f3a4099000f4472 Author: Dhinakaran Pandiyan <[email protected]> Date: Thu Sep 27 13:57:31 2018 -0700 drm/i915/dp: Restrict link retrain workaround to external monitors > regression was caused by > > 399334708b4f07b107094e5db4a390f0f25d2d4f commit 399334708b4f07b107094e5db4a390f0f25d2d4f Author: Jan-Marek Glogowski <[email protected]> Date: Sat Aug 25 15:10:35 2018 -0400 drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse" Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/16 ------------------------------------------------------------------------ On 2018-11-02T09:31:48+00:00 Jani-nikula wrote: The commits are headed upstream and tagged with appropriate tags to be backported to stable kernels. Please let us know if the fixes don't show up in v4.18 in a few weeks. Thanks for the report, closing. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797881/comments/17 ** Changed in: linux Status: Unknown => Fix Released ** Changed in: linux Importance: Unknown => Medium -- 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/1797881 Title: Display goes blank soon after boot on dell xps13 on linux- image-4.18.0-10-generic Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Bug description: Display goes blank soon after boot on dell xps13 with linux- image-4.18.0-10-generic. linux-image-4.18.0-7-generic working fine. dmesg outputs: [drm:intel_dp_start_link_train [i915]] *ERROR* [CONNECTOR:71:eDP-1] Link Training failed at link rate = 540000, lane count = 4 probably related to https://patchwork.kernel.org/patch/10633295/ ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-4.18.0-10-generic 4.18.0-10.11 ProcVersionSignature: Ubuntu 4.18.0-7.8-generic 4.18.5 Uname: Linux 4.18.0-7-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: baz 2265 F.... pulseaudio CurrentDesktop: XFCE Date: Mon Oct 15 14:25:35 2018 EcryptfsInUse: Yes HibernationDevice: RESUME=/dev/mapper/cryptswap1 InstallationDate: Installed on 2018-03-01 (227 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180301) MachineType: Dell Inc. XPS 13 9360 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-7-generic root=/dev/mapper/system-root ro quiet splash crashkernel=384M-:128M vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.18.0-7-generic N/A linux-backports-modules-4.18.0-7-generic N/A linux-firmware 1.175 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.9.0 dmi.board.name: 02PG84 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.9.0:bd07/09/2018:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn02PG84:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9360 dmi.product.sku: 082A dmi.sys.vendor: Dell Inc. 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