** Attachment added: "lspci.txt" https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe/+bug/1744391/+attachment/5039754/+files/lspci.txt
** Description changed: When booting kernel 4.13, the display corrupts after grub boot menu. The problem persists with mainline kernel 4.14.13 but does not occur with kernel 4.10 or 4.4. I'm running Xenial i386 on EEEPC. - The kernel log shows "plane B assertion failure, should be off on pipe B - but is still active". See attached dmesg excerpt. + The kernel log shows "plane B assertion failure, should be off on pipe B but is still active". See attached dmesg excerpt. + Jan 15 20:23:39 skarabaeus kernel: [ 3.778791] WARNING: CPU: 0 PID: 144 at /build/linux-hwe-aMp2XS/linux-hwe-4.13.0/drivers/gpu/drm/i915/intel_display.c:1252 assert_planes_disabled+0x11e/0x140 [i915] - The bug is widespread: - https://bugs.freedesktop.org/show_bug.cgi?id=102929 - https://bugzilla.redhat.com/show_bug.cgi?id=1498725 + + The bug is widespread: https://bugs.freedesktop.org/show_bug.cgi?id=102929 https://bugzilla.redhat.com/show_bug.cgi?id=1498725 It has a patch pending that others have confirmed working. Maybe this patch should be ported to ubuntu. - Description: Ubuntu 16.04.3 LTS Release: 16.04 ** Description changed: When booting kernel 4.13, the display corrupts after grub boot menu. The problem persists with mainline kernel 4.14.13 but does not occur with kernel 4.10 or 4.4. I'm running Xenial i386 on EEEPC. The kernel log shows "plane B assertion failure, should be off on pipe B but is still active". See attached dmesg excerpt. Jan 15 20:23:39 skarabaeus kernel: [ 3.778791] WARNING: CPU: 0 PID: 144 at /build/linux-hwe-aMp2XS/linux-hwe-4.13.0/drivers/gpu/drm/i915/intel_display.c:1252 assert_planes_disabled+0x11e/0x140 [i915] - - The bug is widespread: https://bugs.freedesktop.org/show_bug.cgi?id=102929 https://bugzilla.redhat.com/show_bug.cgi?id=1498725 + The bug is widespread: + https://bugs.freedesktop.org/show_bug.cgi?id=102929 + https://bugzilla.redhat.com/show_bug.cgi?id=1498725 It has a patch pending that others have confirmed working. Maybe this - patch should be ported to ubuntu. + patch should be ported to ubuntu. See both referenced issues. Description: Ubuntu 16.04.3 LTS Release: 16.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1744391 Title: eeepc display corruption with kernel 4.13 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe/+bug/1744391/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
