[Nouveau] [Bug 97620] New: [REGRESSION] KMS having issues after kernel upgrade (4.5.1-1 to 4.6.4-1)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Sep 7 03:39:04 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=97620

            Bug ID: 97620
           Summary: [REGRESSION] KMS having issues after kernel upgrade
                    (4.5.1-1 to 4.6.4-1)
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: lukeisgreat at gmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 126259
  --> https://bugs.freedesktop.org/attachment.cgi?id=126259&action=edit
working kernel version

Originally diagnosed in https://bbs.archlinux.org/viewtopic.php?id=216364

distro is Arch. Music studio machine with an nvidia GeForce GTX 460 and
"ACHIEVA Shimian QH270-Lite 27" Wide QHD PC Monitor DVI-D 2560x1440" connected
via DVI.

Have been using nouveau without issue since 2012. Kernel update from 4.5.1-1 to
(4.6.4-1 or 4.6.7-rt11-2-rt) causes a lower than standard resolution during
kernel messages then no video once X attempts to start. Reverting to 4.5.1-1
works perfectly. "nomodeset single" kernel options allow me to get to a
terminal.

some package versions that don't change between kernels:
extra/mesa 12.0.2-1 [installed]
extra/xf86-video-nouveau 1.0.12-2 (xorg-drivers xorg) [installed]

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