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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 52373] New: KMS makes screen black on ARUBA--TURKS hybrid device
Date: Sun, 22 Jul 2012 22:02:59 +0000	[thread overview]
Message-ID: <bug-52373-502@http.bugs.freedesktop.org/> (raw)

https://bugs.freedesktop.org/show_bug.cgi?id=52373

             Bug #: 52373
           Summary: KMS makes screen black on ARUBA--TURKS hybrid device
    Classification: Unclassified
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: reinkarn@gmail.com


Created attachment 64509
  --> https://bugs.freedesktop.org/attachment.cgi?id=64509
lspci

Just bought new Acer V3 notebook with hybrid AMD graphics, installed gentoo
without even Xs.
When booting with radeon.modeset=1, after loading radeon module screen goes
black (backlight is on, but nothing on the screen) (notebook works howewer, can
ssh into it), and dmesg shows two bad lines:

[drm:radeon_dp_link_train_ce] *ERROR* channel eq failed: 5 tries
[drm:radeon_dp_link_train_ce] *ERROR* channel eq failed

These lines repeat when hitting a key after backlight goes off for powersaving

When booting with no modesetting parameter, everything works fine.

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             reply	other threads:[~2012-07-22 22:02 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-22 22:02 bugzilla-daemon [this message]
2012-07-23  5:03 ` [Bug 52373] KMS makes screen black on ARUBA--TURKS hybrid device bugzilla-daemon
2012-07-23  5:05 ` bugzilla-daemon
2012-07-23  5:09 ` bugzilla-daemon
2012-07-23  5:24 ` bugzilla-daemon
2012-07-23  5:32 ` bugzilla-daemon
2012-07-23 14:58 ` bugzilla-daemon
2012-07-23 18:52 ` bugzilla-daemon

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