[Bug 91303] New: HD7600 glitches with TV Tuner

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Jul 10 22:46:40 PDT 2015


            Bug ID: 91303
           Summary: HD7600 glitches with TV Tuner
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: minor
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: uudruid74 at gmail.com
        QA Contact: xorg-team at lists.x.org

My TV Tuner is displaying some odd "glitches"; little bits of the screen that
seem to be corrupt.  Some form of memory corruption or other.  Its not just
tearing.  The link below has some pictures, but I can make some more if you
like.  Also, (this is very weird), the problem will go away if I slam my CPUs
with extra work to do.  The easiest way to do this is run Handbrake and let it
encode a video.  Luckily this takes awhile on my slow CPU, but to watch TV, I
have to keep restarting a handbrake job for the video output to be readable.

I originally thought this was a tvtime bug, and then a v4l bug, but it goes
away if I install the ATI/AMD binary (fglrx) drivers.  However, that isn't a
good option for me since getting those drivers to work with recent kernels and
gnome 3.16 is nearly impossible.  Since the fglrx drivers doesn't have the
problem, I will assume its a driver issue.

My older bug report to tvtime with the pictures is here:

Any chance there is some magic configuration to fix it?

I have a laptop with integrated APU AMD A8-4555M APU with Radeon(tm) HD
which is 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Trinity [Radeon HD 7600G]

TV Tuner is Hauppage ... Bus 001 Device 004: ID 2040:7217 Hauppauge 

Dual monitor set-up with laptop screen at ... eDP connected primary
1366x768+1920+535 and other monitor is HDMI-0 connected 1920x1080+0+0 
Problem exists on either screen or with HDMI unplugged

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