[Bug 195231] New: Continuous messages of "*ERROR* UVD not responding, trying to reset the VCPU!!!" and frozen screen

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=195231

            Bug ID: 195231
           Summary: Continuous messages of "*ERROR* UVD not responding,
                    trying to reset the VCPU!!!" and frozen screen
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.10.3
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: rbrito at ime.usp.br
        Regression: No

Hi.

First of all, I'm not sure if I selected the correct category when filing this
bug. I don't mind being corrected here.

OK, now, to the actual bug report.

My mother has a Dell Inspiron 15R N5110, which has an intel Sandy Bridge
integrated card and an AMD Radeon card (if I'm not mistaken it is reported as
an HD6400 series card, not being more specific).

According to my mother, it was working correctly with an Ubuntu running their
kernel 4.4 until it started only showing a black screen about 15 days ago.

I took her notebook and saw that the problem is that the kernel is now showing
many times the message "*ERROR* UVD not responding, trying to reset the
VCPU!!!" and the graphical environment does not completes loading.

I tried using Ubuntu's precompiled and unpatched 4.10.3, but the problem
persists (in fact, I was ping-pong'ing with many kernel versions to see if
something worked).

Besides working around the issue with radeon.modeset=0, so that the computer
can successfully boot, I don't know what to do to fix this issue, but I can
provide as much information as needed about it.

The unfortunate thing with the radeon.modeset=0 (that wasn't necessary, say,
about one month ago) is that she can't play some games that she used to and
that's her only entertainment, after having been diagnosed with some serious
illness. :(

Again, I can provide as much information as needed.


Thanks,

Rogério Brito.

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