https://bugs.freedesktop.org/show_bug.cgi?id=98525
Bug ID: 98525
Summary: nouveau graphics freeze when using KDE Plasma 5 with
"fifo: PBDMA0: 00200000 subc 0 mthd 000c data
00000000"
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
Kernel version: 4.4.26
Graphic card: "ASUS GeForce GTX 660 PCI 3.0 2GB DDR5"
uname: "Linux 4.4.26-gentoo #1 SMP Mon Oct 31 17:05:30 CET 2016 x86_64 Intel(R)
Xeon(R) CPU E3-1230 v3 @ 3.30GHz GenuineIntel GNU/Linux
SW versions:
x11-base/xorg-drivers-1.18-r1
x11-base/xorg-server-1.18.4
x11-base/xorg-x11-7.4-r2
kde-plasma/kwin-5.7.5
The system freezes, the X screen gets locked, mouse can still be moved,
switching VT console is not possible, three-finger-salute does not work, no
keyboard login possible Login via SSH and reboot still possible.
The bug is usually triggered if huge parts of the display needs rapid updates,
e.g. compiling a piece of software in a X terminal in full screen mode.
I use the proprietary PGRAPH firmware due to bugs #69882, #93629, #93630 and
#95054.
Kernel message:
nouveau 0000:01:00.0: fifo: PBDMA0: 00200000 [METHOD] ch 12 [023f28f000
Compositor[2492]] subc 0 mthd 000c data 00000000
This message floods the logs until they are overwritten from the beginning. The
other message is "Missed NN kernel messages".
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