maintainer-feedback requested: [Bug 297135] graphics/drm-66-kmod: Fails with integrated AMD graphics

[email protected] Wed, 29 Jul 2026 07:37:34 +0000
Newsgroups gmane.os.freebsd.devel.x11
Message-ID <[email protected]/bugzilla/>
Bugzilla Automation <[email protected]> has asked freebsd-x11 (Nobody)
<[email protected]> for maintainer-feedback:
Bug 297135: graphics/drm-66-kmod: Fails with integrated AMD graphics
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D297135



--- Description ---
This port fails with the AMD graphics controller on X870 Tomahawk MB.

Graphics starts but it prints the following into the system log.

$ sysctl hw.model
hw.model: AMD Ryzen 9 9950X 16-Core Processor=09=09=20


$ pciconf -lv | grep -B4 VGA
vgapci1@pci0:113:0:0:	class=3D0x030000 rev=3D0xc1 hdr=3D0x00 vendor=3D0x1002
device=3D0x13c0 subvendor=3D0x1462 subdevice=3D0x7e51
    vendor     =3D 'Advanced Micro Devices, Inc. [AMD/ATI]'
    device     =3D 'Granite Ridge [Radeon Graphics]'
    class      =3D display
    subclass   =3D VGA




[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring sdma0
[drm] Fence fallback timer expired on ring sdma0
[drm] Fence fallback timer expired on ring sdma0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring sdma0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0
[drm] Fence fallback timer expired on ring gfx_0.0.0