Date: Sat, 12 Nov 2022 16:46:08 +0000 From: bugzilla-noreply@freebsd.org To: x11@FreeBSD.org Subject: maintainer-feedback requested: [Bug 267730] graphics/drm-kmod Screen artifacts with amdgpu Message-ID: <bug-267730-7141-YFXraEzH1P@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-267730-7141@https.bugs.freebsd.org/bugzilla/> References: <bug-267730-7141@https.bugs.freebsd.org/bugzilla/>
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Bugzilla Automation <bugzilla@FreeBSD.org> has asked freebsd-x11 (Nobody) <x11@FreeBSD.org> for maintainer-feedback: Bug 267730: graphics/drm-kmod Screen artifacts with amdgpu https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D267730 --- Description --- Describe the bug: When using amdgpu, white-on-black horizontal lines intermittently flash on right half of screen. See video attached below in Screenshots FreeBSD version: FreeBSD fbsd 14.0-CURRENT FreeBSD 14.0-CURRENT #0 main-n258691-24cf7a8d628:= Thu Oct 20 07:55:17 UTC 2022 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64 pciconf: vgapci0@pci0:9:0:0: class=3D0x030000 rev=3D0xc8 hdr=3D0x00 vendor=3D0x1002 device=3D0x1638 subvendor=3D0x1043 subdevice=3D0x8809 vendor =3D 'Advanced Micro Devices, Inc. [AMD/ATI]' device =3D 'Cezanne' class =3D display subclass =3D VGA DRM KMOD version: drm-510-kmod 5.10.113_7 drm-kmod 20220907_1 To Reproduce: Install either 13.1-RELEASE, 13.1-STABLE, or 14.0, install drm-kmod package, enable amdgpu by adding kld_list=3D"amdgpu" to /etc/rc.conf, and log into a console. Screenshot: https://user-images.githubusercontent.com/11449161/198061203-8056e97d-7a3d-= 4ccb -945f-fcc6423e88cb.mp4 Additional context: It appears support for vendor=3D0x1002 device=3D0x1638 graphics card has be= en added: https://github.com/freebsd/drm-kmod/blob/5.10-lts/drivers/gpu/drm/amd/amdgp= u/am dgpu_drv.c#L1102 Same issue presents on any FreeBSD version listed above, whether built from source or installed from snapshot. Disabling video mode using hw.vga.textmode=3D1 does not resolve the issue. The issue carries over into an X session. Notably, the issue disappears when compiling anything, whether in the conso= le or X. Github issue previously opened under freebsd/drm-kmod at https://github.com/freebsd/drm-kmod/issues/213
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