Date: Thu, 18 Aug 2022 07:51:49 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 265920] drm radeonkms doesn't work for DVI on RS780, RS880 Message-ID: <bug-265920-227-Dx8KuXCSxS@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-265920-227@https.bugs.freebsd.org/bugzilla/> References: <bug-265920-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265920 Stefan E=C3=9Fer <se@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|bugs@FreeBSD.org |manu@freebsd.org CC| |se@FreeBSD.org --- Comment #1 from Stefan E=C3=9Fer <se@FreeBSD.org> --- (In reply to alomobeto277 from comment #0) This appears to be identical to the issue I reported back in February 2022 = (bug #262043, https://github.com/freebsd/drm-kmod/issues/195). This problem exists in drm-510-kmod, while drm-54-kmod used to work (but was broken by the maintainer by API changes to linuxkpi in -CURRENT that were o= nly applied to drm-510-kmod and by declaring drm-54-kmod BROKEN on -CURRENT ins= tead of making it compatible with the changed linuxkpi). lkpi_iic0: <LinuxKPI I2C> on drm3 iicbus0: <Philips I2C bus> on lkpi_iic0 iic0: <I2C generic I/O> on iicbus0 [drm] Radeon Display Connectors [drm] Connector 0: [drm] VGA-1 [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c [drm] Encoders: [drm] CRT1: INTERNAL_KLDSCP_DAC1 [drm] Connector 1: [drm] DVI-D-1 [drm] HPD1 [drm] DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c [drm] Encoders: [drm] DFP3: INTERNAL_KLDSCP_LVTMA [drm] Connector 2: [drm] DP-1 [drm] HPD2 [drm] DDC: 0x7e20 0x7e20 0x7e24 0x7e24 0x7e28 0x7e28 0x7e2c 0x7e2c [drm] Encoders: [drm] DFP2: INTERNAL_UNIPHY drmn0: [drm] Cannot find any crtc or sizes This shows that everything worked except the communication with the display= in that final step. It is interesting that the DisplayPort connector could be used, I had only tested HDMI, since this observation narrows down the search space! I'm assigning this PR to Emmanuel Vadot, who last worked on these ports and= who decided to deprecate drm-54-kmod on -CURRENT instead of keeping it working = for users affected by this issue. --=20 You are receiving this mail because: You are the assignee for the bug.=
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