https://bugs.freedesktop.org/show_bug.cgi?id=47007
--- Comment #21 from Alex Deucher agd5f@yahoo.com 2012-03-15 06:59:49 PDT --- (In reply to comment #15)
Bad news from a different motherboard. This one has DVI-D and DP connectors. With a DVI monitor connected stalls are still there due to the shared_ddc being true (DDC shared between DVI and VGA). Connectors look like this here:
[drm] Radeon Display Connectors [drm] Connector 0: [drm] DisplayPort [drm] HPD1 [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY [drm] Connector 1: [drm] DVI-D [drm] HPD2 [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c [drm] Encoders: [drm] DFP2: INTERNAL_UNIPHY [drm] Connector 2: [drm] VGA [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c [drm] Encoders: [drm] CRT1: INTERNAL_KLDSCP_DAC1
What system is this? Most new boards don't have shared ddc setups. Does DDC work on both the VGA and DVI ports? Can you send me a copy of the vbios?
(as root) (use lspci to get the bus id) cd /sys/bus/pci/devices/<pci bus id> echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom