#12935: Radeon HD5450 no VGA output (regression)
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Reporter: vidrep | Owner: kallisti5
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Drivers/Graphics/radeon_hd | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by kallisti5):
Your card is doing some weird crap.
{{{
126 KERN: radeon_hd: detect_displays: found EDID data on connector 1
127 KERN: radeon_hd: detect_displays: connector 1 has digital EDID and
is not a analog encoder.
128 KERN: radeon_hd: init_registers, registers for ATI chipset Cedar
crt #0 loaded
129 KERN: radeon_hd: detect_displays: bit-banging ddc for EDID on
connector 2
130 KERN: radeon_hd: connector_read_edid: found edid monitor on
connector #2
131 KERN: radeon_hd: detect_displays: found EDID data on connector 2
132 KERN: radeon_hd: detect_displays: Warning: monitor on connector 2
has false digital EDID flag and unloaded analog encoder!
133 KERN: radeon_hd: init_registers, registers for ATI chipset Cedar
crt #1 loaded
134 KERN: radeon_hd: Currently detected monitors===============
135 KERN: radeon_hd: Display #0 attached = true
136 KERN: radeon_hd: + connector ID: 1
137 KERN: radeon_hd: + connector type: DVI-I (Digital and Analog)
138 KERN: radeon_hd: + encoder type: TMDS
139 KERN: radeon_hd: + limits: Vert Min/Max: 56/75
140 KERN: radeon_hd: + limits: Horz Min/Max: 30/83
141 KERN: radeon_hd: Display #1 attached = true
142 KERN: radeon_hd: + connector ID: 2
143 KERN: radeon_hd: + connector type: DVI-I (Digital and Analog)
144 KERN: radeon_hd: + encoder type: TV DAC
145 KERN: radeon_hd: + limits: Vert Min/Max: 56/75
146 KERN: radeon_hd: + limits: Horz Min/Max: 30/83
147 KERN: radeon_hd: ==========================================
}}}
It looks like your card takes the DVI-I connector on the GPU (which
carries TMDS and DAC (analog and digital channels on DVI-I devices)) and
splits it into two physical connectors. A VGA connector and DVI-D
connector (i'm guessing?)
I need some more information here:
* Are you using any kind of DVI -> VGA adapters?
* How many ports are exposed on your card.
* Is this some kind of embedded GPU, or a physcial PCIe card?
You also mention that the monitor is connected over VGA, however the EDID
data on the LCD display is reporting a digital connector.
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Ticket URL: <https://dev.haiku-os.org/ticket/12935#comment:3>
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