On Mon, Jan 07, 2013 at 10:12:12AM +0100, Sjoerd Simons wrote:
> On Sun, 2013-01-06 at 22:13 +0100, Daniel Vetter wrote:
> > Now with the intel-gfx m-l address fixed ...
> > -Daniel
> > 
> > On Sun, Jan 6, 2013 at 10:13 PM, Daniel Vetter <daniel.vet...@ffwll.ch> 
> > wrote:
> > > Hi all,
> > >
> > > Looks ugly, and the original commit doesn't have any link to the
> > > dmidecode information. Sjoerd&John, can you both please attach the
> > > output of dmidecode? If we're lucky, we can differentiate the two
> > > models somehow, if not we need to revert this patch, since regressions
> > > win over simple bugs.
> 
> Mine is attached, unfortunately the only interesting difference seems to
> be the Base board serial number:
> -     Serial Number: /sku
> +     Serial Number: XXXXXXXX
> 
> But given we both have an ID12 that's most likely not very relevant (or
> maybe different bios versions do different amounts of setup on the hdmi
> bridge).
> 
> Even though i did some attempts i've never seen the hdmi output work in
> linux (and didn't know it was attached to LVDS). John did mention it
> only works up to 720p, so it could very well be i simply never send it a
> mode it actually supports.
> 
> Reverting this patch will cause a regression in that the higher levels,
> e.g. X, always thinks there is an output on the LVDS port so it comes up
> in a very odd mode (but at least one can work around that with
> configuration), so i guess the patch should be reverted :/
> 
> Ideally we'd find a way to do hotplug detection on the lvds-to-hdmi
> bridge (any ideas where to look for that would be much appreciated). 

Unfortunately I have no clue (nor docs) how lvds->hdmi chains are supposed
to work. For real hdmi support we'd need a few things at least:
- some way to set up infoframes
- some way to switch between single-link and dual-link lvds modes (for the
  higher resolutions)
- some way to do hotplug detection (I guess we could use polling on the
  i2c pins as a fallback)

All this needs a new hdmi_on_lvds encoder/connector with relevant code,
plus a way to figure out whether we need this (either with a quirk table
or by looking at some magic vbt value I'm not aware of).

In short: Tons of work to make this work, and very unlikely that we'll get
around to it. If you're bored though I could give you some ideas though on
the #intel-gfx irc channel.

I've reverted the quirk entry to fix the regression.

Cheers, Daniel


> 
> > > Yours, Daniel
> > >
> > > On Tue, Dec 25, 2012 at 12:39 PM, John Tapsell <johnf...@gmail.com> wrote:
> > >> I have a Zotac ZDBOX SD ID12  and the following commit means that I no
> > >> longer have HDMI output.
> > >>
> > >> I've been told that I have a lvds-to-hdmi bridge, so this commit broke 
> > >> that.
> > >>
> > >> Commit:
> > >>
> > >>     drm/i915: no lvds quirk for Zotac ZDBOX SD ID12/ID13
> > >>
> > >>     BugLink: https://bugs.launchpad.net/bugs/1064924
> > >>
> > >>     This box claims to have an LVDS interface but doesn't
> > >>     actually have one.
> > >>
> > >>     Signed-off-by: Sjoerd Simons <sjoerd.sim...@collabora.co.uk>
> > >>     Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> > >>     (cherry picked from commit 9756fe38d10b2bf90c81dc4d2f17d5632e135364)
> > >>
> > >>     Signed-off-by: Joseph Salisbury <joseph.salisb...@canonical.com>
> > >>     Signed-off-by: Tim Gardner <tim.gard...@canonical.com>
> > >
> > >
> > >
> > > --
> > > Daniel Vetter
> > > Software Engineer, Intel Corporation
> > > +41 (0) 79 365 57 48 - http://blog.ffwll.ch
> > 
> > 
> > 
> 
> 

> # dmidecode 2.11
> SMBIOS 2.6 present.
> 22 structures occupying 1065 bytes.
> Table at 0x000FB9E0.
> 
> Handle 0x0000, DMI type 0, 24 bytes
> BIOS Information
>       Vendor: American Megatrends Inc.
>       Version: 080016 
>       Release Date: 12/23/2010
>       Address: 0xF0000
>       Runtime Size: 64 kB
>       ROM Size: 1024 kB
>       Characteristics:
>               ISA is supported
>               PCI is supported
>               PNP is supported
>               BIOS is upgradeable
>               BIOS shadowing is allowed
>               ESCD support is available
>               Boot from CD is supported
>               Selectable boot is supported
>               BIOS ROM is socketed
>               EDD is supported
>               5.25"/1.2 MB floppy services are supported (int 13h)
>               3.5"/720 kB floppy services are supported (int 13h)
>               3.5"/2.88 MB floppy services are supported (int 13h)
>               Print screen service is supported (int 5h)
>               8042 keyboard services are supported (int 9h)
>               Serial services are supported (int 14h)
>               Printer services are supported (int 17h)
>               CGA/mono video services are supported (int 10h)
>               ACPI is supported
>               USB legacy is supported
>               LS-120 boot is supported
>               ATAPI Zip drive boot is supported
>               BIOS boot specification is supported
>               Targeted content distribution is supported
>       BIOS Revision: 8.16
> 
> Handle 0x0001, DMI type 1, 27 bytes
> System Information
>       Manufacturer: ZOTAC
>       Product Name: ZBOXSD-ID12/ID13
>       Version: XX
>       Serial Number: GXXXX160XXXXX
>       UUID: 03000200-0400-0500-0006-000700080009
>       Wake-up Type: Power Switch
>       SKU Number: NA
>       Family: NA
> 
> Handle 0x0002, DMI type 2, 15 bytes
> Base Board Information
>       Manufacturer: ZOTAC
>       Product Name: ZBOXSD-ID12/ID13
>       Version: XX
>       Serial Number: XXXXXXXX
>       Asset Tag: NA
>       Features:
>               Board is a hosting board
>               Board is replaceable
>       Location In Chassis: NA
>       Chassis Handle: 0x0003
>       Type: Motherboard
>       Contained Object Handles: 0
> 
> Handle 0x0003, DMI type 3, 21 bytes
> Chassis Information
>       Manufacturer: To Be Filled By O.E.M.
>       Type: Desktop
>       Lock: Not Present
>       Version: To Be Filled By O.E.M.
>       Serial Number: To Be Filled By O.E.M.
>       Asset Tag: To Be Filled By O.E.M.
>       Boot-up State: Safe
>       Power Supply State: Safe
>       Thermal State: Safe
>       Security Status: None
>       OEM Information: 0x00000000
>       Height: Unspecified
>       Number Of Power Cords: 1
>       Contained Elements: 0
> 
> Handle 0x0004, DMI type 4, 42 bytes
> Processor Information
>       Socket Designation: CPU 1
>       Type: Central Processor
>       Family: Atom
>       Manufacturer: Intel            
>       ID: CA 06 01 00 FF FB EB BF
>       Signature: Type 0, Family 6, Model 28, Stepping 10
>       Flags:
>               FPU (Floating-point unit on-chip)
>               VME (Virtual mode extension)
>               DE (Debugging extension)
>               PSE (Page size extension)
>               TSC (Time stamp counter)
>               MSR (Model specific registers)
>               PAE (Physical address extension)
>               MCE (Machine check exception)
>               CX8 (CMPXCHG8 instruction supported)
>               APIC (On-chip APIC hardware supported)
>               SEP (Fast system call)
>               MTRR (Memory type range registers)
>               PGE (Page global enable)
>               MCA (Machine check architecture)
>               CMOV (Conditional move instruction supported)
>               PAT (Page attribute table)
>               PSE-36 (36-bit page size extension)
>               CLFSH (CLFLUSH instruction supported)
>               DS (Debug store)
>               ACPI (ACPI supported)
>               MMX (MMX technology supported)
>               FXSR (FXSAVE and FXSTOR instructions supported)
>               SSE (Streaming SIMD extensions)
>               SSE2 (Streaming SIMD extensions 2)
>               SS (Self-snoop)
>               HTT (Multi-threading)
>               TM (Thermal monitor supported)
>               PBE (Pending break enabled)
>       Version: Intel(R) Atom(TM) CPU D525   @ 1.80GHz              
>       Voltage: 1.1 V
>       External Clock: 200 MHz
>       Max Speed: 1800 MHz
>       Current Speed: 1800 MHz
>       Status: Populated, Enabled
>       Upgrade: Socket LGA775
>       L1 Cache Handle: 0x0005
>       L2 Cache Handle: 0x0006
>       L3 Cache Handle: Not Provided
>       Serial Number: To Be Filled By O.E.M.
>       Asset Tag: To Be Filled By O.E.M.
>       Part Number: To Be Filled By O.E.M.
>       Core Count: 2
>       Core Enabled: 2
>       Thread Count: 4
>       Characteristics:
>               64-bit capable
> 
> Handle 0x0005, DMI type 7, 19 bytes
> Cache Information
>       Socket Designation: L1-Cache
>       Configuration: Enabled, Not Socketed, Level 1
>       Operational Mode: Write Back
>       Location: Internal
>       Installed Size: 48 kB
>       Maximum Size: 48 kB
>       Supported SRAM Types:
>               Other
>       Installed SRAM Type: Other
>       Speed: Unknown
>       Error Correction Type: Parity
>       System Type: Data
>       Associativity: Other
> 
> Handle 0x0006, DMI type 7, 19 bytes
> Cache Information
>       Socket Designation: L2-Cache
>       Configuration: Enabled, Not Socketed, Level 2
>       Operational Mode: Write Back
>       Location: Internal
>       Installed Size: 1024 kB
>       Maximum Size: 1024 kB
>       Supported SRAM Types:
>               Other
>       Installed SRAM Type: Other
>       Speed: Unknown
>       Error Correction Type: Single-bit ECC
>       System Type: Unified
>       Associativity: 8-way Set-associative
> 
> Handle 0x0007, DMI type 5, 20 bytes
> Memory Controller Information
>       Error Detecting Method: 64-bit ECC
>       Error Correcting Capabilities:
>               None
>       Supported Interleave: One-way Interleave
>       Current Interleave: One-way Interleave
>       Maximum Memory Module Size: 4096 MB
>       Maximum Total Memory Size: 8192 MB
>       Supported Speeds:
>               Other
>       Supported Memory Types:
>               DIMM
>               SDRAM
>       Memory Module Voltage: 3.3 V
>       Associated Memory Slots: 2
>               0x0008
>               0x0009
>       Enabled Error Correcting Capabilities:
>               None
> 
> Handle 0x0008, DMI type 6, 12 bytes
> Memory Module Information
>       Socket Designation: DIMM0
>       Bank Connections: 0 1
>       Current Speed: Unknown
>       Type: DIMM SDRAM
>       Installed Size: 1024 MB (Single-bank Connection)
>       Enabled Size: 1024 MB (Single-bank Connection)
>       Error Status: OK
> 
> Handle 0x0009, DMI type 6, 12 bytes
> Memory Module Information
>       Socket Designation: DIMM1
>       Bank Connections: 2 3
>       Current Speed: Unknown
>       Type: DIMM SDRAM
>       Installed Size: Not Installed
>       Enabled Size: Not Installed
>       Error Status: OK
> 
> Handle 0x000A, DMI type 13, 22 bytes
> BIOS Language Information
>       Language Description Format: Long
>       Installable Languages: 1
>               en|US|iso8859-1
>       Currently Installed Language: en|US|iso8859-1
> 
> Handle 0x000B, DMI type 15, 35 bytes
> System Event Log
>       Area Length: 4 bytes
>       Header Start Offset: 0x0000
>       Header Length: 2 bytes
>       Data Start Offset: 0x0002
>       Access Method: Indexed I/O, one 16-bit index port, one 8-bit data port
>       Access Address: Index 0x046A, Data 0x046C
>       Status: Invalid, Not Full
>       Change Token: 0x00000000
>       Header Format: No Header
>       Supported Log Type Descriptors: 6
>       Descriptor 1: End of log
>       Data Format 1: OEM-specific
>       Descriptor 2: End of log
>       Data Format 2: OEM-specific
>       Descriptor 3: End of log
>       Data Format 3: OEM-specific
>       Descriptor 4: End of log
>       Data Format 4: OEM-specific
>       Descriptor 5: End of log
>       Data Format 5: OEM-specific
>       Descriptor 6: End of log
>       Data Format 6: OEM-specific
> 
> Handle 0x000C, DMI type 16, 15 bytes
> Physical Memory Array
>       Location: System Board Or Motherboard
>       Use: System Memory
>       Error Correction Type: None
>       Maximum Capacity: 4 GB
>       Error Information Handle: Not Provided
>       Number Of Devices: 2
> 
> Handle 0x000D, DMI type 19, 15 bytes
> Memory Array Mapped Address
>       Starting Address: 0x00000000000
>       Ending Address: 0x0003FFFFFFF
>       Range Size: 1 GB
>       Physical Array Handle: 0x000C
>       Partition Width: 4
> 
> Handle 0x000E, DMI type 17, 28 bytes
> Memory Device
>       Array Handle: 0x000C
>       Error Information Handle: Not Provided
>       Total Width: 64 bits
>       Data Width: 64 bits
>       Size: 1024 MB
>       Form Factor: SODIMM
>       Set: None
>       Locator: DIMM0
>       Bank Locator: BANK0
>       Type: DDR2
>       Type Detail: Synchronous
>       Speed: 800 MHz
>       Manufacturer: Manufacturer00
>       Serial Number: SerNum00
>       Asset Tag: AssetTagNum0
>       Part Number: ModulePartNumber00
>       Rank: Unknown
> 
> Handle 0x000F, DMI type 20, 19 bytes
> Memory Device Mapped Address
>       Starting Address: 0x00000000000
>       Ending Address: 0x0003FFFFFFF
>       Range Size: 1 GB
>       Physical Device Handle: 0x000E
>       Memory Array Mapped Address Handle: 0x000D
>       Partition Row Position: 1
>       Interleaved Data Depth: 1
> 
> Handle 0x0010, DMI type 17, 28 bytes
> Memory Device
>       Array Handle: 0x000C
>       Error Information Handle: Not Provided
>       Total Width: Unknown
>       Data Width: Unknown
>       Size: No Module Installed
>       Form Factor: DIMM
>       Set: None
>       Locator: DIMM1
>       Bank Locator: BANK1
>       Type: Unknown
>       Type Detail: Unknown
>       Speed: Unknown
>       Manufacturer: Manufacturer01
>       Serial Number: SerNum01
>       Asset Tag: AssetTagNum1
>       Part Number: ModulePartNumber01
>       Rank: Unknown
> 
> Handle 0x0011, DMI type 20, 19 bytes
> Memory Device Mapped Address
>       Starting Address: 0x00000000000
>       Ending Address: 0x000000003FF
>       Range Size: 1 kB
>       Physical Device Handle: 0x0010
>       Memory Array Mapped Address Handle: 0x000D
>       Partition Row Position: 1
>       Interleaved Data Depth: 1
> 
> Handle 0x0012, DMI type 32, 20 bytes
> System Boot Information
>       Status: No errors detected
> 
> Handle 0x0013, DMI type 41, 11 bytes
> Onboard Device
>       Reference Designation: To Be Filled By O.E.M.
>       Type: Video
>       Status: Enabled
>       Type Instance: 0
> 
> Handle 0x0014, DMI type 41, 11 bytes
> Onboard Device
>       Reference Designation: To Be Filled By O.E.M.
>       Type: SCSI Controller
>       Status: Disabled
>       Type Instance: 0
> 
> Handle 0x0015, DMI type 127, 4 bytes
> End Of Table
> 


-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Reply via email to