Re: [coreboot] x230 - vgabios

[Michael Gerlach]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Patrick!

Uhm - I do not explicitly compressed it. I just added it to config..

Extracted it via

echo 1 > /sys/devices/pci0000\:00/0000\:00\:02.0/rom
cp /sys/devices/pci0000\:00/0000\:00\:02.0/rom vgabios.bin


How to check if it's compressed?


Best regards,


n3ph


On 05/23/15 03:22, Patrick Georgi wrote:
  2015-05-23 1:06 GMT+02:00 Michael Gerlach
<n3ph(a)terminal21.de>de>:
  GET_VBIOS: 7b46 3714 8b a2 e9
 
  printk(BIOS_DEBUG, "GET_VBIOS: %x %x %x %x
%x\n", 
 oprom->signature, pcir->vendor, pcir->classcode[0], 
 pcir->classcode[1], pcir->classcode[2]);
 
 But Signature should be 0x55aa:
 Just to double check: did you add the vgabios with
or without 
 compression? coreboot only supports uncompressed vgabios images
 (while seabios allows them compressed as well, if the name
 matches)
 
 
 Patrick

- -- 
Bitte benutzt GPG: http://de.wikipedia.org/wiki/GNU_Privacy_Guard



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x230 - vgabios

[Vladimir 'phcoder' Serbinenko]

Le Sat, May 23, 2015 à 4:46 AM, Michael Gerlach <n3ph(a)terminal21.de> a
écrit :

  -----BEGIN PGP SIGNED MESSAGE-----
 Hash: SHA1

 Hi Patrick!

 Uhm - I do not explicitly compressed it. I just added it to config..

 Extracted it via

 echo 1 > /sys/devices/pci0000\:00/0000\:00\:02.0/rom
 cp /sys/devices/pci0000\:00/0000\:00\:02.0/rom vgabios.bin

 That's your problem. ROM needs to be extracted, not dumped. You can
workaround
immediate problem by disabling checksum in SeaBIOS but dumped
oprom for intel is not fully functional, i.a. LCD stays black with windows.

 
 How to check if it's compressed?


 Best regards,


 n3ph


 On 05/23/15 03:22, Patrick Georgi wrote:
  2015-05-23 1:06 GMT+02:00 Michael Gerlach
<n3ph(a)terminal21.de>de>:
  GET_VBIOS: 7b46 3714 8b a2 e9
  printk(BIOS_DEBUG, "GET_VBIOS: %x %x %x %x
%x\n",
 oprom->signature, pcir->vendor, pcir->classcode[0],
 pcir->classcode[1], pcir->classcode[2]);

 But Signature should be 0x55aa:
 Just to double check: did you add the vgabios with
or without
 compression? coreboot only supports uncompressed vgabios images
 (while seabios allows them compressed as well, if the name
 matches)


 Patrick

 - --
 Bitte benutzt GPG: http://de.wikipedia.org/wiki/GNU_Privacy_Guard



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 --
 coreboot mailing list: coreboot(a)coreboot.org
 http://www.coreboot.org/mailman/listinfo/coreboot

x230 - vgabios

[Paul Menzel]

Dear Michael,


Am Samstag, den 23.05.2015, 04:28 +0200 schrieb Michael Gerlach:

  Uhm - I do not explicitly compressed it. I just added
it to config..
 
 Extracted it via
 
 echo 1 > /sys/devices/pci0000\:00/0000\:00\:02.0/rom
 cp /sys/devices/pci0000\:00/0000\:00\:02.0/rom vgabios.bin
 
 How to check if it's compressed?
The *file` command should help you.

For my AMD Video BIOS from the ASRock E350M1 I get the following.

        $ file vgabios.bin
        vgabios.rom: BIOS (ia32) ROM Ext. IBM comp. Video (113*512)

If the method you used, did not work, please report a bug to the Intel
graphics folks [1].


Thanks,

Paul


[1] https://01.org/linuxgraphics/documentation/how-report-bugs

x230 - vgabios

[Michael Gerlach]

Hey Paul!

This is actually what i have and as i already wrote in another mail i
got the image via:

  echo 1 >
/sys/devices/pci0000\:00/0000\:00\:02.0/rom
 cp /sys/devices/pci0000\:00/0000\:00\:02.0/rom vgabios.bin
On 05/23/15 11:36, Vladimir 'phcoder' Serbinenko wrote:>
  That's your problem. ROM needs to be extracted,
not dumped. You can
 workaround immediate problem by disabling checksum in SeaBIOS but
 dumped oprom for intel is not fully functional, i.a. LCD stays black
 with windows.
I guess the rom dumped from linux is broken... I still had no time to
try UEFITool - quite busy atm...


Attached .config and bootlog and some cmdline-shizzle...


[21:00:24][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ ./build/cbfstool
build/coreboot.rom print
coreboot.rom: 12288 kB, bootblocksize 1936, romsize 12582912, offset
0xb00000
alignment: 64 bytes, architecture: x86

Name                           Offset     Type         Size
cmos.default                   0xb00000   cmos_default 256
cmos_layout.bin                0xb00140   cmos_layout  1984
pci8086,0166.rom               0xb00940   optionrom    65536
cpu_microcode_blob.bin         0xb10980   microcode    22528
config                         0xb16200   raw          5457
revision                       0xb17780   raw          570
(empty)                        0xb17a00   null         34136
fallback/romstage              0xb1ff80   stage        73116
fallback/ramstage              0xb31d80   stage        74814
fallback/payload               0xb44200   payload      55082
pci8086,1502.rom               0xb51980   raw          61952
(empty)                        0xb60bc0   null         521176
mrc.cache                      0xbdffc0   mrc_cache    65536
(empty)                        0xbf0000   null         63512
[21:00:53][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ ./build/cbfstool
build/coreboot.rom extract -n pci8086,0166.rom -f /tmp/vgabios.bin
Found file pci8086,0166.rom at 0xb00940, type optionrom, size 65536
W: Only 'raw' files are safe to extract.
[21:01:17][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ file /tmp/vgabios.bin
/tmp/vgabios.bin: BIOS (ia32) ROM Ext. IBM comp. Video (128*512)
[21:01:26][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ hexdump
/tmp/vgabios.bin | head
0000000 aa55 e980 ea78 3030 3030 3030 3030 3030
0000010 3030 2540 59e9 9724 0040 0ab0 3030 4249
0000020 204d 4756 2041 6f43 706d 7461 6269 656c
0000030 4220 4f49 2e53 0320 006e 007e 008c c08b
0000040 4350 5249 8086 0106 001c 001c 0003 0300
0000050 0080 0000 8000 0080 0000 0000 0106 0116
0000060 0126 0156 0166 0176 0186 0000 036e c000
0000070 0000 0000 0000 0000 0000 0000 0088 c000
0000080 0000 0000 0000 0000 001a 0337 c000 0000
0000090 0000 0000 0000 0000 0000 0000 0000 0000
[21:01:31][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ md5sum
/tmp/vgabios.bin
bd4c14c5c2c6cd5fd1bee9428e31b320  /tmp/vgabios.bin
[21:09:05][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ md5sum
3rdparty/mainboard/lenovo/x230/vgabios.bin
bd4c14c5c2c6cd5fd1bee9428e31b320  3rdparty/mainboard/lenovo/x230/vgabios.bin
[21:09:17][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$


best regards,

n3ph



On 05/23/15 16:22, Paul Menzel wrote:
  Dear Michael,
 
 
 Am Samstag, den 23.05.2015, 04:28 +0200 schrieb Michael Gerlach:
 
  Uhm - I do not explicitly compressed it. I just
added it to config..

 Extracted it via

 echo 1 > /sys/devices/pci0000\:00/0000\:00\:02.0/rom
 cp /sys/devices/pci0000\:00/0000\:00\:02.0/rom vgabios.bin

 How to check if it's compressed?
 
 The *file` command should help you.
 
 For my AMD Video BIOS from the ASRock E350M1 I get the following.
 
         $ file vgabios.bin
         vgabios.rom: BIOS (ia32) ROM Ext. IBM comp. Video (113*512)
 
 If the method you used, did not work, please report a bug to the Intel
 graphics folks [1].
 
 
 Thanks,
 
 Paul
 
 
 [1] https://01.org/linuxgraphics/documentation/how-report-bugs
 
 

-- 
Bitte benutzt GPG: http://de.wikipedia.org/wiki/GNU_Privacy_Guard

Lenovo x230 - vgabios

[Paul Menzel]

Dear Michael,


Am Dienstag, den 26.05.2015, 21:12 +0200 schrieb Michael Gerlach:

  This is actually what i have and as i already wrote in
another mail i
 got the image via:
 
  echo 1 >
/sys/devices/pci0000\:00/0000\:00\:02.0/rom
 cp /sys/devices/pci0000\:00/0000\:00\:02.0/rom vgabios.bin
 
 On 05/23/15 11:36, Vladimir 'phcoder' Serbinenko wrote:>
  That's your problem. ROM needs to be
extracted, not dumped. You can
 workaround immediate problem by disabling checksum in SeaBIOS but
 dumped oprom for intel is not fully functional, i.a. LCD stays black
 with windows.
 
 I guess the rom dumped from linux is broken... I still had no time to
 try UEFITool - quite busy atm...
I am curious, how this will differ from the ROM file you extracted
above.

  Attached .config and bootlog
Thank you! Do you have any chance to get the SeaBIOS log too? (Boot
without graphics and get it from CBMEM console with `cbmem -c` over the
network (SSH)?

  and some cmdline-shizzle...
 
 [21:00:24][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ ./build/cbfstool
 build/coreboot.rom print
 coreboot.rom: 12288 kB, bootblocksize 1936, romsize 12582912, offset
 0xb00000
 alignment: 64 bytes, architecture: x86
Please turn of automatic line wrapping when you paste output when
composing your next message.

  Name                           Offset     Type        
Size
 cmos.default                   0xb00000   cmos_default 256
 cmos_layout.bin                0xb00140   cmos_layout  1984
 pci8086,0166.rom               0xb00940   optionrom    65536
 cpu_microcode_blob.bin         0xb10980   microcode    22528
 config                         0xb16200   raw          5457
 revision                       0xb17780   raw          570
 (empty)                        0xb17a00   null         34136
 fallback/romstage              0xb1ff80   stage        73116
 fallback/ramstage              0xb31d80   stage        74814
 fallback/payload               0xb44200   payload      55082
 pci8086,1502.rom               0xb51980   raw          61952
 (empty)                        0xb60bc0   null         521176
 mrc.cache                      0xbdffc0   mrc_cache    65536
 (empty)                        0xbf0000   null         63512
 [21:00:53][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ ./build/cbfstool
 build/coreboot.rom extract -n pci8086,0166.rom -f /tmp/vgabios.bin
 Found file pci8086,0166.rom at 0xb00940, type optionrom, size 65536
 W: Only 'raw' files are safe to extract.
 [21:01:17][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ file /tmp/vgabios.bin
 /tmp/vgabios.bin: BIOS (ia32) ROM Ext. IBM comp. Video (128*512)
 [21:01:26][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ hexdump
 /tmp/vgabios.bin | head
 0000000 aa55 e980 ea78 3030 3030 3030 3030 3030
 0000010 3030 2540 59e9 9724 0040 0ab0 3030 4249
 0000020 204d 4756 2041 6f43 706d 7461 6269 656c
 0000030 4220 4f49 2e53 0320 006e 007e 008c c08b
 0000040 4350 5249 8086 0106 001c 001c 0003 0300
 0000050 0080 0000 8000 0080 0000 0000 0106 0116
 0000060 0126 0156 0166 0176 0186 0000 036e c000
 0000070 0000 0000 0000 0000 0000 0000 0088 c000
 0000080 0000 0000 0000 0000 001a 0337 c000 0000
 0000090 0000 0000 0000 0000 0000 0000 0000 0000
 [21:01:31][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ md5sum
 /tmp/vgabios.bin
 bd4c14c5c2c6cd5fd1bee9428e31b320  /tmp/vgabios.bin
 [21:09:05][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ md5sum
 3rdparty/mainboard/lenovo/x230/vgabios.bin
 bd4c14c5c2c6cd5fd1bee9428e31b320  3rdparty/mainboard/lenovo/x230/vgabios.bin
Thank you for checking that these are indeed the same. From here you
have shown, that the file is not compressed.

Some more comments after looking at your log and config again.

[…]
  PCI: 00:00.0 init 3229 usecs
 PCI: 00:02.0 init
 GT Power Management Init
 IVB GT2 25W-35W Power Meter Weights
 GT Power Management Init (post VBIOS)
 PCI: 00:02.0 init 4503 usecs
 PCI: 00:14.0 init
[…]

That means coreboot is not configured to run the Video BIOS/VGA Option
ROM.

[…]
  # CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT is not set
[…]
  #
 # Devices
 #
 CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT=y
 CONFIG_NATIVE_VGA_INIT_USE_EDID=y
 CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT_TEXTMODECFG=y
 # CONFIG_VGA_ROM_RUN is not set
 # CONFIG_ON_DEVICE_ROM_RUN is not set
 # CONFIG_MULTIPLE_VGA_ADAPTERS is not set
[…]

This is the reason for the error message from `acpi.c`.

[…]
  ACPI:    * IGD OpRegion
 GET_VBIOS: 7b46 3714 8b a2 e9
 VBIOS not found.
[…]

As the Video BIOS has not been put into the right place by coreboot
(loading it from CBFS and putting it into memory(?)), it’s of course not
found.

        static void *get_intel_vbios(void)
        {
        	/* This should probably be looking at CBFS or we should always
        	 * deploy the VBIOS on Intel systems, even if we don't run it
        	 * in coreboot (e.g. SeaBIOS only scenarios).
        	 */
        	u8 *vbios = (u8 *)0xc0000;

        	optionrom_header_t *oprom = (optionrom_header_t *)vbios;
        	optionrom_pcir_t *pcir = (optionrom_pcir_t *)(vbios +
        						oprom->pcir_offset);
        

        	printk(BIOS_DEBUG, "GET_VBIOS: %x %x %x %x %x\n",
        		oprom->signature, pcir->vendor, pcir->classcode[0],
        		pcir->classcode[1], pcir->classcode[2]);


        	if ((oprom->signature == OPROM_SIGNATURE) &&
        		(pcir->vendor == PCI_VENDOR_ID_INTEL) &&
        		(pcir->classcode[0] == 0x00) &&
        		(pcir->classcode[1] == 0x00) &&
        		(pcir->classcode[2] == 0x03))
        		return (void *)vbios;

        	return NULL;
        }

You’ll need something like the following for your device.

        config ALWAYS_LOAD_OPROM
        	def_bool n
        	depends on VGA_ROM_RUN
        	help
        	  Always load option ROMs if any are found. The decision to run
        	  the ROM is still determined at runtime, but the distinction
        	  between loading and not running comes into play for CHROMEOS.

        	  An example where this is required is that VBT (Video BIOS Tables)
        	  are needed for the kernel's display driver to know how a piece of
        	  hardware is configured to be used.

(I have no idea how it’s determined at run time though, when to run the
ROM and when not.)

Also, the SeaBIOS logs are still needed to look into this further to see
why SeaBIOS does not execute the VGA Option ROM.

So maybe try first to let coreboot run the VGA Option ROM itself by
selecting `VGA_ROM_RUN`.

Additionally, please post a log with native graphics initialization
enabled. No idea, what USB debug dongle you use, but if you use the GRUB
payload it should be able to deal with the coreboot framebuffer and
maybe even output something over the USB debug connection.


Thanks,

Paul

Lenovo x230 - vgabios

[Michael Gerlach]

Hey Paul!


Missing CBMEM log attached...


On 05/27/15 07:55, Paul Menzel wrote:
  Dear Michael,
 
 
 Am Dienstag, den 26.05.2015, 21:12 +0200 schrieb Michael Gerlach:
 
  This is actually what i have and as i already
wrote in another mail i
 got the image via:

  echo 1 >
/sys/devices/pci0000\:00/0000\:00\:02.0/rom
 cp /sys/devices/pci0000\:00/0000\:00\:02.0/rom vgabios.bin
 On 05/23/15 11:36, Vladimir 'phcoder' Serbinenko wrote:>
  That's your problem. ROM needs to be
extracted, not dumped. You can
 workaround immediate problem by disabling checksum in SeaBIOS but
 dumped oprom for intel is not fully functional, i.a. LCD stays black
 with windows.
 I guess the rom dumped from linux is broken... I still had no time to
 try UEFITool - quite busy atm...
 
 I am curious, how this will differ from the ROM file you extracted
 above.
 
  Attached .config and bootlog
 
 Thank you! Do you have any chance to get the SeaBIOS log too? (Boot
 without graphics and get it from CBMEM console with `cbmem -c` over the
 network (SSH)?
 
  and some cmdline-shizzle...

 [21:00:24][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ ./build/cbfstool
 build/coreboot.rom print
 coreboot.rom: 12288 kB, bootblocksize 1936, romsize 12582912, offset
 0xb00000
 alignment: 64 bytes, architecture: x86
 
 Please turn of automatic line wrapping when you paste output when
 composing your next message.
 
  Name                           Offset     Type   
     Size
 cmos.default                   0xb00000   cmos_default 256
 cmos_layout.bin                0xb00140   cmos_layout  1984
 pci8086,0166.rom               0xb00940   optionrom    65536
 cpu_microcode_blob.bin         0xb10980   microcode    22528
 config                         0xb16200   raw          5457
 revision                       0xb17780   raw          570
 (empty)                        0xb17a00   null         34136
 fallback/romstage              0xb1ff80   stage        73116
 fallback/ramstage              0xb31d80   stage        74814
 fallback/payload               0xb44200   payload      55082
 pci8086,1502.rom               0xb51980   raw          61952
 (empty)                        0xb60bc0   null         521176
 mrc.cache                      0xbdffc0   mrc_cache    65536
 (empty)                        0xbf0000   null         63512
 [21:00:53][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ ./build/cbfstool
 build/coreboot.rom extract -n pci8086,0166.rom -f /tmp/vgabios.bin
 Found file pci8086,0166.rom at 0xb00940, type optionrom, size 65536
 W: Only 'raw' files are safe to extract.
 [21:01:17][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ file /tmp/vgabios.bin
 /tmp/vgabios.bin: BIOS (ia32) ROM Ext. IBM comp. Video (128*512)
 [21:01:26][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ hexdump
 /tmp/vgabios.bin | head
 0000000 aa55 e980 ea78 3030 3030 3030 3030 3030
 0000010 3030 2540 59e9 9724 0040 0ab0 3030 4249
 0000020 204d 4756 2041 6f43 706d 7461 6269 656c
 0000030 4220 4f49 2e53 0320 006e 007e 008c c08b
 0000040 4350 5249 8086 0106 001c 001c 0003 0300
 0000050 0080 0000 8000 0080 0000 0000 0106 0116
 0000060 0126 0156 0166 0176 0186 0000 036e c000
 0000070 0000 0000 0000 0000 0000 0000 0088 c000
 0000080 0000 0000 0000 0000 001a 0337 c000 0000
 0000090 0000 0000 0000 0000 0000 0000 0000 0000
 [21:01:31][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ md5sum
 /tmp/vgabios.bin
 bd4c14c5c2c6cd5fd1bee9428e31b320  /tmp/vgabios.bin
 [21:09:05][n3ph@c3po:~/Stuff/coreboot/x230/coreboot]$ md5sum
 3rdparty/mainboard/lenovo/x230/vgabios.bin
 bd4c14c5c2c6cd5fd1bee9428e31b320  3rdparty/mainboard/lenovo/x230/vgabios.bin
 
 Thank you for checking that these are indeed the same. From here you
 have shown, that the file is not compressed.
 
 Some more comments after looking at your log and config again.
 
 […]
  PCI: 00:00.0 init 3229 usecs
 PCI: 00:02.0 init
 GT Power Management Init
 IVB GT2 25W-35W Power Meter Weights
 GT Power Management Init (post VBIOS)
 PCI: 00:02.0 init 4503 usecs
 PCI: 00:14.0 init
 […]
 
 That means coreboot is not configured to run the Video BIOS/VGA Option
 ROM.
 
 […]
  # CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT is not set
 […]
  #
 # Devices
 #
 CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT=y
 CONFIG_NATIVE_VGA_INIT_USE_EDID=y
 CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT_TEXTMODECFG=y
 # CONFIG_VGA_ROM_RUN is not set
 # CONFIG_ON_DEVICE_ROM_RUN is not set
 # CONFIG_MULTIPLE_VGA_ADAPTERS is not set
 […]
 
 This is the reason for the error message from `acpi.c`.
 
 […]
  ACPI:    * IGD OpRegion
 GET_VBIOS: 7b46 3714 8b a2 e9
 VBIOS not found.
 […]
 
 As the Video BIOS has not been put into the right place by coreboot
 (loading it from CBFS and putting it into memory(?)), it’s of course not
 found.
 
         static void *get_intel_vbios(void)
         {
         	/* This should probably be looking at CBFS or we should always
         	 * deploy the VBIOS on Intel systems, even if we don't run it
         	 * in coreboot (e.g. SeaBIOS only scenarios).
         	 */
         	u8 *vbios = (u8 *)0xc0000;
 
         	optionrom_header_t *oprom = (optionrom_header_t *)vbios;
         	optionrom_pcir_t *pcir = (optionrom_pcir_t *)(vbios +
         						oprom->pcir_offset);
         
 
         	printk(BIOS_DEBUG, "GET_VBIOS: %x %x %x %x %x\n",
         		oprom->signature, pcir->vendor, pcir->classcode[0],
         		pcir->classcode[1], pcir->classcode[2]);
 
 
         	if ((oprom->signature == OPROM_SIGNATURE) &&
         		(pcir->vendor == PCI_VENDOR_ID_INTEL) &&
         		(pcir->classcode[0] == 0x00) &&
         		(pcir->classcode[1] == 0x00) &&
         		(pcir->classcode[2] == 0x03))
         		return (void *)vbios;
 
         	return NULL;
         }
 
 You’ll need something like the following for your device.
 
         config ALWAYS_LOAD_OPROM
         	def_bool n
         	depends on VGA_ROM_RUN
         	help
         	  Always load option ROMs if any are found. The decision to run
         	  the ROM is still determined at runtime, but the distinction
         	  between loading and not running comes into play for CHROMEOS.
 
         	  An example where this is required is that VBT (Video BIOS Tables)
         	  are needed for the kernel's display driver to know how a piece of
         	  hardware is configured to be used.
 
 (I have no idea how it’s determined at run time though, when to run the
 ROM and when not.)
 
 Also, the SeaBIOS logs are still needed to look into this further to see
 why SeaBIOS does not execute the VGA Option ROM.
 
 So maybe try first to let coreboot run the VGA Option ROM itself by
 selecting `VGA_ROM_RUN`.
 
 Additionally, please post a log with native graphics initialization
 enabled. No idea, what USB debug dongle you use, but if you use the GRUB
 payload it should be able to deal with the coreboot framebuffer and
 maybe even output something over the USB debug connection.
 
 
 Thanks,
 
 Paul
 
 

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Lenovo x230 - vgabios

[Michael Gerlach]

Here we go...

I guess cbmem.log should be enough?

Attached one boot with CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y set and one
with CONFIG_VGA_ROM_RUN=y and CONFIG_S3_VGA_ROM_RUN=y..

MAINBOARD_DO_NATIVE_VGA_INIT does nothing - display is initialzed as
recently as kernel is already loaded and display driver starts working.

VGA_ROM_RUN at least corectly initialize the display, but - as already
mentioned - no output from coreboot nor seabios is displayed - just a
white blinking cursor until kernel gets loaded.. I guess i have no
timeout in grub2 - so this might be the reason why i also see no output
from grub..



best regards,


n3ph

Lenovo x230 - vgabios

[Michael Gerlach]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Since SeaBios seems to be bothered about the checksum of the oprom i
tried to disable the checksum_check via:

./build/cbfstool build/coreboot.rom add-int -i 0 -n
etc/optionroms-checksum

But it seems like there is sth. wrong with that vbios.. Multi-coloured
stripes and strange distortions until kernel boots...

I guess i start using UEFITool to re-extract it...


best regards,

n3ph


On 05/27/15 16:47, Michael Gerlach wrote:
  Here we go...
 
 I guess cbmem.log should be enough?
 
 Attached one boot with CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y set
 and one with CONFIG_VGA_ROM_RUN=y and CONFIG_S3_VGA_ROM_RUN=y..
 
 MAINBOARD_DO_NATIVE_VGA_INIT does nothing - display is initialzed
 as recently as kernel is already loaded and display driver starts 
 working.
 
 VGA_ROM_RUN at least corectly initialize the display, but - as 
 already mentioned - no output from coreboot nor seabios is
 displayed - just a white blinking cursor until kernel gets loaded..
 I guess i have no timeout in grub2 - so this might be the reason
 why i also see no output from grub..
 
 
 
 best regards,
 
 
 n3ph
 
 
 

- -- 
Bitte benutzt GPG: http://de.wikipedia.org/wiki/GNU_Privacy_Guard



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Lenovo x230 - vgabios

[Michael Gerlach]

Forgot to attach cbmem.log


best regards,

n3ph

On 05/27/15 17:32, Michael Gerlach wrote:
  Since SeaBios seems to be bothered about the checksum
of the oprom i
 tried to disable the checksum_check via:
 
 ./build/cbfstool build/coreboot.rom add-int -i 0 -n
 etc/optionroms-checksum
 
 But it seems like there is sth. wrong with that vbios.. Multi-coloured
 stripes and strange distortions until kernel boots...
 
 I guess i start using UEFITool to re-extract it...
 
 
 best regards,
 
 n3ph
 
 
 On 05/27/15 16:47, Michael Gerlach wrote:
  Here we go...
 
  I guess cbmem.log should be enough?
 
  Attached one boot with
CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y set
 and one with CONFIG_VGA_ROM_RUN=y and CONFIG_S3_VGA_ROM_RUN=y..
 
  MAINBOARD_DO_NATIVE_VGA_INIT does nothing -
display is initialzed
 as recently as kernel is already loaded and display driver starts 
 working.
 
  VGA_ROM_RUN at least corectly initialize the
display, but - as 
 already mentioned - no output from coreboot nor seabios is
 displayed - just a white blinking cursor until kernel gets loaded..
 I guess i have no timeout in grub2 - so this might be the reason
 why i also see no output from grub..
 
 
 
  best regards,
 
 
  n3ph
 
 
 
 
 
 
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