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 <[e-mail]>:
> > 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 <[e-mail]> 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 <[e-mail]>:
> > > 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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> Version: GnuPG v2
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> =DNks
> -----END PGP SIGNATURE-----

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

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

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