AL13N schreef op 2023-03-10 13:38:
Dave Stevenson schreef op 2023-03-09 13:59:
On Wed, 8 Mar 2023 at 22:46, AL13N <alien@xxxxxxxx> wrote:
AL13N schreef op 2023-03-08 22:16:
> Maxime Ripard schreef op 2023-03-08 13:35:
>> Hi,
>>
>> On Tue, Mar 07, 2023 at 05:10:16PM +0000, Dave Stevenson wrote:
>>> On Tue, 7 Mar 2023 at 16:25, AL13N <alien@xxxxxxxx> wrote:
>>> > AL13N schreef op 2023-03-06 17:34:
>>> > > I have a RPI4B connected on 2nd HDMI port (furthest away from power)
>>> > > to a 4K TV, which works until 5.16, from 5.17 there is no X (or
>>> > > plymouth), the cause of no X is that EDID gives nothing, and in the
>>> > > journal; there is "Cannot find any crct or sizes". Only the kernel is
>>> > > changed for this.
>>> > >
>>> > > In 5.16 instead of this message there is a bunch of hex lines prefixed
>>> > > with BAD.
>>> > >
>>> > > It is still broken in 6.1 at the very least.
>>> > >
>>> > > I donno if this is related to this part, but I wanted to try a newer
>>> > > kernel, because the RPI4 seems to do all the video decoding in
>>> > > software and cannot seem to handle it.
>>> > >
>>> > >
>>> > > logs:
>>> > > vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_ops [vc4])
>>> > > vc4-drm gpu: bound fe004000.txp (ops vc4_txp_ops [vc4])
>>> > > vc4-drm gpu: bound fe206000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > > vc4-drm gpu: bound fe207000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > > vc4-drm gpu: bound fe20a000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > > vc4-drm gpu: bound fe216000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > > vc4-drm gpu: bound fec12000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > > checking generic (3ea81000 12c000) vs hw (0 ffffffffffffffff)
>>> > > fb0: switching to vc4 from simple
>>> > > Console: switching to colour dummy device 80x25
>>> > > [drm] Initialized vc4 0.0.0 20140616 for gpu on minor 0
>>> > > vc4-drm gpu: [drm] Cannot find any crtc or sizes
>>> >
>>> > 5.16 log has:
>>> >
>>> > vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_ops [vc4])
>>> > vc4-drm gpu: bound fe004000.txp (ops vc4_txp_ops [vc4])
>>> > vc4-drm gpu: bound fe206000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > vc4-drm gpu: bound fe207000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > vc4-drm gpu: bound fe20a000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > vc4-drm gpu: bound fe216000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > vc4-drm gpu: bound fec12000.pixelvalve (ops vc4_crtc_ops [vc4])
>>> > [drm] Initialized vc4 0.0.0 20140616 for gpu on minor 0
>>> > [00] BAD 00 ff ff ff ff ff ff 00 36 74 00 00 00 00 00 00
>>> > [00] BAD 0b 1f 01 03 00 23 01 78 0a cf 74 a3 57 4c b0 23
>>> > [00] BAD 09 48 4c 00 00 00 01 01 01 ff 01 ff ff 01 01 01
>>> > [00] BAD 01 01 01 01 01 20 08 e8 00 30 f2 70 5a 80 b0 58
>>> > [00] BAD 8a 00 c4 8e 21 00 00 1e 02 3a 80 18 71 38 2d 40
>>> > [00] BAD 58 2c 45 00 c4 8e 21 00 00 1e 00 00 00 fc 00 53
>>> > [00] BAD 41 4c 4f 52 41 0a 20 20 20 20 20 20 00 00 00 fd
>>> > [00] BAD 00 3b 46 1f 8c 3c 00 0a 20 20 20 20 20 20 01 aa
>>> > Console: switching to colour frame buffer device 240x67
>>> > vc4-drm gpu: [drm] fb0: vc4drmfb frame buffer device
>>> >
>>> >
>>> > i donno what this bad is, but it doesn't happen in 5.17... maybe these
>>> > BAD got filtered out, but they did end up working for me? or something?
>>> > i donno...
>>>
>>> Run it through edid-decode - the checksum is wrong.
>>>
>>> Block 0, Base EDID:
>>> EDID Structure Version & Revision: 1.3
>>> Vendor & Product Identification:
>>> Manufacturer: MST
>>> Model: 0
>>> Made in: week 11 of 2021
>>> Basic Display Parameters & Features:
>>> Analog display
>>> Input voltage level: 0.7/0.3 V
>>> Blank level equals black level
>>> Maximum image size: 35 cm x 1 cm
>>> Gamma: 2.20
>>> RGB color display
>>> First detailed timing is the preferred timing
>>> Color Characteristics:
>>> Red : 0.6396, 0.3398
>>> Green: 0.2998, 0.6904
>>> Blue : 0.1376, 0.0380
>>> White: 0.2822, 0.2968
>>> Established Timings I & II: none
>>> Standard Timings:
>>> GTF : 2288x1432 61.000 Hz 16:10 90.463 kHz 282.245 MHz
>>> Detailed Timing Descriptors:
>>> DTD 1: 3840x2160 60.000 Hz 16:9 135.000 kHz 594.000 MHz
>>> (708
>>> mm x 398 mm)
>>> Hfront 176 Hsync 88 Hback 296 Hpol P
>>> Vfront 8 Vsync 10 Vback 72 Vpol P
>>> DTD 2: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz
>>> (708
>>> mm x 398 mm)
>>> Hfront 88 Hsync 44 Hback 148 Hpol P
>>> Vfront 4 Vsync 5 Vback 36 Vpol P
>>> Display Product Name: 'SALORA'
>>> Display Range Limits:
>>> Monitor ranges (GTF): 59-70 Hz V, 31-140 kHz H, max dotclock 600
>>> MHz
>>> Extension blocks: 1
>>> Checksum: 0xaa (should be 0xeb)
>>>
>>> Weird that it also says that it's an analog display when it's
>>> connected over HDMI. Something rather bizarre there, and I think
>>> it'll
>>> hit problems in drm_edid at [1] as we end up with a connector having
>>> no color_formats defined. I was discussing this with Maxime only last
>>> week, but in relation to VGA monitors connected through HDMI to VGA
>>> adapters without rewriting the EDID.
>>>
>>> If you have an issue between 5.16 and 5.17, then I'd guess at [2] and
>>> your monitor not asserting hotplug correctly. The raw hotplug status
>>> is reported in /sys/kernel/debug/dri/N/hdmi0_regs (N will be either 0
>>> or 1 depending on the probe order of the vc4 and v3d drivers). Grep
>>> for HDMI_HOTPLUG.
>>
>> If it's an option, bisecting between 5.16 and 5.17 which commit
>> introduced the regression would be nice.
>>
>>> Incorrect hotplug behaviour causes grief when combined with HDMI2.0
>>> and scrambling. If you don' t know the other end has been
>>> disconnected, then you never know that scrambling needs to be
>>> re-negotiated over SCDC, and the display will typically end up just
>>> being blank.
>>>
>>> [1]
>>> https://github.com/torvalds/linux/blob/master/drivers/gpu/drm/drm_edid.c#L6460
>>> [2]
>>> https://github.com/torvalds/linux/commit/cc5f1cbbc1e12ad5b11d594159fe793eb03c70fa
>>
>> We can easily test that: could you try booting with video=HDMI-A-1:D
>> (or
>> HDMI-A-2, depending on whether you use HDMI0 or HDMI1) and see if it
>> helps?
>
> in kernel 6.1 or kernel 5.17 ?
in 6.1 at least i booted with video=HDMI-A-2:D (i'm plugged into the
hdmi farthest from the power)
and I did see BAD stuff here too:
[drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 0
vc4-drm gpu: bound fe400000.hvs (ops vc4_hvs_ops [vc4])
Registered IR keymap rc-cec
rc rc0: vc4 as /devices/platform/soc/fef00700.hdmi/rc/rc0
input: vc4 as /devices/platform/soc/fef00700.hdmi/rc/rc0/input0
vc4-drm gpu: bound fef00700.hdmi (ops vc4_hdmi_ops [vc4])
[drm] forcing HDMI-A-2 connector on
Registered IR keymap rc-cec
rc rc1: vc4 as /devices/platform/soc/fef05700.hdmi/rc/rc1
input: vc4 as /devices/platform/soc/fef05700.hdmi/rc/rc1/input1
vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_ops [vc4])
vc4-drm gpu: bound fe004000.txp (ops vc4_txp_ops [vc4])
vc4-drm gpu: bound fe206000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fe207000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fe20a000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fe216000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fec12000.pixelvalve (ops vc4_crtc_ops [vc4])
[drm] Initialized vc4 0.0.0 20140616 for gpu on minor 1
EDID block 0 (tag 0x00) checksum is invalid, remainder is 235
[00] BAD 00 ff ff ff ff ff ff 00 36 74 00 00 00 00 00 00
[00] BAD 0b 1f 01 03 00 23 01 78 0a cf 74 a3 57 4c b0 23
[00] BAD 09 48 4c 00 00 00 01 01 01 ff 01 ff ff 01 01 01
[00] BAD 01 01 01 01 01 20 08 e8 00 30 f2 70 5a 80 b0 58
[00] BAD 8a 00 c4 8e 21 00 00 1e 02 3a 80 18 71 38 2d 40
[00] BAD 58 2c 45 00 c4 8e 21 00 00 1e 00 00 00 fc 00 53
[00] BAD 41 4c 4f 52 41 0a 20 20 20 20 20 20 00 00 00 fd
[00] BAD 00 3b 46 1f 8c 3c 00 0a 20 20 20 20 20 20 01 aa
vc4-drm gpu: [drm] Cannot find any crtc or sizes
EDID block 0 (tag 0x00) checksum is invalid, remainder is 125
vc4-drm gpu: [drm] Cannot find any crtc or sizes
a bit puzzling why it does EDID block twice and it's twice checksum
invalid?
I also see forcing connector on.
earlier, i did try to make an edid file from a modeline that worked
on
5.16 and pass it using drm_kms_helper.edid_firmware= ; but that
didn't
work, there only was some kind of warning that i should use something
else...
It always helps to actually quote warnings or errors.
Almost certainly "drm_kms_helper.edid_firmware is deprecated, please
use drm.edid_firmware instead.", in which case do as it tells you and
use "drm.edid_firmware=<filename>".
reading through all your messages, does this mean, that i should be
able
to boot if we were to "fix" this edid file? and pass it? or is this
something that needs change in kernel?
At present you have 2 issues
- the monitor or cable doesn't handle the hotplug line correctly
- the monitor doesn't provide a valid EDID.
The first you can workaround with "video=HDMI-A-2:D".
ok i retried 6.1 (with edid) and without hdmi_hotplug_force=1 and no
rainbow, so i guess that is the reason why this video= parameter is
needed, after all
The second you can work around by capturing the EDID, fixing it, and
then using "drm.edid_firmware=<filename>".
The first fix is to just fixup the checksum (edid-decode even tells
you the correct value as 0xEB). That doesn't solve the fact that the
EDID contains other rubbish like being an analog display which may
cause further issues. The simplest fix for reporting as an analog
display is to change byte 20 from 0x00 to 0x80, and then correct the
checksum again.
The EDID advertises 4k60, 1080p60, and GTF 2288x1432 @ 61Hz.
In order to support 4k60 it needs to support HDMI2.0 and enabling
scrambling via SCDC. That should also be signalled in the EDID Sink
Capability Data Structure block but isn't, so 4k60 support may be
compromised.
Sorry, all of this comes back to the monitor vendor shipping rubbish.
None of this is the fault of the vc4 driver, and it only worked under
5.16 by chance.
Ok, so i changed the EDID based on what you said, but me knowing
nothing:
(since i didn't have the extension data, i removed the extension)...
00 ff ff ff ff ff ff 00 36 74 00 00 00 00 00 00
0b 1f 01 03 80 23 01 78 0a cf 74 a3 57 4c b0 23
09 48 4c 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 08 e8 00 30 f2 70 5a 80 b0 58
8a 00 c4 8e 21 00 00 1e 02 3a 80 18 71 38 2d 40
58 2c 45 00 c4 8e 21 00 00 1e 00 00 00 fc 00 53
41 4c 4f 52 41 0a 20 20 20 20 20 20 00 00 00 fd
00 3b 46 1f 8c 3c 00 0a 20 20 20 20 20 20 00 85
i did this with:
hdmi_enable_4kp60=1
disable_fw_kms_setup=1
hdmi_force_hotplug=1
disable_overscan=1
display_auto_detect=1
arm_boost=1
otg_mode=1
max_framebuffers=2
arm_64bit=1
commandline args:
Kernel command line: coherent_pool=1M 8250.nr_uarts=0
snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1
smsc95xx.macaddr=01:23:34:56:78:9A vc_mem.mem_base=0x3ec00000
vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 rw
ip=eth0:dhcp nameserver=10.A.B.1
root=10.A.B.12:/data/nfs/aarch64/rpi4-mediabox-latest:nfsvers=3
drm.edid_firmware=edid/salora-edid-fix.bin video=HDMI-A-1:D
radeon.runpm=0 splash=silent quiet rootwait
plymouth.ignore-serial-consoles
Unknown kernel command line parameters "nameserver=10.A.B.1
splash=silent", will be passed to user space.
and I have 1080p@60Hz, this is the drm output:
[drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 0
vc4-drm gpu: bound fe400000.hvs (ops vc4_hvs_ops [vc4])
[drm] forcing HDMI-A-1 connector on
Registered IR keymap rc-cec
rc rc0: vc4 as /devices/platform/soc/fef00700.hdmi/rc/rc0
input: vc4 as /devices/platform/soc/fef00700.hdmi/rc/rc0/input0
vc4-drm gpu: bound fef00700.hdmi (ops vc4_hdmi_ops [vc4])
Registered IR keymap rc-cec
rc rc1: vc4 as /devices/platform/soc/fef05700.hdmi/rc/rc1
input: vc4 as /devices/platform/soc/fef05700.hdmi/rc/rc1/input1
vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_ops [vc4])
vc4-drm gpu: bound fe004000.txp (ops vc4_txp_ops [vc4])
vc4-drm gpu: bound fe206000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fe207000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fe20a000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fe216000.pixelvalve (ops vc4_crtc_ops [vc4])
vc4-drm gpu: bound fec12000.pixelvalve (ops vc4_crtc_ops [vc4])
[drm] Initialized vc4 0.0.0 20140616 for gpu on minor 1
[drm] Got external EDID base block and 0 extensions from
"edid/salora-edid-fix.bin" for connector "HDMI-A-1"
vc4-drm gpu: [drm] The core clock cannot reach frequencies high enough
to support 4k @ 60Hz.
vc4-drm gpu: [drm] Please change your config.txt file to add
hdmi_enable_4kp60.
Console: switching to colour frame buffer device 240x67
vc4-drm gpu: [drm] fb0: vc4drmfb frame buffer device
[drm] Got external EDID base block and 0 extensions from
"edid/salora-edid-fix.bin" for connector "HDMI-A-1"
[drm] Got external EDID base block and 0 extensions from
"edid/salora-edid-fix.bin" for connector "HDMI-A-1"
[drm] Got external EDID base block and 0 extensions from
"edid/salora-edid-fix.bin" for connector "HDMI-A-1"
[drm] Got external EDID base block and 0 extensions from
"edid/salora-edid-fix.bin" for connector "HDMI-A-1"
weird that it asks to add the 4kp60, while i had added that? and the
edid also contains that?
do i need to change the edid file further to get 4kp60 ?
[snip]
Thanks in advance,
I donno if this is related or not, but since 6.1 has v3d, i'm assuming
the opengl compositor will be faster and not draw too much cpu?
I did try youtube video, but that on 1080p fullscreen, takes all the CPU
and seems to have dropped frames still?
does rpi4B actually have video decoding hardware? and is this related to
drm? because netflix did not work at all, which requires drm, but is
this a different a different drm than this driver?
Sorry for the maybe unrelated questions, if they are, maybe you can
refer me to somewhere?
