They are probably lucky enough that their screens happen to work despite this bug.
It’ll be interesting if we find out what is the difference between working screens and non-working screens when it’s been found.
After apt upgrade the screen gui doesnt start
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no I haven’t, I have only a classic asus hdmi monitor 1080p
but as I wrote before I’m pretty sure that the hardware is not the problem
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No your screen is fine.
As I mentioned earler I have a screen that works just fine with 5.10.66 and 5.10.72 based builds, but I have not been able to get it to light up with any 5.10.110 based build (Armbian, Debian, or other sources).
I can even see that the EDID negotiation works ok in one of the log files (dont have the name in front of me now) if I ssh into the computer or use a second screen.
My newer Dell screen works with all the 5.10 based kernels I’ve tried, but not with any 6.x kernels.
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I think that this is unacceptable, it cannot be reduced to a matter of luck.
Here is the output from xrandr --verbose with my two screens connected.
HDMI-1 is the screen thats always black, and HDMI-2 is working.
xrandr --verbose
Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 16384 x 16384
HDMI-1 connected primary 1920x1080+2560+0 (0x49) normal (normal left inverted right x axis y axis) 477mm x 268mm
Identifier: 0x42
Timestamp: 373031
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff0009d15f7845540000
2f13010380351d782e6085a6564a9c25
125054a56b80710081c081408180a9c0
b300d1c00101023a801871382d40582c
4500dd0c1100001e000000ff00414239
3037373132534c303030000000fd0032
4c185311000a202020202020000000fc
0047323432304844424c0a0a0a0a00e5
hue: 50
range: (0, 100)
saturation: 50
range: (0, 100)
contrast: 50
range: (0, 100)
brightness: 50
range: (0, 100)
Colorspace: Default
supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
output_type_capacity: DVI
supported: DVI, HDMI
output_hdmi_dvi: auto
supported: auto, force_hdmi, force_dvi
allm_enable: disable
supported: disable, enable
allm_capacity: 0
range: (0, 1)
USER_SPLIT_MODE: 0
range: (0, 1)
color_format_caps: 1
range: (0, 15)
color_depth_caps: 1
range: (0, 255)
color_format: ycbcr444
supported: rgb, ycbcr444, ycbcr422, ycbcr420, ycbcr_high_subsampling, ycbcr_low_subsampling, invalid_output
color_depth: 24bit
supported: Automatic, 24bit, 30bit
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 197
supported: 197
non-desktop: 0
range: (0, 1)
1920x1080 (0x49) 148.500MHz +HSync +VSync *current +preferred
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1680x1050 (0x556) 119.000MHz +HSync -VSync
h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
1600x900 (0x557) 108.000MHz +HSync +VSync
h: width 1600 start 1624 end 1704 total 1800 skew 0 clock 60.00KHz
v: height 900 start 901 end 904 total 1000 clock 60.00Hz
1280x1024 (0x50) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x51) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1280x960 (0x558) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1152x864 (0x52) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1280x720 (0x53) 74.250MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1024x768 (0x56) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x57) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
832x624 (0x559) 57.284MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
v: height 624 start 625 end 628 total 667 clock 74.55Hz
800x600 (0x58) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x59) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
640x480 (0x60) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x62) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x400 (0x63) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
HDMI-2 connected 2560x1440+0+0 (0x46) normal (normal left inverted right x axis y axis) 597mm x 336mm
Identifier: 0x43
Timestamp: 373031
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 1
CRTCs: 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff0010ac2f4255504742
0c200103803c2278eeee95a3544c9926
0f5054a54b00714f8180a940d1c00101
010101010101565e00a0a0a029503020
350055502100001a000000ff00465153
4c3848330a2020202020000000fc0044
454c4c205532373232440a20000000fd
00314c1e5a19000a2020202020200125
020324f14f9005040302071601061112
1513141f23097f078301000067030c00
1000383c023a801871382d40582c4500
55502100001e7e3900a080381f403020
3a0055502100001a011d007251d01e20
6e28550055502100001ebf1600a08038
134030203a0055502100001a00000000
00000000000000000000000000000010
hue: 50
range: (0, 100)
saturation: 50
range: (0, 100)
contrast: 50
range: (0, 100)
brightness: 50
range: (0, 100)
Colorspace: Default
supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
output_type_capacity: HDMI
supported: DVI, HDMI
output_hdmi_dvi: auto
supported: auto, force_hdmi, force_dvi
allm_enable: disable
supported: disable, enable
allm_capacity: 0
range: (0, 1)
USER_SPLIT_MODE: 0
range: (0, 1)
color_format_caps: 7
range: (0, 15)
color_depth_caps: 7
range: (0, 255)
color_format: ycbcr444
supported: rgb, ycbcr444, ycbcr422, ycbcr420, ycbcr_high_subsampling, ycbcr_low_subsampling, invalid_output
color_depth: 24bit
supported: Automatic, 24bit, 30bit
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 211
supported: 211
non-desktop: 0
range: (0, 1)
2560x1440 (0x46) 241.500MHz +HSync -VSync *current +preferred
h: width 2560 start 2608 end 2640 total 2720 skew 0 clock 88.79KHz
v: height 1440 start 1443 end 1448 total 1481 clock 59.95Hz
2048x1080 (0x47) 147.180MHz +HSync -VSync
h: width 2048 start 2096 end 2128 total 2208 skew 0 clock 66.66KHz
v: height 1080 start 1083 end 1093 total 1111 clock 60.00Hz
2048x1080 (0x48) 58.230MHz +HSync -VSync
h: width 2048 start 2096 end 2128 total 2208 skew 0 clock 26.37KHz
v: height 1080 start 1083 end 1093 total 1099 clock 24.00Hz
1920x1080 (0x49) 148.500MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x4a) 148.500MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
1920x1080 (0x4b) 148.352MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1920x1080i (0x4c) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
v: height 1080 start 1084 end 1094 total 1125 clock 60.00Hz
1920x1080i (0x4d) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1094 total 1125 clock 50.00Hz
1920x1080i (0x4e) 74.176MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1094 total 1125 clock 59.94Hz
1600x1200 (0x4f) 162.000MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
1280x1024 (0x50) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x51) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1152x864 (0x52) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1280x720 (0x53) 74.250MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1280x720 (0x54) 74.250MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
v: height 720 start 725 end 730 total 750 clock 50.00Hz
1280x720 (0x55) 74.176MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
v: height 720 start 725 end 730 total 750 clock 59.94Hz
1024x768 (0x56) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x57) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x58) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x59) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
720x576 (0x5a) 27.000MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
v: height 576 start 581 end 586 total 625 clock 50.00Hz
720x576i (0x5b) 13.500MHz -HSync -VSync Interlace
h: width 720 start 732 end 795 total 864 skew 0 clock 15.62KHz
v: height 576 start 580 end 586 total 625 clock 50.00Hz
720x480 (0x5c) 27.027MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
v: height 480 start 489 end 495 total 525 clock 60.00Hz
720x480 (0x5d) 27.000MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
v: height 480 start 489 end 495 total 525 clock 59.94Hz
720x480i (0x5e) 13.514MHz -HSync -VSync Interlace
h: width 720 start 739 end 801 total 858 skew 0 clock 15.75KHz
v: height 480 start 488 end 494 total 525 clock 60.00Hz
720x480i (0x5f) 13.500MHz -HSync -VSync Interlace
h: width 720 start 739 end 801 total 858 skew 0 clock 15.73KHz
v: height 480 start 488 end 494 total 525 clock 59.94Hz
640x480 (0x60) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x61) 25.200MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
v: height 480 start 490 end 492 total 525 clock 60.00Hz
640x480 (0x62) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x400 (0x63) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
DP-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x44
Timestamp: 373031
Subpixel: unknown
Clones:
CRTCs: 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
hue: 50
range: (0, 100)
saturation: 50
range: (0, 100)
contrast: 50
range: (0, 100)
brightness: 50
range: (0, 100)
color_format_caps: 0
range: (0, 64)
color_depth_caps: 1
range: (0, 256)
color_format: rgb
supported: rgb, ycbcr444, ycbcr422, ycbcr420
color_depth: Automatic
supported: Automatic, 18bit, 24bit, 30bit
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 225
supported: 225
non-desktop: 0
range: (0, 1)
I’ve experienced the same video issues. First blaming on PS, I’ve tried several with no success. I tried the 23.05.0.0070 Armbian image, fails to boot, indicates a missing UUID. Same with the current 23.05.0.0078 image.
Seeing this thread, sounds similar. In my case, initial boot is fine in Armbian or Ubuntu server. Install Ubuntu desktop, no video, ssh is fine. I realized that the issue is not with X, happens in the initial apt update && apt upgrade. I usually don’t reboot after that, just install the desktop.
I am running a 1650x1080 monitor, I have 2 Dell (228, 2210), same result. I try on my 2k desktop monitor, same results.I’ve seen another thread that for 2k monitor support, must generate a template. Indications are 1920x1200 is the same. I will roll back to Ubuntu server and give that a try. Unfortunately, I don’t have a 1080p monitor unless I “borrow” my wife or daughter’s monitors. They would not be pleased. I can see the monitor detection and supported mode list, just can’t “light up”.
Puzzled by this issue, I’ve used Rasbian and Ubuntu for years on Raspberry Pi. Other than the occasional config file change, never a monitor detection issue. Starting with Ubuntu server then loading a desktop has been my daily driver for decades, just works. Even if after a drive failure, I decided to go with a very glitchy Ubuntu 22.04.0 rev. A few days to work out kinks, after 22.04.2, a rock. Never used a Mali GPU, something with the drivers??? That a console upgrade, pre-X11 is knocking out the display is unusual.
I’ve scripted many of the install steps. Comes from being an Automator by trader…
I too have this exact issue, tried all the noob things to get it to work.
I have a 1650x1080 Dell monitor using HDMI to DVI-D, no issue at all then as soon as something is updated it all over. Android on it runs fine.
If you find a fix please share it in here, I am using remote desktop / a dodgy aliexpress catpure card and OBS till then.
If you have X running, I don’t currently - Wiping and restoring too many times:
sudo chmod 0777 /sys/class/drm/card0-HDMI-A-1/status
echo on > /sys/class/drm/card0-HDMI-A-1/status
unplug the hdmi cable and reinsert.
The monitor should no longer be in sleep mode. Is there a display image? This change will reset on a reboot. Might be able to add to sudo vi /etc/rc.local? My issue is a pain to troubleshoot. Some commands must be run from the console. Hard, but not impossible, when there is no display.
The 2k thread:
Maybe different issues, maybe connected. We are going in loops.
After several more variations and rebuilds, I’ve made progress. The lines above, do wake the monitor - must reconnect. What I’ve gotten consistently:
- echo DISPLAY:
No output - xrandr:
Output: No display
Xorg Log shows correct modeset detection for HDMI0
[ 9.012] (II) modeset(0): h_active: 1680 h_sync: 1728 h_sync_end 1760 h_blank_end 1840 h_border: 0
[ 9.012] (II) modeset(0): v_active: 1050 v_sync: 1053 v_sync_end 1059 v_blanking: 1080 v_border: 0
[ 9.012] (II) modeset(0): Serial No: H857F857029M
[ 9.013] (II) modeset(0): Ranges: V min: 56 V max: 75 Hz, H min: 30 H max: 83 kHz, PixClock max 145 MHz
[ 9.013] (II) modeset(0): Monitor name: DELL E228WFP
[ 9.013] (II) modeset(0): EDID (in hex):
[ 9.013] (II) modeset(0): 00ffffffffffff0010ac15d04d393230
[ 9.013] (II) modeset(0): 13120103802f1e78ee8f30a355499827
[ 9.013] (II) modeset(0): 145054a54b00714f8180010101010101
[ 9.014] (II) modeset(0): 0101010101017c2e90a0601a1e403020
[ 9.014] (II) modeset(0): 3600d9281100001a000000ff00483835
[ 9.014] (II) modeset(0): 37463835373032394d0a000000fd0038
[ 9.014] (II) modeset(0): 4b1e530e000a202020202020000000fc
[ 9.014] (II) modeset(0): 0044454c4c20453232385746500a00e4
[ 9.015] (II) modeset(0): Printing probed modes for output HDMI-1
[ 9.015] (II) modeset(0): Modeline "1680x1050"x59.9 119.00 1680 1728 1760 1840 1050 1053 1059 1080 +hsync -vsync (64.7 kHz eP)
[ 9.015] (II) modeset(0): Modeline "1280x1024"x75.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[ 9.015] (II) modeset(0): Modeline "1280x1024"x60.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[ 9.015] (II) modeset(0): Modeline "1152x864"x75.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e)
[ 9.015] (II) modeset(0): Modeline "1024x768"x75.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz e)
[ 9.015] (II) modeset(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
[ 9.016] (II) modeset(0): Modeline "800x600"x75.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e)
[ 9.016] (II) modeset(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
[ 9.016] (II) modeset(0): Modeline "640x480"x75.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e)
[ 9.016] (II) modeset(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
[ 9.030] (II) modeset(0): Modeline "720x400"x70.1 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e)
Began looking into: /etc/X11/xorg.conf.d/20-modesetting.conf
After trial and error (My Dell customizations probably not needed), I can across something not in the file:
Section “ServerLayout”
Identifier “Layout0”
screen 0 “Default Screen” 0 0
EndSection
Must match:
Section “Screen”
Identifier “Default Screen”
with ssh -Y session, “echo $DISPLAY”:
output: 10.0
Xrandr now shows results, even if 2k.
HDMI-0 connected 2560x1440+5120+0 (normal left inverted right x axis y axis) 708mm x 399mm
2560x1440 59.95*+ 74.92
1920x1200 59.88
1920x1080 60.00 59.94 50.00
1680x1050 59.95
1600x1200 60.00
1600x900 60.00
1440x900 59.89
1280x1024 60.02
1280x720 60.00 59.94 50.00
1024x768 60.00
800x600 60.32
720x576 50.00
720x480 59.94
640x480 59.94 59.93
At least, a display is detected and 1650x1080 is detected. Even if ignoring my configuration:
Section “Monitor”
Identifier “Dell Monitor”
Option “Rotate” “normal”
Vendorname “Generic LCD Display”
Modelname “Dell 228 1680x1050”
Option “PreferredMode” "1680x1050@60
Horizsync 30 - 81
Vertrefresh 56.0 - 75.0
I’ve done a lot of EDID integration in the past, a blank screen is normal if the display mode is not compatible with the monitor. Will do more digging in the Xorg specs to determine the correct setting. Mucking around with Xorg is always fun 
I’ve done a number of tests on Ubuntu 20.04 and 22.04. The CLI works fine in 20.04, but I can’t add the panfrost ppa. Complains no target. I dist upgrade to 22.04, ppa loads without issue. However, even before I install a desktop, I lose the console. Something in an upgrade is breaking the console. I install the desktop, Xorg log shows the 1680x1050 monitor is detected fine, just no output. I’ve tried removing updates, at least until something breaks then I reflash and start again. Armbian starts at 22.04, as soon as I upgrade, it breaks the console!
I looked at other distros, decided to try debian. Loads with X, comes up fine. Even if it doesn’t detect full res, I started suspecting something there. I did apt grade and rebooted, broke! So what changed? Many things, easiest to check, kernel because it worked in the UI before I upgraded. looking in /boot/extlinux.conf, tried enabling the boot menu but no response on the monitor. So I disable the entire new kernel.
The Debian UI on the monitor is now back!!!
Original kernel version: 5.10.66.27 - display works
Current kernel version: 5.10.110.37 - no display
Something broke after the original image was released. Sometimes affects 1920x1080, more frequently affects lower resolutions. I’ve been told this issue was power, I’ve tried multiple supplies, nothing fixed. I even bought an Anker supply in the supported this, nothing but a boot loop!
I’ve done a little research and have found other mentions of display issues with 5.10.x kernels. There is mention that some of the newer 6.x kernels show the fix. I tried one, I did get a display but abended. I don’t know enough about the Rock 5 kernel to build my own kernel. I may look into this route if I have time. Been 25 years since I’ve built a Linux kernel from scratch. In the meantime, Debian works if you don’t upgrade the kernel.
Video usually just works 
I can now add that this image
lights up my failing screen, but only when I connect it to HDMI-2 (closest to USB). If I connect it to HDMI-1 it’s black still.
Me too with ubuntu, same issue on my Auss old monitor 1080p. So I had the opportunity to test ubuntu upgrated at 22.04 (all updated) with another monitor, more recent, an Benq 1080p and… surprise! It works!
This test after three different PD tests… very strange problem.
After that I tried to configure panfrost ppa and firmware to use mali drivers: the boot is ok, the screeen to, but a blank screen appear with a message like “something was wrong”.
I am using a Dell E2009W @ 1680 x 1050 via HDMI to DVI-D cable. Exact same issues as OP, exact…
1 thing I can add is on android and openfyde OS it works perfectly. I have tried “all the things” but I am no linux prodigy.
Just wanted to say Godspeed and I am rooting for you to figure this out. Until then I am using a $15 ali-express special HDMI catpure card and I hate it. lol
Not sure if this will apply, but in testing various distros, I installed a valhalla graphics driver that resulted in a blank screen: libmali-valhall-g610-g6p0-x11
I removed this via a virtual console, killed the X proccess, and things were all good again.
To query if that’s installed, review:
apt list --installed | grep libmali-valhall-g610-g6p0-x11
If that doesn’t do it, see what was installed in the update and either reinstall or remove those packages:
grep " install " /var/log/dpkg.log
Here’s hoping!
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I have been using clean installs, so no valhalla drivers in my case. It’s just that the signal that is sent to one of my screens isn’t lighting up the screen, although the HDMI EDID negotiatuion has succeeded.
Also, I tried doing apt update && apt upgrade from the kernel 6.2.0_rc1 build linked above, but that actually downgraded the kernel to 5.10.110 so then I was back at square one again 
I have now learned that I can build an Armbian build that works better than the ones that I can download with my HDMI screens.
I have an Armbian code tree on my Debian 11 x64 machine. I have checked out the main branch and updated to latest this week.
If I build an image using this command
./compile.sh BOARD=rock-5b BRANCH=legacy RELEASE=jammy COMPRESS_OUTPUTIMAGE=img KERNEL_CONFIGURE=no BUILD_MINIMAL=yes BUILD_DESKTOP
it lights up both my screens nicely (but only if I have my older screen connected to the HDMI-2 connector).
If I on the other hand download the latest similar trunk build from Jammy and legacy kernel
My older screen stays black even when connected to HDMI-2.
This seems strange to me…
Edit: I now see that the diff between the Armbian main branch and the trunk.254 label is quite large. It does include something that to me looks like they could have changed the 5.10.110 kernel to another build.