Ioan Bogdan Veringioiu

Hi, I can confirm that the mentioned patch is breaking another display i am using: $ xrandr Screen 0: minimum 320 x 200, current 640 x 480, maximum 4096 x 4096 HDMI-1 connected primary 640x480+0+0 (normal left inverted right x axis y axis) 400mm x 300mm 640x480 60.05* 75.00 72.81 66.67 60.00 59.94 720x400 70.08 This is a LVDS panel using a LVDS to HDMI convertor. I am seeing also the same kind of error: [ 28.408594] rockchip_rk3066_pll_set_rate: Invalid rate : 33290000 for pll clk pll_npll Using the kernel built without clk-rockchip-max-frac-divider.patch makes the display work.

Hello, I believe I found the problematic patch which is messing my display: patch/kernel/archive/rockchip-6.6/patches.armbian/clk-rockchip-max-frac-divider.patch This patch adds the code that generates this pll_set_rate error. I have removed it from patches directory and rebuilt the kernel. The system booted fine (no video kernel param) and Xorg started fine (without extra modelines). I will test this kernel with other displays I have around to make sure it works. Do you know something about the patch above ? Thanks

Hi, thanks, I booted the kernel you build but no change. However, using your advice with the video kernel param, i got the following results: 1) First, without any intervention here's what Xorg says about the screen: [ 16.605] (II) modeset(0): Printing probed modes for output HDMI-1 [ 16.605] (II) modeset(0): Modeline "800x480"x65.7 32.00 800 840 888 928 480 493 496 525 -hsync -vsync (34.5 kHz eP) [ 16.605] (II) modeset(0): Output HDMI-1 connected [ 16.605] (II) modeset(0): Using exact sizes for initial modes [ 16.605] (II) modeset(0): Output HDMI-1 using initial mode 800x480 +0+0 The EDID looks OK, the Modeline is read and applied (according to Xorg), but screen is black. xrandr --verbose shows the following: 800x480 (0x42) 32.000MHz -HSync -VSync *current +preferred h: width 800 start 840 end 888 total 928 skew 0 clock 34.48KHz v: height 480 start 493 end 496 total 525 clock 65.68Hz 2) Using video=HDMI-A-1:800x480@65D as kernel param, I indeed get a framebuffer, I see the kernel + systemd booting, all good. However, when Xorg starts, screen goes black. Note that I used 65 for refresh rate instead of 60 just to use what the EDID is delivering. xrandr --verbose now shows: 800x480 (0x42) 32.000MHz -HSync -VSync *current +preferred h: width 800 start 840 end 888 total 928 skew 0 clock 34.48KHz v: height 480 start 493 end 496 total 525 clock 65.68Hz 800x480 (0x43) 32.691MHz -HSync +VSync h: width 800 start 824 end 904 total 1008 skew 0 clock 32.43KHz v: height 480 start 481 end 484 total 499 clock 64.99Hz There is a second mode shown now. 3) If I force this new mode now, using the following xorg.conf Section "Monitor" Identifier "HDMI-1" Modeline "800x480_65.0" 32.69 800 824 904 1008 480 481 484 499 -hsync +vsync Option "PreferredMode" "800x480_65.0" EndSection then Xorg is also working. Now I see the following dmesg errors: [ 17.456578] rockchip_rk3066_pll_set_rate: Invalid rate : 32690000 for pll clk pll_npll Waiting on your thoughts on this. Thanks

Thank you. If I can help in any way let me know.

I am also suspecting one of the applied patches, but don't know which. I have today booted libreelec distro (kernel 6.6) and the display worked, so not sure what is causing the issue in armbian. https://releases.libreelec.tv/LibreELEC-RK3288.arm-12.0.1-tinker.img.gz

Hi, thanks for answering. What I tried: - Official armbian image for tinker: Bookworm desktop xfce, kernel 6.6 https://dl.armbian.com/tinkerboard/Bookworm_current_xfce This does not work. Bootloader shows, then kernel boots and screen goes blank. Backlight is on. Ssh works. - Official asus image from here (based on Debian 10, kernel 4.4): https://tinker-board.asus.com/download-list.html?product=tinker-board-r2 This works, but it is not an option for me as debian buster is too old. Any ideas what I could try? Thanks

Hello, the latest armbian image (Bookworm_current_xfce) with kernel 6.6 has issues with the winstar tftp 5 inch hdmi display that I am using. Bootloader (u-boot) is showing but after loading the kernel message, screen goes blank. The screen resolution is 800x480, in attach the pdf specs. Info: the official asus image with kernel 4.4 works, but it is not an option for me as I don't want to use debian buster. Please help. Thank you very much. Bogdan WF50FSYFGDHNV.pdf