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Informative console output over HDMI #148

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opened 2026-02-20 13:21:12 -05:00 by deekerman · 9 comments

deekerman commented

2026-02-20 13:21:12 -05:00

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Originally created by @sharicov on GitHub (Feb 14, 2021).

Originally assigned to: @mdevaev on GitHub.

Could you please show some useful output via Raspberry's HDMI for debugging purposes.
I cannot connect WIFI for some reason, would like to see some info when connecting Raspberry to monitor via HDMI.
For example dmesg or tail -f /ver/log/messages
Thanks in advance

Originally created by @sharicov on GitHub (Feb 14, 2021). Originally assigned to: @mdevaev on GitHub. Could you please show some useful output via Raspberry's HDMI for debugging purposes. I cannot connect WIFI for some reason, would like to see some info when connecting Raspberry to monitor via HDMI. For example dmesg or tail -f /ver/log/messages Thanks in advance

deekerman

2026-02-20 13:21:12 -05:00

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deekerman commented

2026-02-20 13:21:14 -05:00

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@alexsalex commented on GitHub (Feb 14, 2021):

Please, check this: https://github.com/pikvm/pikvm/issues/181

If you want to debug something, please use journalctl tool for logs. dmesg works without any issue.

@alexsalex commented on GitHub (Feb 14, 2021): Please, check this: https://github.com/pikvm/pikvm/issues/181 If you want to debug something, please use journalctl tool for logs. dmesg works without any issue.

deekerman commented

2026-02-20 13:21:14 -05:00

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@mdevaev commented on GitHub (Feb 14, 2021):

Use the keyboard and the raspberry's HDMI output. The usual diagnostic tools will work as described above.

@mdevaev commented on GitHub (Feb 14, 2021): Use the keyboard and the raspberry's HDMI output. The usual diagnostic tools will work as described above.

deekerman commented

2026-02-20 13:21:14 -05:00

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@sharicov commented on GitHub (Feb 15, 2021):

Use the keyboard and the raspberry's HDMI output. The usual diagnostic tools will work as described above.
Thanks for quick responce,
The problem is, keyboard didn't work for me when connected it directly to my raspberry zero W's USB (tried two working keyboards). Very strange.

@sharicov commented on GitHub (Feb 15, 2021): > Use the keyboard and the raspberry's HDMI output. The usual diagnostic tools will work as described above. Thanks for quick responce, The problem is, keyboard didn't work for me when connected it directly to my raspberry zero W's USB (tried two working keyboards). Very strange.

deekerman commented

2026-02-20 13:21:14 -05:00

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@prepperdev commented on GitHub (Feb 15, 2021):

Just my 2 cents: Raspberry Pi Zero W is an extremely flaky device. It costs less than a "real" Pi, but then it keeps charging you by being uncooperative.

@prepperdev commented on GitHub (Feb 15, 2021): Just my 2 cents: Raspberry Pi Zero W is an extremely flaky device. It costs less than a "real" Pi, but then it keeps charging you by being uncooperative.

deekerman commented

2026-02-20 13:21:14 -05:00

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@sharicov commented on GitHub (Feb 15, 2021):

It has it's advantages though, consuming less battery, much more compact, disposable for it's cost...

@sharicov commented on GitHub (Feb 15, 2021): It has it's advantages though, consuming less battery, much more compact, disposable for it's cost...

deekerman commented

2026-02-20 13:21:14 -05:00

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@mdevaev commented on GitHub (Feb 15, 2021):

For zero, you will have to disable usb otg to make the keyboard work. You can also buy a USB UART adapter and use it, it is a reliable solution.

But I recommend using pi4. I can't physically create a miracle for you from one USB controller and one core.

@mdevaev commented on GitHub (Feb 15, 2021): For zero, you will have to disable usb otg to make the keyboard work. You can also buy a USB UART adapter and use it, it is a reliable solution. But I recommend using pi4. I can't physically create a miracle for you from one USB controller and one core.

deekerman commented

2026-02-20 13:21:15 -05:00

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@sharicov commented on GitHub (Feb 15, 2021):

Understood, thanks!
How do I disable OTG?
Also brings me back to issue 187 I had open (https://github.com/pikvm/pikvm/issues/187) how can I connect bluetooth keyboard (mouse)?

@sharicov commented on GitHub (Feb 15, 2021): Understood, thanks! How do I disable OTG? Also brings me back to issue 187 I had open (https://github.com/pikvm/pikvm/issues/187) how can I connect bluetooth keyboard (mouse)?

deekerman commented

2026-02-20 13:21:15 -05:00

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@mdevaev commented on GitHub (Feb 15, 2021):

Edit /boot/config.txt on the first sd card partition and comment line with dwc2. Just keep in mind that after this, the web interface will stop working.

@mdevaev commented on GitHub (Feb 15, 2021): Edit `/boot/config.txt` on the first sd card partition and comment line with `dwc2`. Just keep in mind that after this, the web interface will stop working.

deekerman commented

2026-02-20 13:21:15 -05:00

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@sharicov commented on GitHub (Feb 15, 2021):

Thank you very much, you are doing a great job with this project!

@sharicov commented on GitHub (Feb 15, 2021): Thank you very much, you are doing a great job with this project!

deekerman referenced this issue

2026-02-20 13:24:24 -05:00

Add option to download .iso file from internet #305