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Thread: HDMI config problems after Raspberry Pi TW 4.15.13 -> 4.16.6 update

  1. #1
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    Default HDMI config problems after Raspberry Pi TW 4.15.13 -> 4.16.6 update

    I just updated Tumbleweed from 4.15.3 -> 4.16.6 on my Raspberry Pi 3B (not +), and I found that the HDMI settings are incorrect: 3-4 characters are lost off the left side of the screen, and several lines are lost at the beginning. (Was working fine on 4.15.3.) Looking at the /boot/efi/config.txt files (which was changed between releases), I see that there are driver changes but no obvious changes in HDMI parameters that I could tinker with.

    This seems to be an issue only when booting in multi-user mode. Starting XFCE, the windows seem to come up just fine with no missing parts on the menu bars or icons.

    I copied the following config.txt settings from Raspbian's config.txt boot file and inserted them right after the "dtoverlay=rpi3-hdmi" setting in TW 4.16.6:
    Code:
    hdmi_force_hotplug=1
    config_hdmi_boost=4
    overscan_left=24
    overscan_right=24
    overscan_top=16
    overscan_bottom=16
    disable_overscan=0
    but the HDMI behavior in multi-user mode didn't change (not surprising, but I had hoped that fixing it would be just that simple).

    I referred to the site referenced in the config.txt header, "https://www.raspberrypi.org/documentation/configuration/config-txt/README.md" and the video settings it cites, and so I also tried "hdmi_safe=1". While that resulted in REALLY BIG letters during initial boot, the login screen was similarly cut off on the left.

    Any suggestions where else I might look or settings I should change? It appears to be an issue with rpi3-hdmi, but I can't find documentation on how to change its settings.

    This is only a minor nuisance, but as I frequently run in multi-user mode, I'd like to fix it for myself. In general, the graphical support in XFCE seems faster and the system more responsive. Whoever's doing this work: Nice job!

  2. #2
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    Default Re: HDMI config problems after Raspberry Pi TW 4.15.13 -> 4.16.6 update

    Quote Originally Posted by hdtodd View Post
    I just updated Tumbleweed from 4.15.3 -> 4.16.6 on my Raspberry Pi 3B (not +), and I found that the HDMI settings are incorrect: 3-4 characters are lost off the left side of the screen, and several lines are lost at the beginning. (Was working fine on 4.15.3.) Looking at the /boot/efi/config.txt files (which was changed between releases), I see that there are driver changes but no obvious changes in HDMI parameters that I could tinker with.

    This seems to be an issue only when booting in multi-user mode. Starting XFCE, the windows seem to come up just fine with no missing parts on the menu bars or icons.

    I copied the following config.txt settings from Raspbian's config.txt boot file and inserted them right after the "dtoverlay=rpi3-hdmi" setting in TW 4.16.6:
    Code:
    hdmi_force_hotplug=1
    config_hdmi_boost=4
    overscan_left=24
    overscan_right=24
    overscan_top=16
    overscan_bottom=16
    disable_overscan=0
    but the HDMI behavior in multi-user mode didn't change (not surprising, but I had hoped that fixing it would be just that simple).

    I referred to the site referenced in the config.txt header, "https://www.raspberrypi.org/documentation/configuration/config-txt/README.md" and the video settings it cites, and so I also tried "hdmi_safe=1". While that resulted in REALLY BIG letters during initial boot, the login screen was similarly cut off on the left.

    Any suggestions where else I might look or settings I should change? It appears to be an issue with rpi3-hdmi, but I can't find documentation on how to change its settings.

    This is only a minor nuisance, but as I frequently run in multi-user mode, I'd like to fix it for myself. In general, the graphical support in XFCE seems faster and the system more responsive. Whoever's doing this work: Nice job!
    Hi
    So is this HDMI->HDMI, HDMI->VGA, HDMI->DVI? What resolutions?
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  3. #3
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    Default Re: HDMI config problems after Raspberry Pi TW 4.15.13 -> 4.16.6 update

    Quote Originally Posted by malcolmlewis View Post
    Hi
    So is this HDMI->HDMI, HDMI->VGA, HDMI->DVI? What resolutions?
    Hi, Malcolm!

    It's 1920x1280, HDMI-HDMI. The display works fine in multiuser/CLI mode, and the XFCE GUI has no problems (as far as I can tell so far). But if I boot in multiuser mode rather than graphical mode (systemctl set-default), the left and bottom of the screen are off the display by 3-4 characters. This just appeared when I did the 4.15.13 -> 4.16.6 upgrade (been busy so didn't do any intermediates, if there were any). It was working fine in 4.15.13. The improvements in graphics seem worth the minor nuisance, but I wouldn't mind getting it set for multiuser (CLI) mode if I can find out what to fiddle with.

    David
    Last edited by hdtodd; 08-May-2018 at 11:00. Reason: typo in version #

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