I've now tried a clean(er) install on the system, and still have
this problem. Essentially, what I did was
Download "Fedora Minimal" and write it to the SD card.
Boot up the system in text mode
dnf groupinstall MATE base-x
systemctl set-default graphical-target
After this, I have a similar problem. Somehow the colours don't look quite as bad
this time, but the resolution is clearly not right. xrandr reports
No, wait. The problem is actually intermittent. Sometimes everything works (after a
reboot), and I just found that when it does, I have
We've found the upstream driver, vs the one that is downstream that a
lot of other distros seem to use is quite finicky with some devices, I
would try swapping out your HDMI cable, that has fixed detection
issues for a lot of people.
> $ ls /dev/dri/
> by-path card0 renderD128
> $ ls /sys/class/drm
> card0 card0-HDMI-A-1 renderD128
> card0-Composite-1 card0-Writeback-1 version
> In cases where I get the problem, on the other hand, /dev/dri is missing, and
/sys/class/drm only contains the version file.
> - Toralf
> Screen 0: minimum 1824 x 984, current 1824 x 984, maximum 1824 x 984
> default connected 1824x984+0+0 0mm x 0mm
> 1824x984 77.00
> I'd really like to track this down further to a component the may cause the issue
(or log that could tell me what's wrong), but quite frankly, I don't know where to
start looking. One clue, though, I installed and ran "monitor-edid", and it
> [toralf@lille-hjelper ~]$ sudo monitor-edid
> [toralf@lille-hjelper ~]$
> Yep, that's right. Absolutely nothing. In earlier releases, it has given me
actual data for the display.
> - Toralf
> On 26/03/2020 19:39, Peter Robinson wrote:
> I have a Raspberry Pi 3B running Fedora AAarch connected to my TV.
> After installed the latest version 31 updates, the display went weird on
> me. Monitor preferences list an "unknown" monitor with resolution
> 1824x984 and refresh rate 77 Hz, and colours are all wrong. What should
> be red or orange is blue, blue is red or brown, and I'm not really sure
> what everything else I see on the screen is supposed to look like, but
> the greens may be more or less right.
> Any idea what's going on?
> No, but then I've not ran F-31 on a RPi for a month or two, I tend to
> move to dev releases pretty quickly and don't regularly use desktop
> UXes in testing.
> First question is what updates were applied, the most likely
> candidates are kernel and mesa. If you reboot into the previous kernel
> does it start working again? How long between the updates, was it
> days/weeks/months since you last updated and rebooted?
> I'm using the MATE desktop.
> Custom image? Anything else custom or did you start with
> minimal/workstation/xfce and cross grade?
> If I connect my CentOS 7 laptop to the same HDMI port using the same
> cable, everything seems just fine.
> Well that's a mostly irrelevant comparison because none of the
> software is anywhere near Fedora.
> arm mailing list -- arm(a)lists.fedoraproject.org
> To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
> Fedora Code of Conduct:
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: