On 04/04/2020 11:38, Toralf Lund wrote:
I've now tried a clean(er) install on the system, and still have
problem. Essentially, what I did was
1. Download "Fedora Minimal" and write it to the SD card.
2. Boot up the system in text mode
3. dnf groupinstall MATE base-x
4. 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.
No, wait. The problem is actually intermittent. Sometimes everything
works (after a reboot), and I just found that when it does, I have
$ 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.
Screen 0: minimum 1824 x 984, current 1824 x 984, maximum 1824 x 984
default connected 1824x984+0+0 0mm x 0mm
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 said:
[toralf@lille-hjelper ~]$ sudo monitor-edid
Yep, that's right. Absolutely nothing. In earlier releases, it has
given me actual data for the display.
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.