Description of problem: I have a brand new Lenovo ThinkPad X390 Yoga. I installed Fedora 32 and it all seemed fine until I first tried tablet mode. The screen rotation is basically broken. Note, yes, I did check rotation wasn't locked in GNOME! There's some more info here: https://forums.fedoraforum.org/showthread.php?323834-Accelerometer-not-working-software-problem-or-broken-hardware There's very little output, even when using 'monitor-sensor' in a terminal to see what's going on. It's like the rotation events are simply not detected at all most of the time. Then suddenly it picks up an event, rotates and the screen is stuck like that. You have to keep tilting and eventually it notices and rotates back the way it's supposed to be, but all the while you're doing this there's no output from monitor-sensor, until the actual rotate event - then everything appears normal. I had bought the machine because it is Ubuntu certified for 18.04 LTS, so I decided to try a live USB of the latest Ubuntu (20.04 TLS) and, curiously, it has the exact same problem as Fedora 32. I then tried a live USB of Ubuntu 18.04 LTS aaaaand... the laptop functions perfectly! Screen rotation in tablet mode or otherwise is snappy and perfect. So it seems *something* broke, either between kernel versions 4.x and 5.x or in the iio-sensor-proxy package itself? I'm happy to provide more info for debugging, but I have no idea where to start so I'd need some guidance from the maintainers as to what logs/output is useful. In any case, this is definitely a recent issue as older versions of Ubuntu work, and I haven't tried but I suspect it might be fine with Fedora 29 (kernel 4.18) as well? Version-Release number of selected component (if applicable): Installed Packages Name : iio-sensor-proxy Version : 3.0 Release : 1.fc32 Architecture : x86_64 Size : 135 k Source : iio-sensor-proxy-3.0-1.fc32.src.rpm Repository : @System From repo : fedora Summary : IIO accelerometer sensor to input device proxy URL : https://github.com/hadess/iio-sensor-proxy License : GPLv3+ Description : IIO accelerometer sensor to input device proxy. How reproducible: It happens every time with the right hardware and Fedora 32. Steps to Reproduce: 1. Buy or borrow a ThinkPad X390 Yoga 2. Install standard 64 bit Fedora 32 Desktop on it 3. Try to tilt the computer and note the screen doesn't rotate! Actual results: Rotation mostly doesn't happen, but does sometimes randomly work for one or two rotations, then it stops working again. Expected results: Screen rotates smoothly and rapidly, just as it does with Ubuntu 18.04 LTS. Additional info: Upstream repo seems to be here - I'll raise an issue there too: https://gitlab.freedesktop.org/hadess/iio-sensor-proxy/-/issues
The system works with a Fedora 31 live USB: Installed Packages Name : iio-sensor-proxy Version : 2.8 Release : 1.fc31 Architecture : x86_64 Size : 131 k Source : iio-sensor-proxy-2.8-1.fc31.src.rpm Repository : @System From repo : anaconda Summary : IIO accelerometer sensor to input device proxy URL : https://github.com/hadess/iio-sensor-proxy License : GPLv3+ Description : IIO accelerometer sensor to input device proxy. Will double check with a Fedora 32 live USB tomorrow to make sure it definitely doesn't work with a "clean" install. Assuming that's the case, I'll reinstall the system with Fedora 31 and see what happens when I upgrade iio-sensor-proxy, as I see there is a 3.0 release in the Fedora 31 updates repo. If 2.8 -> 3.0 breaks things in Fedora 31, we're pretty close to a smoking gun. I'll let you know.
Alright, so this is really weird. Tried a live USB of Fedora 32 and it was fine, checked the package info and there's been no update, rebooted the machine using the installed Fedora 32 on the disk and it now works fine! So whatever it is, it seems to manifest after the machine has been on for a while. I'll have to do more testing to reproduce consistently. :-(
Screen rotation no longer works on Acer Spin 1. I think that it stopped when I upgraded to Fedora 33. This computer is using Gnome 3.38.2 (version of gnome-shell) I suspect that it is this bug https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3255 See also https://askubuntu.com/questions/1290780/gnome-3-38-doesnt-rotates-screen-automatically
Re comment 3: It turns out that screen rotation works, but only when you fold the keyboard behind the screen ("tablet mode"). This ia a new behaviour. Although it makes sense, it isn't what I'd like.
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