| Summary: | evdev doesn't enumerate input devices at xserver startup. | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Pawel Sikora <pawel_sikora> | ||||||||||||||
| Component: | Input/evdev | Assignee: | Peter Hutterer <peter.hutterer> | ||||||||||||||
| Status: | RESOLVED NOTOURBUG | QA Contact: | Xorg Project Team <xorg-team> | ||||||||||||||
| Severity: | blocker | ||||||||||||||||
| Priority: | medium | ||||||||||||||||
| Version: | unspecified | ||||||||||||||||
| Hardware: | x86-64 (AMD64) | ||||||||||||||||
| OS: | Linux (All) | ||||||||||||||||
| Whiteboard: | |||||||||||||||||
| i915 platform: | i915 features: | ||||||||||||||||
| Attachments: |
|
||||||||||||||||
fwiw, evdev doesn't enumerate devices. without an Xorg.log + xorg.conf it's hard to see what's going on but my guess is that you either have a configuration error or the driver/server ABI mismatch. the latter can be fixed by rebuilding the drivers. Created attachment 51383 [details]
xserver configuration
Created attachment 51384 [details]
xserver log
Created attachment 51385 [details]
dmesg log
(In reply to comment #1) > fwiw, evdev doesn't enumerate devices. without an Xorg.log + xorg.conf it's > hard to see what's going on but my guess is that you either have a > configuration error or the driver/server ABI mismatch. the latter can be fixed > by rebuilding the drivers. as you can see in dmesg log all devices (ps2+usb) were detected and work fine in console mode. the xserver was started at ~242nd second with dead inputs. at ~253rd second the rmmod/modprobe-usbhid hack was applied and xserver discovered external usb inputs. You've got two devices show up in your log, a logitech mouse and an MS keyboard. do they not work? is that the first log or the second log (after the rmmod)? also, what does udevadm info --export-db say when the devices aren't working? (In reply to comment #6) > You've got two devices show up in your log, a logitech mouse and an MS > keyboard. do they not work? is that the first log or the second log (after the > rmmod)? none of these 4 inputs (builtin keyboard/touchpad, external usb kbd/mouse) work after xserver startup. only usbhid reload after xserver startup brings usb input devices (ms kbd + logitech mouse) to live. Created attachment 51445 [details]
'udevadm info --export-db'before xserver startup.
Created attachment 51446 [details]
'udevadm info --export-db' with xserver online (and dead inputs).
this is a udev setup bug. the X server relies on /lib/udev/input_id to mark all input devices with the right ID_INPUT, ID_INPUT_TABLET, ID_INPUT_KEY, etc. In your case this doesn't show up so the X server thinks there are no input devices. for example, compare the Power Button virtual device, they should be identical (aside from the device numbers) but in your output the ID_INPUT* parts are missing. P: /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2 E: UDEV_LOG=3 E: DEVPATH=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2 E: PRODUCT=19/0/1/0 E: NAME="Power Button" E: PHYS="LNXPWRBN/button/input0" E: PROP=0 E: EV=3 E: KEY=10000000000000 0 E: MODALIAS=input:b0019v0000p0001e0000-e0,1,k74,ramlsfw E: SUBSYSTEM=input P: /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2/event2 N: input/event2 E: UDEV_LOG=3 E: DEVPATH=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2/event2 E: MAJOR=13 E: MINOR=66 E: DEVNAME=/dev/input/event2 E: SUBSYSTEM=input E: ID_INPUT=1 E: ID_INPUT_KEY=1 E: DMI_VENDOR=LENOVO This is a bug but I can't say whether your udev version is broken or if it's a local setup issue. either way, it's not something we can fix in evdev, sorry. Looks like it could just be a missing 'udevadm trigger' call somewhere in the boot process? (In reply to comment #12) > Looks like it could just be a missing 'udevadm trigger' call somewhere > in the boot process? rc.sysinit needs `mount -n -t tmpfs run /run` for udev data. |
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.
Created attachment 51368 [details] installed rpms. hi, i've recently installed my favourite linux distro with fresh rpm package set on new laptop but i've noticed a critical blocker problem with xserver/evdev. after console login the keyboard/ps2 works fine but the xserver startup gives me a dead kdm login dialog - keyboard and touchpad don't work. i've worked around this problem by connecting an usb keayboard/mouse and adding 'rmmod/modprobe usbhid' to kdm startup scrupt. i'm also sure that this is not a kde problem because the purisitic twm behaves in the same way. afaics in the xorg.log the evdev simply doesn't enumerate input devices at xserver startup. please tell me how can i debug this problem?