| Summary: | Radeon xrandr event when unplug external display on VGA | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Honza Tvrznik <flateric> | ||||||
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> | ||||||
| Status: | RESOLVED MOVED | QA Contact: | Xorg Project Team <xorg-team> | ||||||
| Severity: | normal | ||||||||
| Priority: | medium | CC: | eugene.shalygin+bugzilla.FDO, flateric, knuckles | ||||||
| Version: | unspecified | ||||||||
| Hardware: | x86 (IA32) | ||||||||
| OS: | Linux (All) | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | i915 features: | ||||||||
| Attachments: |
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Created attachment 81445 [details]
dmesg
There are no hotplug interrupts for analog outputs like VGA. The drm core has code to poll non-hotplug capable connectors to see if a monitor is present or not. Make sure you haven't disabled polling in the drm_kms_helper module. (In reply to comment #2) > There are no hotplug interrupts for analog outputs like VGA. The drm core > has code to poll non-hotplug capable connectors to see if a monitor is > present or not. Make sure you haven't disabled polling in the > drm_kms_helper module. Thanks for reply Alex, polling is enabled: cat /sys/module/drm_kms_helper/parameters/poll Y Still without success, maybe it's time for new hardware (with hdmi) ;-) You can close this ticket. Thanks. I have the very same problem --- sometimes there are no randr events on plug and much more frequently on unplug for HDMI/DP connectors. I have feeling that events works fine right after boot, but cease after some time (somewhat about tens of minutes). Firstly unplug events disappear, then after several minutes plug events also. If I call xrandr or activate randr via KScreen, plug events come back and unplug events sometimes also start to work. GPU: Radeon HD 5850M Kernel: 3.10.9 xf86-video-ati from git master I just migrated from an old Intel Atom using i915 to a Radeon on a E-350 and this stopped working. Polling is on, but I had to add my own polling script to call xrandr in a loop. Maybe a more apt description of this bug is that "polling is broken for radeon vga outputs". -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati/issues/69. |
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Created attachment 81444 [details] xorg log Hello, i have notebook and external display connected via VGA port. I am using kscreen for display management. When I connect external display everything works well (notebook display switched off and all screen is on external display). But when I unplug VGA cable, display on notebook stays black. Workaround is run xrandr (without parametrs) in console for flushing cache. I have suspicion, that raden driver don't generate Xrandr event (message) when external display is unplugged from VGA port. GPU: ATI Radeon X1400 Driver: OS Radeon (xf86-video-ati 1:7.1.0-3) Distro: Arch Linux KDE: 4.10.4 Kscreen: 1.0