On Mon, Sep 20, 2010 at 08:59:00AM -0400, Andy Walls wrote: > DRM KMS polling of connections providing errant EDID responses, or > polling of "connectors" that have chips responding on DDC I2C bus > address 0xA0/0xA1 with no actual physical connector nor EDID EEPROM, > will create perpetual noise in dmesg and the system log every 10 > seconds. Currently the user has apparently little recourse to silence > these messages aside from replacing the offending cable, monitor, or > graphics adapter. That recourse is impossible for an unused DVI-D > "connector" of an internal graphics processor on a motherboard that > provides no physical DVI-D connector. > > This change allows the root user to disable (and re-enable) DRM KMS > connector polling on a per connector basis via sysfs, like so: > > # cat /sys/class/drm/card0/card0-DVI-D-1/polled > [hotplug_detectable] connect disconnect > > # echo > /sys/class/drm/card0/card0-DVI-D-1/polled > # cat /sys/class/drm/card0/card0-DVI-D-1/polled > hotplug_detectable connect disconnect > > # echo " connect hotplug_detectable " > \ > /sys/class/drm/card0/card0-DVI-D-1/polled > # cat /sys/class/drm/card0/card0-DVI-D-1/polled > [hotplug_detectable] [connect] disconnect > > # echo > /sys/class/drm/card0/card0-DVI-D-1/polled > # cat /sys/class/drm/card0/card0-DVI-D-1/polled > hotplug_detectable connect disconnect > > with the enabled poll types for the connector denoted in brackets: []. > This allows the root user to silence DRM KMS log spam for locally known > uncorrectable conditions. > > Signed-off-by Andy Walls <awalls@xxxxxxxxxxxxxxxx> You are adding a sysfs file, yet you forgot to add a file in Documentation/ABI. Please fix that and resend the patch. thanks, greg k-h _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
