** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1768761
Title:
linux-snapdragon: reduce EPROBEDEFER noise during boot
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Bionic:
In Progress
Bug description:
IMPACT:
During boot, after the rootfs is mounted, the linux-snapdragon kernel
prints several lines like these:
...
[ 5.258027] qcom-apq8016-sbc 7702000.sound: error getting codec dai name
[ 5.258052] qcom-apq8016-sbc 7702000.sound: Error resolving dai links: -517
[ 5.274320] msm_dsi_manager_register: failed to register mipi dsi host for
DSI 0
[ 5.274451] msm 1a00000.mdss: failed to bind 1a98000.dsi (ops dsi_ops):
-517
[ 5.300115] qcom-apq8016-sbc 7702000.sound: error getting codec dai name
[ 5.300140] qcom-apq8016-sbc 7702000.sound: Error resolving dai links: -517
[ 5.733725] msm_dsi_manager_register: failed to register mipi dsi host for
DSI 0
[ 5.733841] msm 1a00000.mdss: failed to bind 1a98000.dsi (ops dsi_ops):
-517
[ 5.760228] qcom-apq8016-sbc 7702000.sound: error getting codec dai name
[ 5.760252] qcom-apq8016-sbc 7702000.sound: Error resolving dai links: -517
[ 6.146074] msm_dsi_manager_register: failed to register mipi dsi host for
DSI 0
...
these are the audio and drm modules failing to attach due to the
adv7511 i2c bridge missing - they will retry several times, until the
adv7511_drm is finally loaded and these messages disappear.
While both audio and video work fine in the end, these lines make
parsing the boot logs harder and might fool a user to think there's a
potential problem.
FIX:
To fix it, make the config DRM_I2C_ADV7511=y.
HOW TO REPRODUCE:
Boot a patched kernel and check the boot logs.
REGRESSION POTENTIAL:
Probably none.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768761/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
