2013年11月25日 星期一
Radeon HD 6470M - LVDS-1: EDID block 0 invalid
Problem:
Frequent pause is noted using 6470M with open source Radeon driver.
Kernel reports EDID spam ....
In dmesg:
[ 2614.472893] Raw EDID:
[ 2614.472895] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472897] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472898] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472900] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472902] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472903] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472905] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472907] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2614.472909] radeon 0000:02:00.0: LVDS-1: EDID block 0 invalid.
Solution:
In /etc/modprobe.d/modprobe.conf:
add
options drm_kms_helper poll=0
The fix doesn't eliminate the problem but make it much less frequent and become tolerable.
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