Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 409153 - sys-kernel/gentoo-sources-3.2.1 with x11-drivers/xf86-video-ati-6.14.3 - [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 213
Summary: sys-kernel/gentoo-sources-3.2.1 with x11-drivers/xf86-video-ati-6.14.3 - [drm...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: AMD64 Linux
: Normal normal (vote)
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-03-21 11:19 UTC by Raphael
Modified: 2012-08-23 13:57 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---

Attachments
emerge --info (file_409153.txt,4.82 KB, text/plain)
2012-03-21 11:21 UTC, Raphael 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Raphael 2012-03-21 11:19:36 UTC 
After updating Kernel from 2.6.34 to 3.2.1 the problem started. First all seems to work fine, but in KDE all 5 seconds the screen freezes for 1 second. After searching gentoo-bugs and google i found following error message with "dmesg":

------------------------------------------------------
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 213
Raw EDID:
        00 ff ff ff ff ff ff 00 05 b7 00 00 17 04 00 00
        02 13 01 03 6e 31 1d 78 ef e5 25 a6 54 44 a1 25
        14 50 54 bf ef 00 81 80 81 8f 71 4f 95 00 95 0f
        b3 00 01 01 01 01 21 39 90 30 62 1a 27 40 50 18
        3e 11 ef 23 11 d6 ff 1c 00 00 00 fd 00 38 4c 1e
        55 13 00 0a 20 20 20 20 20 20 00 00 00 fc 00 58
        32 32 31 30 57 41 53 0a 20 20 20 20 00 00 00 ff
        00 30 30 31 30 34 37 0a 20 20 20 20 20 20 00 77
radeon 0000:06:00.0: DVI-I-1: EDID block 0 invalid.
------------------------------------------------------

This error only occurs when i connect an old monitor with vga over an adapter to my video card. If i disconnect the monitor all works fine, but when connection it starts to freeze all 5 seconds again. 

Reproducible: Always

Steps to Reproduce:
1. Compile kernel with radeon-ucode
2. Connect old vga-monitor
Comment 1 Raphael 2012-03-21 11:21:25 UTC 
Created attachment 306157 [details]
emerge --info
Comment 2 Jeroen Roovers (RETIRED) gentoo-dev 2012-03-21 16:38:49 UTC 
Please post your `emerge -vpq x11-drivers/xf86-video-ati' output in a comment.
Comment 3 Raphael 2012-03-21 19:16:18 UTC 
ra ra # emerge -vpq x11-drivers/xf86-video-ati
[ebuild   R   ] x11-drivers/xf86-video-ati-6.14.3
Comment 4 Chí-Thanh Christopher Nguyễn gentoo-dev 2012-03-22 12:41:12 UTC 
See what happens if you boot with drm_kms_helper.poll=0 kernel parameter.
Comment 5 Raphael 2012-03-26 16:42:05 UTC 
This works fine! Thank you very much!! One more point for linux :) Perfect support
Comment 6 Chí-Thanh Christopher Nguyễn gentoo-dev 2012-03-26 22:21:29 UTC 
This is not fixed, only worked around.
Comment 7 Mike Pagano gentoo-dev 2012-08-23 13:57:31 UTC 
Workaround identified, closing.