From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 86861] [rv6xx] When using a hardware KVM switch between computers EDID sometimes not detected/display goes fuzzy Date: Sat, 29 Nov 2014 21:31:27 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0494475963==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 6B1596E07E for ; Sat, 29 Nov 2014 13:31:27 -0800 (PST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0494475963== Content-Type: multipart/alternative; boundary="1417296687.BB5A0.1267"; charset="UTF-8" --1417296687.BB5A0.1267 Date: Sat, 29 Nov 2014 21:31:27 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=86861 Bug ID: 86861 Summary: [rv6xx] When using a hardware KVM switch between computers EDID sometimes not detected/display goes fuzzy Product: DRI Version: XOrg git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: shawn.starr@rogers.com kernel: 3.17.2-300.fc21.x86_6 I've noticed sometimes when using my KVM Switch when switching to the laptop. I get fuzzy text in console w/ KMS on. if I start X, the fuzzy display continues, a full reboot resets the display properly. Caught an error this time (maybe just as it was about to detect the EDID of display) [ 5877.852952] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130 [ 5877.860547] Raw EDID: [ 5877.862264] 00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff [ 5877.865817] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 5877.867201] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 5877.870127] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 5877.871706] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 5877.874040] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 5877.875309] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 5877.876593] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 5877.880376] [drm:radeon_vga_detect] *ERROR* VGA-1: probed a monitor but no|invalid EDID KVM switch model: ATEN CS-1734A (Firmware: V4.2.417 not upgraded since purchase) The actual EDID of the display (from Xorg log): [ 416.432] (II) RADEON(0): EDID (in hex): [ 416.432] (II) RADEON(0): 00ffffffffffff00320c00f200000000 [ 416.432] (II) RADEON(0): 0011010380211578eaba709859528c28 [ 416.432] (II) RADEON(0): 2550542108008180a940010101010101 [ 416.432] (II) RADEON(0): 010101010101e33a805a70b032401e1e [ 416.432] (II) RADEON(0): 13004bcf100000190000000000000000 [ 416.432] (II) RADEON(0): 00000000000000000000000000fe0058 [ 416.432] (II) RADEON(0): 55333031043135345755310a000000fe [ 416.432] (II) RADEON(0): 00283e4c53739bbaff02010a202000aa -- You are receiving this mail because: You are the assignee for the bug. --1417296687.BB5A0.1267 Date: Sat, 29 Nov 2014 21:31:27 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Bug ID 86861
Summary [rv6xx] When using a hardware KVM switch between computers EDID sometimes not detected/display goes fuzzy
Product DRI
Version XOrg git
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component DRM/Radeon
Assignee dri-devel@lists.freedesktop.org
Reporter shawn.starr@rogers.com 

kernel: 3.17.2-300.fc21.x86_6

I've noticed sometimes when using my KVM Switch when switching to the laptop. I
get fuzzy text in console w/ KMS on.

if I start X, the fuzzy display continues, a full reboot resets the display
properly.

Caught an error this time (maybe just as it was about to detect the EDID of
display)

[ 5877.852952] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 130
[ 5877.860547] Raw EDID:
[ 5877.862264]          00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
[ 5877.865817]          ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 5877.867201]          ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 5877.870127]          ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 5877.871706]          ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 5877.874040]          ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 5877.875309]          ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 5877.876593]          ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 5877.880376] [drm:radeon_vga_detect] *ERROR* VGA-1: probed a monitor but
no|invalid EDID

KVM switch model: ATEN CS-1734A (Firmware: V4.2.417 not upgraded since
purchase)

The actual EDID of the display (from Xorg log):

[   416.432] (II) RADEON(0): EDID (in hex):
[   416.432] (II) RADEON(0):    00ffffffffffff00320c00f200000000
[   416.432] (II) RADEON(0):    0011010380211578eaba709859528c28
[   416.432] (II) RADEON(0):    2550542108008180a940010101010101
[   416.432] (II) RADEON(0):    010101010101e33a805a70b032401e1e
[   416.432] (II) RADEON(0):    13004bcf100000190000000000000000
[   416.432] (II) RADEON(0):    00000000000000000000000000fe0058
[   416.432] (II) RADEON(0):    55333031043135345755310a000000fe
[   416.432] (II) RADEON(0):    00283e4c53739bbaff02010a202000aa

You are receiving this mail because:
  • You are the assignee for the bug.
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