https://bugs.freedesktop.org/show_bug.cgi?id=33438
Summary: Blank display and locked monitor with KMS and HDMI
monitr
Product: xorg
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=42415)
--> (https://bugs.freedesktop.org/attachment.cgi?id=42415)
Xorg and dmesg logs using HDMI and DVI
My graphics card is a Sapphire Radeon 3870 HD, with 2 DVI outputs, and I have 2
monitors; a Samsung one that has VGA, DVI and HDMI inputs, and a Philips one
that has only a VGA input.
Let my Philips monitor be connected to the first port of the card using a
DVI->VGA cable.
Now if I have the Samsung connected to the 2nd port using a DVI->DVI cable,
everything works fine, but if I connect it using a DVI->HDMI cable, at the
moment KMS initializes it displays a blank image, doesn't go into stand-by
mode, doesn't display any info, and pressing it's buttons don't do anything (no
menus).
Having it connected to the 1st port and/or just this one monitor shows same
behavior.
The Philips monitor keeps displaying the boot processs normally and it reaches
the GDM login screen just fine, so I know that xorg isn't crashing.
I collected some logs with drm.debug=15 first the Samsung connected using HDMI,
and then with it connected using the DVI port. These are attached.
I have been experiencing this bug since the early stages of KMS development, so
it's nothing new. With KMS disabled everything works fine.
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