From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 60639] New: RV635: Kernel displays black screen when monitor is
connect via DisplayPort
Date: Sun, 28 Jul 2013 08:19:37 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=60639
Bug ID: 60639
Summary: RV635: Kernel displays black screen when monitor is
connect via DisplayPort
Product: Drivers
Version: 2.5
Kernel Version: 3.10.3 (and earlier)
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: kernspam@schreib-doch-mal-wieder.de
Regression: No
When the monitor is connected via DisplayPort I can see grub but once the
kernel takes over, the screen goes black. When the same monitor is connected
via DVI
everything works.
Adding the kernel option "video=DP-1:1920x1200@75" makes at least the kernel
messages and virtual consoles work. However, when X starts the screen goes
black again. This might be related to the bug reported here:
https://bugzilla.novell.com/show_bug.cgi?id=752593
Modeline from EDID:
Detailed mode: Clock 154.000 MHz, 518 mm x 324 mm
1920 1968 2000 2080 hborder 0
1200 1203 1209 1235 vborder 0
+hsync -vsync
Monitor ranges (GTF): 50-61Hz V, 30-83kHz H, max dotclock 170MHz
Kernel 3.10.3 (but also tested with 3.9.x and 3.8.x)
Graphic chip: ATI Mobility FireGL V5700
(the second intel chip should be disabled)
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