http://bugs.freedesktop.org/show_bug.cgi?id=11801
Summary: Incorrect refresh rate with 9100 Pro IGP
Product: xorg
Version: 7.2
Platform: x86 (IA32)
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
QAContact: [EMAIL PROTECTED]
Connecting a Samsung 930BF via DVI to an Asus Pundit R350 with a 9100 IGP
results in the display being driven with incorrect modes.
The graphic card is detected as follows by lspci:
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon 9100 PRO IGP
The attached TFT display should be used at 1280x1024 at about 60 kHz refresh
rate.
The xorg.conf entry is accordingly set to have a Horizontal Sync of 31.5 - 67.0
kHz and a Vertical Refresh of 50.0 - 75.0 Hz.
When starting the xserver the display shows a message on the OSD saying:
"Not Optimum Mode
Recommended Mode:
1280x1024 60Hz"
Taking a look at the OSD info screen shows the following:
Digital
32.2kHz 30Hz PP
1280x1024
It seems the radeon driver is being confused about the right way to drive the
display.
Fiddling with the Horizontal and Vertical settings or defining a Target Refresh
rate seem to have no affect.
Configuring the vesa driver instead results in a stable picture without
flickering and wobbling. Only drawback is the resolution of 1024x786 with the
vesa driver.
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