Mailinglist Archive: radeonhd (290 mails)
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[radeonhd] [Bug 15989] Using RanrR radeonhd driver passes wrong resolution information to applications
- From: bugzilla-daemon@xxxxxxxxxxxxxxx
- Date: Sat, 2 Aug 2008 06:37:06 -0700 (PDT)
- Message-id: <20080802133706.45952130052@xxxxxxxxxxxxxxxxxxxxxxxx>
http://bugs.freedesktop.org/show_bug.cgi?id=15989
--- Comment #13 from Egbert Eich <eich@xxxxxxxxxxxxxxxxxxx> 2008-08-02
06:37:05 PST ---
OK, i've pulled the HDMI riser board from my system and it started to exhibit
the same behavior: *all* I2C slave addresses on DDC2 start responding. When
reading one gets all zeros.
I then went ahead and disabled HDMI support in the BIOS with the hope that this
would modify the connector table in the Video BIOS (like on a Gigabyte RS780
board). But this didn't happen. I didn't see any effect when doing this.
I guess one could modify the DDC Probe to read the first to bytes of an EDID
block and check that they are 0x00 0xff.
This is really a hardware brokenness. I wonder if a BIOS update would make a
difference here.
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--- Comment #13 from Egbert Eich <eich@xxxxxxxxxxxxxxxxxxx> 2008-08-02
06:37:05 PST ---
OK, i've pulled the HDMI riser board from my system and it started to exhibit
the same behavior: *all* I2C slave addresses on DDC2 start responding. When
reading one gets all zeros.
I then went ahead and disabled HDMI support in the BIOS with the hope that this
would modify the connector table in the Video BIOS (like on a Gigabyte RS780
board). But this didn't happen. I didn't see any effect when doing this.
I guess one could modify the DDC Probe to read the first to bytes of an EDID
block and check that they are 0x00 0xff.
This is really a hardware brokenness. I wonder if a BIOS update would make a
difference here.
--
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