* [Bug 102931] New: Radeon : EDID Reading Incorrectly
@ 2015-08-15 13:08 bugzilla-daemon
2015-08-17 2:02 ` [Bug 102931] " bugzilla-daemon
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2015-08-15 13:08 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=102931
Bug ID: 102931
Summary: Radeon : EDID Reading Incorrectly
Product: Drivers
Version: 2.5
Kernel Version: 4.1.5
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: contrib@kliznoe.com
Regression: No
When running get-edid | parse-edid with i2c-dev module loaded, It doesn't read
my monitor correctly. The EDID reads fine with Windows and xrandr.
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^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 102931] Radeon : EDID Reading Incorrectly 2015-08-15 13:08 [Bug 102931] New: Radeon : EDID Reading Incorrectly bugzilla-daemon @ 2015-08-17 2:02 ` bugzilla-daemon 2015-08-17 2:03 ` bugzilla-daemon ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2015-08-17 2:02 UTC (permalink / raw) To: dri-devel https://bugzilla.kernel.org/show_bug.cgi?id=102931 Alex Deucher <alexdeucher@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |alexdeucher@gmail.com --- Comment #1 from Alex Deucher <alexdeucher@gmail.com> --- IIRC, get-edid doesn't actually probe any i2c buses, it uses vm86 to do vbe calls to the vbios. vbe will only provide the edid for whatever monitor it happened to probe at boot and likely won't work correctly once a real driver is loaded. It's also not multi-head aware so if you have multiple monitors attached or are using a different display than what was available at boot it probably won't work. -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 102931] Radeon : EDID Reading Incorrectly 2015-08-15 13:08 [Bug 102931] New: Radeon : EDID Reading Incorrectly bugzilla-daemon 2015-08-17 2:02 ` [Bug 102931] " bugzilla-daemon @ 2015-08-17 2:03 ` bugzilla-daemon 2015-08-17 7:19 ` bugzilla-daemon ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2015-08-17 2:03 UTC (permalink / raw) To: dri-devel https://bugzilla.kernel.org/show_bug.cgi?id=102931 --- Comment #2 from Alex Deucher <alexdeucher@gmail.com> --- This is not a driver bug. It's a limitation of get-edid. -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 102931] Radeon : EDID Reading Incorrectly 2015-08-15 13:08 [Bug 102931] New: Radeon : EDID Reading Incorrectly bugzilla-daemon 2015-08-17 2:02 ` [Bug 102931] " bugzilla-daemon 2015-08-17 2:03 ` bugzilla-daemon @ 2015-08-17 7:19 ` bugzilla-daemon 2015-08-17 9:16 ` bugzilla-daemon 2015-08-17 9:34 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2015-08-17 7:19 UTC (permalink / raw) To: dri-devel https://bugzilla.kernel.org/show_bug.cgi?id=102931 --- Comment #3 from Maxqia <contrib@kliznoe.com> --- Created attachment 185121 --> https://bugzilla.kernel.org/attachment.cgi?id=185121&action=edit get-edid | parse-edid output According to the read-edid website and the program output, get-edid uses the i2c bus. -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 102931] Radeon : EDID Reading Incorrectly 2015-08-15 13:08 [Bug 102931] New: Radeon : EDID Reading Incorrectly bugzilla-daemon ` (2 preceding siblings ...) 2015-08-17 7:19 ` bugzilla-daemon @ 2015-08-17 9:16 ` bugzilla-daemon 2015-08-17 9:34 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2015-08-17 9:16 UTC (permalink / raw) To: dri-devel https://bugzilla.kernel.org/show_bug.cgi?id=102931 Christian König <deathsimple@vodafone.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |deathsimple@vodafone.de --- Comment #4 from Christian König <deathsimple@vodafone.de> --- get-edid calls into the BIOS directly to access the I2C bus and doesn't uses the driver. With a kernel driver this is pretty much deprecated and shouldn't be used any more. Use the one provided in sysfs instead, try: find /sys -name "edid" -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 102931] Radeon : EDID Reading Incorrectly 2015-08-15 13:08 [Bug 102931] New: Radeon : EDID Reading Incorrectly bugzilla-daemon ` (3 preceding siblings ...) 2015-08-17 9:16 ` bugzilla-daemon @ 2015-08-17 9:34 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2015-08-17 9:34 UTC (permalink / raw) To: dri-devel https://bugzilla.kernel.org/show_bug.cgi?id=102931 Maxqia <contrib@kliznoe.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |INVALID -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-08-17 9:34 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2015-08-15 13:08 [Bug 102931] New: Radeon : EDID Reading Incorrectly bugzilla-daemon 2015-08-17 2:02 ` [Bug 102931] " bugzilla-daemon 2015-08-17 2:03 ` bugzilla-daemon 2015-08-17 7:19 ` bugzilla-daemon 2015-08-17 9:16 ` bugzilla-daemon 2015-08-17 9:34 ` bugzilla-daemon
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