the latest git code of radeon driver will set big modes that beyond ATI ES1000's capability. resolution 1280x1024@75hz at32bpp as well as 1600x1200@85hz at 16bpp are not pruned by the driver.these modes are beyond ES1000 can support at 200MHZ and will lead to uncertain status. Acoording to chip spec.At 200MHZ,ES1000 cannot handle modes that higher than: 8bpp 1920x1440@60hz 16bpp 1600x1200@75hz 32bpp 1280x1024@60hz please refer to bug #5766 to get detailed information: https://bugs.freedesktop.org/show_bug.cgi?id=5766 the root cause of this bug is the driver enlarged the pixel clock range of es1000 by changing the empirical pixel clock max value in radeon driver, thus add some big modes to the valid mode list. I suggest change back the original pixel clock range of ES1000. patch will be attached soon.
Created attachment 7917 [details] [review] Change the empirical value back, limit pixel clock to meet memory bandwidth limits
Yes, I pointed this out on several occasions. Henry, do you object to this change?
Sorry about the phenomenal bug spam, guys. Adding xorg-team@ to the QA contact so bugs don't get lost in future.
*** This bug has been marked as a duplicate of bug 5766 ***
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