On Fri, Jul 20, 2012 at 1:45 PM, Michel Dänzer <[email protected]> wrote: > On Don, 2012-07-19 at 23:43 +1000, James Robertson wrote: >> Package: xserver-xorg-video-ati >> Version: 1:6.14.4-5 >> Severity: normal >> >> Dear Maintainer, >> >> I have a Lenovo R500 laptop with an "[AMD] nee ATI RV620 [Mobility Radeon HD >> 3400 >> Series]" graphics chip >> >> I recently obtained 2x AOC monitors with a 1920x1080 resolution and have >> these connected via DVI and VGA to a laptop docking station. >> >> The laptop only supports a maximum of 2 displays at once. >> >> With the laptop display disabled I get screen tearing and corruption when >> using 1 or both of the external monitors with 1920x1080 resolution. >> But strangely if I set one of them to a lower resolution such as 1680x1050 >> (the other still at 1920x1080) the screen tearing issue dissapears. Odd >> given >> a single display gets the tearing... >> >> If using the laptop's display in conjunction with either DVI or VGA >> connected monitor at 1920x1080 I experience no tearing. >>
Also note that rendering can only be synchronized to one head at a time to avoid tearing. If you have windows that span multiple heads, you may get tearing on the non-synced heads. Alex -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/CADnq5_PQq+-_nu+JyBMwAGsnpwL028pub1ZJE8ûHtyP[email protected]
