[Kernel-packages] [Bug 952486] Re: 1002:9591 [Lenovo ThinkPad T500] External monitor on display port has no sync with radeon driver

I have tested the external display in Lucid (Ubuntu 10.04.4) and it works very well. So it's definitely a regression. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/952486 Title:

[Kernel-packages] [Bug 952486] Re: 1002:9591 [Lenovo ThinkPad T500] External monitor on display port has no sync with radeon driver

Yes, installing the proprietary AMD fglrx driver solves this problem. That's why I am currently using fglrx-legacy 8.97.100.7 on Ubuntu 13.04. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 952486] Re: External monitor on display port has no sync with radeon driver

I am not sure, because I didn't have an external monitor that time. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/952486 Title: External monitor on display port has no sync with radeon

[Kernel-packages] [Bug 952486] Re: External monitor on display port has no sync with radeon driver

I have tested the display with both type of kernels. Unfortunately I see no change. Test1: Ubuntu Trusty Tahr with Ubuntu kernel 3.12.0-3-generic Actual result: The original error message displayed by the monitor. Expected result: Display Ubuntu desktop in 1920x1080@60Hz. Test2: Ubuntu Trusty