Hello, Last week I was doing job related to refresh rate selection support in vesafb driver, which includes (but not limited to) EDID reading support: to limit refresh rate and pixel clock to safe values, according to display reported settings.
Details: * I've made kfb driver a part of vesafb driver, on x86(_64) platforms. Now kfb part initialized first, allowing to provide framebuffer ASAP, while vbe part initializes in the background. * I've ported untilities to calculate timings: gtf and cvt. I planned to call these utilities from vesafb driver, to calculate timings. Not the most beautiful solution, but why not? If it were possible. I've found that HelenOS doesn't support such communication primitive as anonymous pipe (FIFO). So, I have to write library to calculate timings. Plan: * To finish refresh rate selection support. * To add new fuction(s) and IPC method(s) to libgraph and framebuffer driver which will allow to get and set advanced timing parameters. Add support of these functions to compositor and compctl util.
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