gistfile1.cs

static readonly string[] videoCardBlacklist = {"8086:0116"};
static void DisableHwRenderingForCrapVideoCards()
{
    if (!String.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("MY_VIDEO_CARD_REALLY_WORKS")))
    {
        return;
    }

    int osVersion = Environment.OSVersion.Version.Major * 100 + Environment.OSVersion.Version.Minor;
    if (osVersion < 601)
    {
        log.Warn("Hardware acceleration is much more prolematic on OS's earlier than Vista");
        log.Warn("If you believe this isn't the case, set the MY_VIDEO_CARD_REALLY_WORKS environment variable");
        RenderOptions.ProcessRenderMode = RenderMode.SoftwareOnly;
        return;
    }

    var re = new Regex(@"VEN_([0-9A-Z]{4})&DEV_([0-9A-Z]{4})");
    var wmiSearch = new ManagementObjectSearcher("root\\cimv2", "SELECT * FROM win32_videocontroller");
    var items = wmiSearch.Get();

    foreach (var item in items)
    {
        var val = (string)item.GetPropertyValue("PNPDeviceID");
        var m = re.Match(val);
        if (!m.Success || m.Captures.Count != 3) continue;

        var pnpId = String.Format("{0}:{1}", m.Groups[1].Value, m.Groups[2].Value);
        if (videoCardBlacklist.Contains(pnpId))
        {
            log.Warn("Your video card is known to cause graphical glitches, so we have disabled hardware rendering");
            log.Warn("If you believe this isn't the case, set the MY_VIDEO_CARD_REALLY_WORKS environment variable");
            RenderOptions.ProcessRenderMode = RenderMode.SoftwareOnly;
        }
    }
}