Anyone who has a YeeLoong Laptop will find the graphics performance is unacceptable. Even just run dmesg, the output will take a lot of time.
In fact, there is a built-in 2D acceleration in SM712, the video chip of YeeLoong. And the driver which supports the acceleration, appeared in the early-days pull request of YeeLoong to the Linux Kernel. But, later on, a crucial bug had been found. > it may make the whole system hang when scrolling the screen, for example, if we > copy some files from another machines to yeeloong via scp and the screen > output is enabled, the whole system may hang. So, developers had to remove the acceleration-related code. Then, we got poor performance on the text-mode framebuffer - until today. If we can fix up the buggy driver, the output will become 10x faster at least. I just a user of YeeLoong, who don't have enough knowledge to work with that driver. And I noticed the issue. I'm sending the email to provided the information for anybody interest in hacking and debugging the driver for the community. Any discussion are welcomed. Cheers, Tom Li -- You received this message because you are subscribed to the Google Groups "loongson-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/loongson-dev. For more options, visit https://groups.google.com/groups/opt_out.
