On Sun, 15 Apr 2012 08:43:21 +0100 DJ Lucas <d...@linuxfromscratch.org> wrote:
> After an annoying battle with Gallium, KMS, firmware, etc. on my > new(ish) system, I think we should probably cover this in the book > someplace, but I'm not sure how to go about adding it. For starters, > where does it belong, in Post LFS or in Xorg? I'd be happy to add a > page, but I'm not at all familiar enough to do so yet. I think we should add a section about kernel config to one of the xorg pages, maybe xorg-server? It's xorg-server that needs KMS enabled. > For instance, I have a card that is identified as an HD 5400 Cedar Pro > (it was cheap and I have no need for a monster graphics card). After > building in first one at a time, and then all of the CEDAR_*.bin files, > I was still greeted with a ~30 second delay on boot up, and no DRI2 each > time. Maybe there was a typo in one of the names? No, the kernel make would barf with a file not found error. Did you use CEDAR_*.bin globing in your kernel config? There seem to be 3 CEDAR bin files: andy@doughnut:~$ ls /lib/firmware/radeon/CE* /lib/firmware/radeon/CEDAR_me.bin /lib/firmware/radeon/CEDAR_rlc.bin /lib/firmware/radeon/CEDAR_pfp.bin CONFIG_EXTRA_FIRMWARE="radeon/CEDAR_me.bin radeon/CEDAR_rlc.bin radeon/CEDAR_pfp.bin" CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware" > I plan to reduce that list later, but I'm on a Java trip now that Gnome > is working sufficiently well. Perhaps I've simply lost my Google touch, > but I'm not convinced that good documentation even exists yet! Anybody > got a pointer? Sorry > Perhaps a link in the xorg configuration will handle it > until concise documentation can be produced for the book? Maybe it would > be better to recommend building the vendor DRM driver only as a module, > and to install all the firmware in /lib/firmware (I haven't actually > tried this, but I found documentation that said Xorg would tell you the > needed file in the log if DRM is a module)? Yes, I think that's the way to go. Install the linux firmware: http://git.kernel.org/?p=linux/kernel/git/dwmw2/linux-firmware.git;a=summary If you put it in /lib/firmware so you don't have to keep copying it into the kernel source every time you recompile. Start by compiling the kernel as a module, boot and then: dmesg | grep radeon or dmesg | grep firmware Then recompile with the firmware compiled into the kernel so you get KMS, framebuffer, penguins and nice fonts right from the start. Andy -- http://linuxfromscratch.org/mailman/listinfo/blfs-dev FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
