https://bugs.freedesktop.org/show_bug.cgi?id=34462
Summary: 180 second hang on boot, DRM doesn't seem to initialize (firmware issue?) Product: DRI Version: unspecified Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: owen.riddy@gmail.com
Created an attachment (id=43540) --> (https://bugs.freedesktop.org/attachment.cgi?id=43540) dmesg from Debian Unstable, fails to load
I have a Radeon 3450 graphics card and have been using Debian Squeeze (linux 2.6.32). The card was/is very well supported by the radeon graphics driver, and firmware was being properly loaded (Debian splits the firmware into a separate package from the kernel).
Whenever I compiled a newer vanilla kernel KMS didn't work (starting with 2.6.33, I believe. It was a while ago) and X wouldn't load. Every so often I tried a different kernel, and the problem remained. On X, the system would completely hang with a blank screen (I couldn't access any virtual terminals). I assumed I'd mis-configured my kernel and gave up.
Debian has now upgraded to linux 2.6.37-1 and this image seems to have the same problem. After upgrading, I get a suspicious 180 second pause when the kernel "populates /dev", which I now attribute to a bug. I'm getting an error message about modprobe blocking (in dmesg).
I suspect firmware loading problems: Wheezy (fails, 2.6.37): dmesg | grep -C 4 icroc
[ 4.325551] [drm] radeon: 256M of VRAM memory ready [ 4.325554] [drm] radeon: 512M of GTT memory ready. [ 4.325619] [drm] radeon: irq initialized. [ 4.325622] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 4.326544] [drm] Loading RS780 Microcode [ 4.329997] input: HDA ATI SB Headphone as /devices/pci0000:00/0000:00:14.2/sound/card0/input7 [ 4.414321] radeon 0000:01:05.0: WB enabled [ 4.446469] [drm] ring test succeeded in 1 usecs [ 4.446595] [drm] radeon: ib pool ready.
Squeeze (works, 2.6.32): dmesg | grep -C 4 icroc
[ 4.616162] [drm] radeon: 256M of VRAM memory ready [ 4.616163] [drm] radeon: 512M of GTT memory ready. [ 4.616204] [drm] radeon: irq initialized. [ 4.616206] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 4.616624] [drm] Loading RS780 Microcode [ 4.616627] platform radeon_cp.0: firmware: requesting radeon/RS780_pfp.bin [ 4.714728] hda_codec: ALC1200: BIOS auto-probing. [ 4.716081] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:14.2/input/input6 [ 4.809447] platform radeon_cp.0: firmware: requesting radeon/RS780_me.bin -- [ 4.941941] radeon 0000:02:00.0: irq 30 for MSI/MSI-X [ 4.941946] radeon 0000:02:00.0: radeon: using MSI. [ 4.941978] [drm] radeon: irq initialized. [ 4.941980] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 4.942370] [drm] Loading RV620 Microcode [ 4.942372] platform radeon_cp.0: firmware: requesting radeon/RV620_pfp.bin [ 4.982496] platform radeon_cp.0: firmware: requesting radeon/RV620_me.bin [ 4.988086] platform radeon_cp.0: firmware: requesting radeon/R600_rlc.bin [ 5.025570] [drm] ring test succeeded in 0 usecs
To be sure I haven't tainted the configuration, the method to get a test platform was: * Installed the Squeeze release base system * Upgrade to Wheezy, rebooted to test KMS (virtual terminal screen resolution was large, suggesting it worked) * Upgraded to unstable and reboot, at which point I get the 180 second hang and modprobe errors, as well as a rather low resolution VT.
lspci and other info can be found on this bug report: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=613922