Who is responsible for radeon driver bugs?

[felix-linuxkernel]

The radeon driver does not work on my laptop.
I sent a bug report here a week ago, but got no responses.
What is the right place to send bug reports for the radeon driver?

The bug is that LVDS output does not work.  This is, according to lspci,
a 5000M series Madison Radeon.

When I insmod the module, the screen stays in text mode and appears
locked up.

If something is connected to the HDMI port, I get a framebuffer console
there.  LVDS stays in broken text mode though.

When I start X, the HDMI screen turns dark and stays dark and the LVDS
screen also stays dark and I have to reboot.

The driver loads the REDWOOD firmware OK.

Who is responsible for this?  Where do I send my bug report?

Thanks,

Felix
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blank screen on LVDS when switching to radeon with vga switcheroo

[felix-linuxkernel]

I have a HP Envy 14 laptop, which has switchable graphics between:

00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated 
Graphics Controller (rev 02)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Madison 
[Radeon HD 5000M Series] (rev ff)

This used to work (I'm not using it very often, so I don't know which kernel
version broke it), and I think it caused total kernel hang in 3.0 till 3.3 or
so.  Not it "works" in the sense that when a HDMI cable is connected, I get a
picture on the connected monitor.  But the primary display output, LVDS-2, 
stays black.

Here's the relevant dmesg parts:

agpgart-intel :00:00.0: Intel HD Graphics Chipset
agpgart-intel :00:00.0: detected gtt size: 2097152K total, 262144K mappable
agpgart-intel :00:00.0: detected 32768K stolen memory
agpgart-intel :00:00.0: AGP aperture is 256M @ 0xb000
[drm] Initialized drm 1.1.0 20060810
i915 :00:02.0: setting latency timer to 64
i915 :00:02.0: irq 40 for MSI/MSI-X
[drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[drm] Driver supports precise vblank timestamp query.
vgaarb: device changed decodes: 
PCI::00:02.0,olddecodes=io+mem,decodes=none:owns=io+mem
vgaarb: transferring owner from PCI::00:02.0 to PCI::01:00.0
ACPI: Deprecated procfs I/F for battery is loaded, please retry with 
CONFIG_ACPI_PROCFS_POWER cleared
ACPI: Battery Slot [BAT0] (battery present)
ACPI: Deprecated procfs I/F for battery is loaded, please retry with 
CONFIG_ACPI_PROCFS_POWER cleared
ACPI: Battery Slot [BAT1] (battery absent)
[drm] GMBUS [i915 gmbus vga] timed out, falling back to bit banging on pin 2
fbcon: inteldrmfb (fb0) is primary device
Console: switching to colour frame buffer device 200x56
i915 :00:02.0: fb0: inteldrmfb frame buffer device
i915 :00:02.0: registered panic notifier
[Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
acpi device:01: registered as cooling_device5
ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
input: Video Bus as 
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3
[Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS
acpi device:0a: registered as cooling_device6
ACPI: Video Device [PEGP] (multi-head: yes  rom: no  post: no)
input: Video Bus as 
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:08/LNXVIDEO:01/input/input4
[drm] Initialized i915 1.6.0 20080730 for :00:02.0 on minor 0

[drm] radeon defaulting to kernel modesetting.
[drm] radeon kernel modesetting enabled.
VGA switcheroo: detected switching method \_SB_.PCI0.GFX0.ATPX handle
radeon :01:00.0: enabling device ( -> 0003)
[drm] initializing kernel modesetting (REDWOOD 0x1002:0x68C1 0x103C:0x1436).
[drm] register mmio base: 0xC440
[drm] register mmio size: 131072
vga_switcheroo: enabled
ATPX version 1
ATOM BIOS: MADISON
radeon :01:00.0: VRAM: 1024M 0x - 0x3FFF (1024M 
used)
radeon :01:00.0: GTT: 512M 0x4000 - 0x5FFF
mtrr: no more MTRRs available
[drm] Detected VRAM RAM=1024M, BAR=256M
[drm] RAM width 128bits DDR
[TTM] Zone  kernel: Available graphics memory: 3980934 kiB
[TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[TTM] Initializing pool allocator
[TTM] Initializing DMA pool allocator
[drm] radeon: 1024M of VRAM memory ready
[drm] radeon: 512M of GTT memory ready.
[drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[drm] Driver supports precise vblank timestamp query.
radeon :01:00.0: irq 45 for MSI/MSI-X
radeon :01:00.0: radeon: using MSI.
[drm] radeon: irq initialized.
[drm] GART: num cpu pages 131072, num gpu pages 131072
[drm] probing gen 2 caps for device 8086:45 = 1/0
[drm] Loading REDWOOD Microcode
[drm] PCIE GART of 512M enabled (table at 0x0004).
radeon :01:00.0: WB enabled
radeon :01:00.0: fence driver on ring 0 use gpu addr 0x4c00 and 
cpu addr 0x880251324c00
radeon :01:00.0: fence driver on ring 3 use gpu addr 0x4c0c and 
cpu addr 0x880251324c0c
radeon :01:00.0: enabling bus mastering
[drm] ring test on 0 succeeded in 1 usecs
[drm] ring test on 3 succeeded in 1 usecs
[drm] ib test on ring 0 succeeded in 0 usecs
[drm] ib test on ring 3 succeeded in 0 usecs
[drm] radeon atom DIG backlight initialized
[drm] Radeon Display Connectors
[drm] Connector 0:
[drm]   LVDS-2
[drm]   DDC: 0x6560 0x6560 0x6564 0x6564 0x6568 0x6568 0x656c 0x656c
[drm]   Encoders:
[drm] LCD1: INTERNAL_UNIPHY
[drm] Connector 1:
[drm]   DP-1
[drm]   HPD2
[drm]   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c
[drm]   Encoders:
[drm] DFP1: INTERNAL_UNIPHY1
[drm] Connector 2:
[drm]   HDMI-A-1
[drm]   HPD1
[drm]   DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c
[drm]   Encoders:
[drm] DFP2: INTERNAL_UNIPHY1
[drm] Internal thermal controller with fan control
[drm] radeon: power management initialized
[drm] fb mappable at 0xA0142000

igmp problem

[felix-linuxkernel]

Hi!

I wrote a few multicast tools, which use these multicast groups:

  225.109.99.112
  ff02::6d63:7030
  224.110.99.112
  ff02::6e63:7030

I have a Cisco in the middle, and both boxes are in different VLANs.
The Cisco is sending out igmp queries.  The kernel never answers, even
after subscribing to these multicast groups.

The kernel version is 2.4.26.  What could be the problem here?

I found no netfilter rules, and the kernel has multicast support (at
least several igmp related sysctls exist).

Felix
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memory remapping, 4gb memory on 945gt

[felix-linuxkernel]

I recently put 4 GB of memory in my Acer Travelmate 8210 series
notebook.  The BIOS only detects 3 GB.

I googled around a little.  It appears to be a chipset limitation of the
945gt, which uses the fourth gig for devices.

Now I can understand this explanation for 32-bit mode, but I'm running
in 64-bit mode.  There should be a way to use the fourth gig under
Linux.  Is there?

Has anyone else solved this problem?  What happens if you just use the
mem= option to tell the kernel you have 4 GB?  I'd just try it but I
don't want to corrupt my buffer cache and get crap writte over my data
on disk.

Any advice?

Felix
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