On 09/24/2012 02:49 PM, Sami Kerola wrote:
FYI rtl8192ce maintainers (and maillist archive readers), I recently bought Toshiba Satellite C850D-107 version PSC9SE-00T00DEN which comes with Realtek hardware[1]. Initially I had a bit of problems with Arch Linux kernel 3.5.4-1-ARCH which froze after running wpa_supplicant. Once the command had been entered it took about 5 to 10 seconds before real trouble, by which I mean terminal did not echo keystrokes nor feel any way responsive. I did not try Magic SysRq's. Strange enough that problem persisted over boot, and went away only if I went to BIOS and set factory defaults. Once factory defaults where set I could use console again, as long I did not try to do anything with wpa_supplicant command. After wondering for while I found instructions[2] how to go around; disable power saving, e.g., the set the lines below. $ cat /etc/modprobe.d/rtl8192ce.conf options rtl8192ce ips=0 fwlps=0 That worked I became curious if the latest kernel would have the same issue. Now I am running 3.6.0-rc6-ARCH-00193-ge5e77cf from Linus's git with new firmware[3], and power save enabled. At least after an hour all seems to work fine. Did you anticipate firmware change to fix this these sort of problem? [1] The hardware: 06:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01) Subsystem: Realtek Semiconductor Co., Ltd. Device 8212 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 17 Region 0: I/O ports at 3000 [size=256] Region 2: Memory at f0200000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: rtl8192ce [2] https://bbs.archlinux.org/viewtopic.php?id=132931 [3] md5sum /usr/lib/firmware/rtlwifi/rtl8192cfwU_B.bin dd371739aa401ea1d615436b24598bc4 /usr/lib/firmware/rtlwifi/rtl8192cfwU_B.bin
As I do not have a Toshiba laptop, I have no idea what the change in BIOS setting might have done.
I doubt that adding the rtl8192cfwU_B.bin firmware to your system made any difference. The device that needs that firmware is a B-cut RTL8188CE, and the code to drive it has been submitted to wireless-testing, but not yet merged. I expect that it will be in kernel 3.7. Kernel 3.6-rc7 from mainline contains code that detects the B-cut device and logs a warning, but there are no other changes.
The output of the dmesg command will say what firmware has been loaded. Larry -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
