Bug#944679: extlinux: Visual bugs while editing a long kernel command line
On 23/12/2019 19:30, Lukas Schwaighofer wrote: > I'll look into this and try to reproduce this within the next few days. > To speed things up, can you provide me with your configuration? Here's my config: DEFAULT debian PROMPT 0 TIMEOUT 200 UI vesamenu.c32 MENU MARGIN 10 MENU WIDTH 80 MENU ROWS 10 MENU HELPMSGROW 25 MENU CMDLINEROW 25 MENU TABMSGROW 25 MENU HSHIFT 0 MENU VSHIFT 0 MENU TITLE !!! BOOT !!! MENU BACKGROUND background_640x480.png MENU COLOR border 30;44 #40ff #a000 std MENU COLOR title1;36;44 #9033ccff #a000 std MENU COLOR sel 7;37;40 #e0ff #20ff all MENU COLOR unsel37;44 #50ff #a000 std MENU COLOR help 37;40 #c0ff #a000 std MENU COLOR timeout_msg 37;40 #80ff # std MENU COLOR timeout 1;37;40 #c0ff # std MENU COLOR msg0737;40 #90ff #a000 std MENU COLOR tabmsg 31;40 #30ff # std LABEL debian MENU LABEL Debian 5.4.6-amd64 KERNEL ../vmlinuz-5.4.6-amd64 APPEND root=/dev/mapper/wd_black_label-root net.ifnames=0 biosdevname=0 audit_backlog_limit=2048 log_buf_len=32M systemd.log_target=kmsg systemd.unified_cgroup_hierarchy=0 printk.devkmsg=on swapaccount=1 luks.crypttab=no page_poison=1 slab_nomerge slub_debug=FZP pti=auto mds=full vsyscall=none spec_store_bypass_disable=on lockdown=none apparmor=1 security=apparmor ro loglevel=4 INITRD ../initrd.img-5.4.6-amd64 TEXT HELP Debian (/dev/sda1). ENDTEXT MENU CLEAR > > If you're able to perform some test, can you check whether the > behavior is consistent when using a different UI modules (menu.c32 or > vesamenu.c32). I tested both menu.c32 and vesamenu.c32, and they have the same issue.
Bug#944679: extlinux: Visual bugs while editing a long kernel command line
Control: tags -1 + moreinfo Hi Mikhail, apologies for the long delay, there was a lot going on the before winter holidays. On Wed, 13 Nov 2019 17:59:13 +0100 Mikhail Morfikov wrote: > My current kernel command line is about 400-character long. When it > was shorter, I didn't have any issues when I wanted to edit this line > in the bootloader screen by selecting some entry and pressing "E". > > I recently added some other kernel parameters to the cmd line, and I > noticed many visual bugs in the bootloader screen. Basically with > each cursor movement (back and forth), I get an extra text line in > the screen output (copy of the current line scrolled up). Also > characters in the cmd line disappear or change when I move the cursor > back. The visual bugs make it almost impossible to edit the kernel > cmd line. Also When I press the backspace key (or the back arrow key) > for a longer period of time (let's assume I want to delete some > parameters entirely from the line), I hear the hardware beeper which > is really annoying. > > I found out that the problem appears when I have more than 4 lines of > text on the screen when editing the cmd line. So fifth (and next > ones) will trigger the visual bugs, while 4 (and less) won't. I'll look into this and try to reproduce this within the next few days. To speed things up, can you provide me with your configuration? If you're able to perform some test, can you check whether the behavior is consistent when using a different UI modules (menu.c32 or vesamenu.c32). Thanks Lukas
Bug#944679: extlinux: Visual bugs while editing a long kernel command line
Package: extlinux Version: 3:6.04~git20190206.bf6db5b4+dfsg1-1 Severity: important -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Dear Maintainer, My current kernel command line is about 400-character long. When it was shorter, I didn't have any issues when I wanted to edit this line in the bootloader screen by selecting some entry and pressing "E". I recently added some other kernel parameters to the cmd line, and I noticed many visual bugs in the bootloader screen. Basically with each cursor movement (back and forth), I get an extra text line in the screen output (copy of the current line scrolled up). Also characters in the cmd line disappear or change when I move the cursor back. The visual bugs make it almost impossible to edit the kernel cmd line. Also When I press the backspace key (or the back arrow key) for a longer period of time (let's assume I want to delete some parameters entirely from the line), I hear the hardware beeper which is really annoying. I found out that the problem appears when I have more than 4 lines of text on the screen when editing the cmd line. So fifth (and next ones) will trigger the visual bugs, while 4 (and less) won't. So what to do with it? - -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (990, 'unstable'), (500, 'testing'), (130, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.3.11-amd64 (SMP w/2 CPU cores; PREEMPT) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages extlinux depends on: ii libc6 2.29-3 Versions of packages extlinux recommends: ii syslinux-common 3:6.04~git20190206.bf6db5b4+dfsg1-1 extlinux suggests no packages. -BEGIN PGP SIGNATURE- iQIzBAEBCgAdFiEE5JPPWm5C7TFDUMqpzQRoEHcbZSAFAl3MNmEACgkQzQRoEHcb ZSCybg/+LbzriiSLoPsLRK9iW+GmMD4U82YnK6OoEjz7YMIWi8yJzzzgsRgoSJs5 yOpXTdbMQchScmbrloMb7jBDWkaK594+2RvL+ZOyeYt7SNAwIyZEv4AdA1DiNArn moKQk48WPKV4gNqVXnjlvs+Eab6nFh7AokzMSG7TxHiZ283s1aQYOdUjiVWdU2YH pLgd1qRsKf7tz1kJfTmTx4tx8w8dR7Qxe6vuesShEr+QHwb4PjliroXzxrTJYBAe WVikkk6aYkWrDJHmn2SOmrXdwzUOpkIOuSludoP2ctDZfjsHbigNMI40smQI/t0F qnLwZ0QscOybxE1z4l4WHnpr3opl3EyLg2XNvbdDCXBZdFP+YmVHG06sZrEwJktc UALj5pTAytB87vK7p77kMsAOniZJj2T47mdh8ggJmYiGby4JkGWr3Ya9YTWRoQxX v1ohflHg8OC88iXWaAQPzi/gtpcM17IkeR5EDWV+/FtOzSVReqjpXwI37DvJ0CUp BcB/ZBdLJ2MTAU5D7UKm/0OIjPcfE110ICXrbCn+oBvhZ+Tn1GeYrQje4nW1Rfb5 dWU2Ue4FzGPun/d/M1zVmVSUYocPpY6nLOn6Qh5+t6yK0vKzkuyhFgsrURrJwLQ8 qFEjFQfep4vpM0NF+JHriPGglyVpkaEHklCl9IqxcPVbIEL7AjQ= =QWGV -END PGP SIGNATURE-
